home wir entwickeln außergewöhnliche anwendungen agil testgetrieben für das web in elixir ruby and react js home vision make your vision a reality extraordinary applications built by bitcrowd s extra friendly humans contact us email green services what we do right left left default our technologies elixir page purple react page blue go page green ruby page pink progressive web app pwa purple left yellow what we ve made default h3 left default unsere leistungen null right primary purple want to work with us let s team up and create something remarkable just reach out and we ll get started on your project hire us email left secondary default yellow job section we make a great team pink see all jobs page what s new on the blog left default plan your next project we re ready to help make your best product yet all you need to do is reach out hire us email left secondary default green apostrophecms home page public default pink null bitcrowd web development agency wir entwickeln außergewöhnliche anwendungen agil testgetrieben für das web in elixir ruby and react js

home wir entwickeln außergewöhnliche anwendungen agil testgetrieben für das web in elixir ruby and react js home vision make your vision a reality extraordinary applications built by bitcrowd s extra friendly humans contact us email green services what we do discover the power of collaboration with services tailored to your exact needs right left left default our technologies learn more about the tools and frameworks we use to craft your project elixir robust scalable and expressive elixir has become the new gold standard for building reliable production grade systems running on the battle tested beam vm it inherits decades of proven fault tolerance and concurrency guarantees from erlang page purple react used to create expressive web based applications that engage your customers this javascript library is fast versatile and battle tested page blue go go golang is a fast simple compiled language for modern backends and cloud native apps with built in concurrency goroutines channels a rich standard library and single static binaries it s ideal for apis clis and infrastructure easy to learn efficient to run and reliable at scale page green ruby this elegant flexible programming language has a long history and is mainly used for maintaining legacy projects page pink progressive web app pwa these technologies allow your web application to work just like a native app using notifications and on device storage while being available even when your users are offline purple left yellow what we ve made explore our portfolio of diverse projects and how we ve helped our clients make an impact default h3 left default unsere leistungen null right primary purple want to work with us let s team up and create something remarkable just reach out and we ll get started on your project hire us email left secondary default yellow job section we make a great team interested in joining us current job openings at bitcrowd pink see all jobs page what s new on the blog left default plan your next project we re ready to help make your best product yet all you need to do is reach out hire us email left secondary default green apostrophecms home page public default pink null bitcrowd web development agency wir entwickeln außergewöhnliche anwendungen agil testgetrieben für das web in elixir ruby and react js

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Discover the power of collaboration with services tailored to your exact needs. 
Learn more about the tools and frameworks we use to craft your project. 
Robust, scalable, and expressive, Elixir has become the new gold standard for building reliable, production-grade systems. Running on the battle-tested BEAM VM, it inherits decades of proven fault-tolerance and concurrency guarantees from Erlang.  
Used to create expressive web-based applications that engage your customers, this JavaScript library is fast, versatile, and battle-tested. 
Go (Golang) is a fast, simple, compiled language for modern backends and cloud-native apps. With built-in concurrency (goroutines, channels), a rich standard library, and single static binaries, it’s ideal for APIs, CLIs, and infrastructure: easy to learn, efficient to run, and reliable at scale. 
This elegant, flexible programming language has a long history and is mainly used for maintaining legacy projects. 
These technologies allow your web application to work just like a native app — using notifications and on-device storage while being available even when your users are offline. 
Explore our portfolio of diverse projects — and how we’ve helped our clients make an impact. 
Interested in joining us? 
Current job openings at bitcrowd:

Wir entwickeln außergewöhnliche Anwendungen. Agil. Testgetrieben. Für das Web. In Elixir, Ruby, and React JS.

bitcrowd web development agency

Home

home

Darren

steady projects steady steady 2 837 600 000 18m default left default project timeline 2021 designed and built the core membership billing payments system reverse engineering chargebee s behavior default 2023 added support for trials gifts and enhanced features as steady s business evolved default 2025 implemented german compliant invoicing and orchestrated the staged migration of all 600 000 accounts default 2025 orchestrated the staged migration of all 600 000 accounts to the new in house billing system default center default left default significant cost savings no more saas fees on 600 000 accounts default flexibility to innovate without vendor constraints default an admin system that their support team can actually use default legal compliance built into the foundation default left default center green autonomous execution we didn t need hand holding we coordinated directly with stakeholders refined requirements and delivered finished work packages default risk management we ran progressive migrations on staging 5 users 500 users to identify and fix edge cases before production default domain expertise we reverse engineered complex billing logic navigated german tax law and built robust systems that handle financial data correctly default smooth handover we built for steady s team to maintain not for ongoing dependency default center green have we got you interested schedule a call url left secondary default projects steady default page public default default null

steady projects steady steady 2 837 media makers 600 000 memberships 18m revenue in 2024 default the challenge the stakes were high steady acts as a financial intermediary handling payouts to publishers and tax obligations to the state any billing errors would cascade into accounting problems and regulatory issues they needed to migrate 600 000 users without missing a beat but didn t have the team capacity to pull it off their backend developers were already overstretched drowning in maintenance tasks with no capacity to tackle the migration they desperately needed the journey bitcrowd stepped in as the extended team steady needed over multiple iterations from 2021 to 2025 we took ownership of self contained work packages while collaborating closely with steady s skilled in house team throughout we positioned ourselves to take pressure off steady s backend developers identifying requirements scoping work implementing features and anticipating edge cases so their team could focus on their core application left default project timeline 2021 designed and built the core membership billing payments system reverse engineering chargebee s behavior default 2023 added support for trials gifts and enhanced features as steady s business evolved default 2025 implemented german compliant invoicing and orchestrated the staged migration of all 600 000 accounts default 2025 orchestrated the staged migration of all 600 000 accounts to the new in house billing system default center default the solution finally we handed the final migration pieces back to steady s team the handover was smooth the lights stayed green and the saas fees are history steady now has complete control over their billing infrastructure left default significant cost savings no more saas fees on 600 000 accounts default flexibility to innovate without vendor constraints default an admin system that their support team can actually use default legal compliance built into the foundation default left default how bitcrowd helped we acted as the capacity your overstretched team needs rather than forcing steady to choose between maintaining their core product and building critical infrastructure we took ownership of the entire migration project from requirements gathering to implementation to qa the result your team gets their capacity back while mission critical projects get done no hiring headaches no knowledge gaps no roadblocks center green autonomous execution we didn t need hand holding we coordinated directly with stakeholders refined requirements and delivered finished work packages default risk management we ran progressive migrations on staging 5 users 500 users to identify and fix edge cases before production default domain expertise we reverse engineered complex billing logic navigated german tax law and built robust systems that handle financial data correctly default smooth handover we built for steady s team to maintain not for ongoing dependency default center green have we got you interested if you have questions about the the processes behind this project or have a similar project in mind let s talk schedule a call url left secondary default projects steady default page public default default null


Media Makers 
Memberships 
Revenue in 2024 
The Challenge
The stakes were high: Steady acts as a financial intermediary, handling payouts to publishers and tax obligations to the state. Any billing errors would cascade into accounting problems and regulatory issues. They needed to migrate 600,000 users without missing a beat - but didn't have the team capacity to pull it off. Their backend developers were already overstretched - drowning in maintenance tasks with no capacity to tackle the migration they desperately needed. 
The Journey
bitcrowd stepped in as the extended team Steady needed. Over multiple iterations from 2021 to 2025, we took ownership of self-contained work packages while collaborating closely with Steady's skilled in-house team. Throughout, we positioned ourselves to take pressure off Steady's backend developers - identifying requirements, scoping work, implementing features, and anticipating edge cases so their team could focus on their core application. 
The Solution
Finally, we handed the final migration pieces back to Steady's team. The handover was smooth, the lights stayed green, and the SaaS fees are history.
Steady now has complete control over their billing infrastructure. 
How bitcrowd Helped
We acted as the capacity your overstretched team needs. Rather than forcing Steady to choose between maintaining their core product and building critical infrastructure, we took ownership of the entire migration project - from requirements gathering to implementation to QA.
The result: Your team gets their capacity back while mission-critical projects get done. No hiring headaches, no knowledge gaps, no roadblocks. 
If you have questions about the the processes behind this project, or have a similar project in mind, let's talk!

Steady

steady

admin

box die abholstation wir entwickeln außergewöhnliche anwendungen agil testgetrieben für das web in elixir ruby and react js projects box die abholstation box die abholstation 5697 1 8 billion 4 870 000 000 default pink left default have we got you interested schedule a call url left secondary default the collaboration left default would you like to find out more ask us a question url left secondary default left default elixir is a great environment let s talk url null primary default elixir s clarity left default check out our other case studies take me to the case studies page right primary default projects box die abholstation default page public default green summary large image bitcrowd projects db box die abholstation wir entwickeln außergewöhnliche anwendungen agil testgetrieben für das web in elixir ruby and react js bitcrowd case study db infrago s box die abholstation on elixir db infrago needed a rock solid foundation for box die abholstation they chose elixir syncing 1 000 parcel lockers at train stations across germany handling offline states eventual confirmations and resilient operation under changing network conditions all built with elixir website

box die abholstation wir entwickeln außergewöhnliche anwendungen agil testgetrieben für das web in elixir ruby and react js projects box die abholstation box die abholstation 5697 train stations in germany 2023 1 8 billion train travellers in germany 2023 4 870 000 000 packages sent in germany 2023 default pink the opportunity each day millions of commuters pass through the same train stations on their way to and from work for deutsche bahn this raised a clear challenge stations should be more than transit points to improve this they aim to offer added value to travelers and to connect with local businesses why because while many retailers already provide click collect services commuters still have to leave the station to pick up their orders adding extra time and inconvenience to their daily routine what if you could get click collect right at the train station by bringing click collect directly to the train platform deutsche bahn transforms stations into convenient pickup hubs commuters can collect parcels exactly where they already travel without waiting for home deliveries or making additional trips to parcel shops the service requires no app account or registration customers simply use a personal pickup code sent via sms or email the solution is box die abholstation beyond convenience the concept also promotes sustainability by reducing delivery routes and emissions in city centers in partnership with selected providers the stations can securely handle not only retail parcels but also medicines rental items and luggage box die abholstation turns everyday transit spaces into practical accessible service points seamlessly integrating shopping into commuters daily lives connecting with dhl packstations dhl packstations are closely tailored to the company s own use case they often do not have a permanent internet connection while a packstation is offline deliveries and pick ups can still take place which changes the system status this means that any number of change messages can arrive at once at any time dhl s packstation api gateway forms a certain abstraction layer and smooths out the events however this also means another status layer that needs to be synchronised left default have we got you interested if you have questions about the the processes behind this project or have a similar project in mind let s talk schedule a call url left secondary default the collaboration negotiating the specification for a technical product between two corporations the size of deutsche bahn and dhl is a complex task however the agility of bitcrowd s small resourceful team made the process a success resulting in an exceptional product the communication protocol bitcrowd s first task was to develop a communication protocol that keeps the status of the packstations synchronised across the three system boundaries and can handle connection interruptions and status changes in a self healing manner it quickly became clear to bitcrowd s team of elixir experts that the communication model between the systems would have to be a stateless protocol of immutable all or nothing status requests a desired state change can therefore either be applied in full or must be discarded completely however the discontinuous connection also meant that confirmations could arrive at any time or only after many days eventually confirmed became the term of the week in the dev team api works from the outset bitcrowd s small team demonstrated its ability to keep pace in the collaboration with a large corporation s development department bitcrowd quickly took the lead in design coordination and implementation achieving an early breakthrough by successfully exchanging the first api messages and status updates the breakthrough was soon achieved and the first messages and status changes were exchanged to ensure reliable testing the team built a mock api server that mirrored the packstation api s behavior using elixir s lightweight agent and genserver processes they were able to quickly simulate different states and provide flexible staging environments left default would you like to find out more are you thinking about a project like this and would like to discuss if elixir is a good choice for you application let s have a call ask us a question url left secondary default under the umbrella elixir allows you to build clearly structured modular monoliths using the umbrella app concept in elixir an umbrella app is a project that bundles several independent applications apps in a common repository these individual apps can be developed and tested independently but share configuration dependencies and build process the strict separation between the apps allows the application to be clearly structured if necessary the system boundaries can also be used to transfer the individual apps to separate systems this would also have been possible in other languages but would have required much more discipline and auxiliary code elixir s good natured error handling made development easier and faster the isolation and monitoring of elixir processes in so called supervision trees means that errors are limited to sub processes the other parts of the application remain stable and performant this makes debugging much easier background processes the architecture of box the pick up station requires the effective management of a large number of background processes elixir just had the right thing oban is a job processing library for elixir that reliably manages background jobs via a postgresql database it supports features such as retries priorities scheduling cron jobs and distributed execution across multiple nodes unlike other programming languages elixir offers integrated key value store functionalities that oban can access this means that background process control is firmly integrated into the system it is a significant advantage when such an essential component does not have to be outsourced to external applications such as redis phoenix liveview phoenix liveview is a feature of the phoenix framework that enables developers to build interactive web applications without relying heavily on client side javascript instead of separating frontend and backend with an api liveview keeps ui state on the server and communicates with the browser through a persistent connection this allows dynamic features such as live validation search and dashboards to be implemented primarily in elixir while still delivering responsive user experiences phoenix liveview allowed the bitcrowd team to implement the management interfaces without additional front end frameworks nevertheless the guis offer real time updates and excellent responsiveness updates are handled efficiently by sending only small dom changes to the browser rather than reloading entire pages because liveview runs on the beam each user interface is managed by lightweight processes that scale well and provide strong fault tolerance this architecture simplifies application design and makes real time features easier to build while keeping the server as the single source of truth left default elixir is a great environment if you have not yet looked at elixir you are probably missing out bitcrowd ensures that even your first project is a success let s talk url null primary default elixir s clarity when new team members are introduced on the app they are often enthusiastic about elixir s clarity where other programming languages require syntactically complex constructs for error handling elixir is largely free of framework noise in fact developers often praise elixir as a say what you mean programming language elixir code is explicit without the magic typical of rails for example which makes it easier to learn at the same time there are many useful abstraction layers left default check out our other case studies click below to learn about other elixir and ai projects from bitcrowd take me to the case studies page right primary default projects box die abholstation default page public default green summary large image bitcrowd projects db box die abholstation wir entwickeln außergewöhnliche anwendungen agil testgetrieben für das web in elixir ruby and react js bitcrowd case study db infrago s box die abholstation on elixir db infrago needed a rock solid foundation for box die abholstation they chose elixir syncing 1 000 parcel lockers at train stations across germany handling offline states eventual confirmations and resilient operation under changing network conditions all built with elixir website

DB InfraGo needed a rock-solid foundation for Box - Die Abholstation. They chose Elixir. Syncing 1,000 + parcel lockers at train stations across Germany, handling offline states, eventual confirmations, and resilient operation under changing network conditions. All built with Elixir.

bitcrowd Case Study: DB InfraGo's Box - Die Abholstation on Elixir


Train stations in Germany (2023) 
Train travellers in Germany (2023) 
Packages sent in Germany (2023) 
The Opportunity
Each day, millions of commuters pass through the same train stations on their way to and from work. For Deutsche Bahn, this raised a clear challenge: Stations should be more than transit points. To improve this, they aim to offer added value to travelers and to connect with local businesses.
Why? Because while many retailers already provide Click & Collect services, commuters still have to leave the station to pick up their orders - adding extra time and inconvenience to their daily routine.
What if you could get Click & Collect right at the train station?
By bringing Click & Collect directly to the train platform, Deutsche Bahn transforms stations into convenient pickup hubs. Commuters can collect parcels exactly where they already travel - without waiting for home deliveries or making additional trips to parcel shops. The service requires no app, account, or registration; customers simply use a personal pickup code sent via SMS or email. 
The solution is “Box – Die Abholstation.”
Beyond convenience, the concept also promotes sustainability by reducing delivery routes and emissions in city centers. In partnership with selected providers, the stations can securely handle not only retail parcels but also medicines, rental items, and luggage. “Box – Die Abholstation” turns everyday transit spaces into practical, accessible service points - seamlessly integrating shopping into commuters’ daily lives. 
Connecting with DHL Packstations
DHL Packstations are closely tailored to the company's own use case.
They often do not have a permanent internet connection. While a Packstation is offline, deliveries and pick-ups can still take place, which changes the system status.
This means that any number of change messages can arrive at once at any time. DHL's Packstation API Gateway forms a certain abstraction layer and smooths out the events. However, this also means another status layer that needs to be synchronised. 
 If you have questions about the the processes behind this project, or have a similar project in mind, let's talk! 
Negotiating the specification for a technical product between two corporations the size of Deutsche Bahn and DHL is a complex task.
However, the agility of Bitcrowd's small, resourceful team made the process a success, resulting in an exceptional product. 
The Communication Protocol
bitcrowd's first task was to develop a communication protocol that keeps the status of the Packstations synchronised across the three system boundaries and can handle connection interruptions and status changes in a self-healing manner. 
It quickly became clear to bitcrowd's team of Elixir experts that the communication model between the systems would have to be a stateless protocol of immutable ‘all or nothing’ status requests. 
A desired state change can therefore either be applied in full or must be discarded completely.
However, the discontinuous connection also meant that confirmations could arrive at any time, or only after many days. "Eventually confirmed" became the term of the week  in the dev team. 
API Works
From the outset, bitcrowd's small team demonstrated its ability to keep pace in the collaboration with a large corporation's development department. bitcrowd quickly took the lead in design, coordination, and implementation — achieving an early breakthrough by successfully exchanging the first API messages and status updates.
The breakthrough was soon achieved and the first messages and status changes were exchanged.
To ensure reliable testing, the team built a mock API server that mirrored the Packstation API’s behavior. Using Elixir’s lightweight Agent and GenServer processes, they were able to quickly simulate different states and provide flexible staging environments. 
Are you thinking about a project like this and would like to discuss if Elixir is a good choice for you application, let's have a call! 
 
Under the Umbrella
Elixir allows you to build clearly structured modular monoliths using the Umbrella App concept. In Elixir, an Umbrella App is a project that bundles several independent applications (‘apps’) in a common repository. These individual apps can be developed and tested independently, but share configuration, dependencies and build process. The strict separation between the apps allows the application to be clearly structured. If necessary, the system boundaries can also be used to transfer the individual apps to separate systems. This would also have been possible in other languages, but would have required much more discipline and auxiliary code.
Elixir's good-natured error handling made development easier and faster. The isolation and monitoring of Elixir processes in so-called supervision trees means that errors are limited to sub-processes. The other parts of the application remain stable and performant. This makes debugging much easier. 
Background processes
The architecture of Box – The Pick-up Station requires the effective management of a large number of background processes. Elixir just had the right thing!
Oban is a job processing library for Elixir that reliably manages background jobs via a PostgreSQL database. It supports features such as retries, priorities, scheduling, cron jobs and distributed execution across multiple nodes. Unlike other programming languages, Elixir offers integrated key-value store functionalities that Oban can access. This means that background process control is firmly integrated into the system. It is a significant advantage when such an essential component does not have to be outsourced to external applications such as Redis. 
Phoenix Liveview
Phoenix LiveView is a feature of the Phoenix Framework that enables developers to build interactive web applications without relying heavily on client-side JavaScript. Instead of separating frontend and backend with an API, LiveView keeps UI state on the server and communicates with the browser through a persistent connection. This allows dynamic features such as live validation, search, and dashboards to be implemented primarily in Elixir while still delivering responsive user experiences.
Phoenix LiveView allowed the bitcrowd team to implement the management interfaces without additional front-end frameworks. Nevertheless, the GUIs offer real-time updates and excellent responsiveness. Updates are handled efficiently by sending only small DOM changes to the browser rather than reloading entire pages. Because LiveView runs on the BEAM, each user interface is managed by lightweight processes that scale well and provide strong fault tolerance. 
This architecture simplifies application design and makes real-time features easier to build while keeping the server as the single source of truth. 
If you have not yet looked at Elixir, you are probably missing out. bitcrowd ensures that even your first project is a success.  
When new team members are introduced on the app, they are often enthusiastic about Elixir's clarity. 
Where other programming languages require syntactically complex constructs for error handling, Elixir is largely free of ‘framework noise’.
In fact, developers often praise Elixir as a ‘say what you mean’ programming language. Elixir code is explicit, without the magic typical of Rails, for example, which makes it easier to learn. At the same time, there are many useful abstraction layers. 
Click below to learn about other Elixir and AI projects from bitcrowd.

bitcrowd projects — DB Box - die Abholstation

Box - die Abholstation

box die abholstation

radioeye projects radioeye radioeye left default the story left default the team left purple more past projects default h3 left default projects radioeye default page public default default null

radioeye projects radioeye radioeye the product research from charité radiologists was used to train an ml model aiming to aid clinicians in their diagnosis of various eye conditions freed from the manual research of printed text books or searching case history databases clinicians can now upload mri scans to the application they then receive potential diagnoses along with case history and fully navigable scans increasing vital speed and accuracy left default the story based on the initial pitch from the radioeye research team alongside their prototype click dummy the charité s bih incubator green lit the project radioeye then looked to us to turn this into a real web application first steps our design team quickly understood the project s vision thanks to radioeye s prototype click dummy working with their radiographers we reimagined the app s userflow and user interface by introducing key concepts to better fit the product to the needs of clinicians core functionality was improved with the addition of extra screens and ui states we also undertook several rounds of workshops to refine the process for uploading images taking care to account for real world clinicians using the app themselves while integrating the radiologists pacs system which they use to navigate mri imaging refinements while bitcrowd was working with the radiologists to create the first userflows and wireframes we introduced the concept of case triage to help clinicians use the cases presented to them by the ml algorithm this meant clinicians could use a pinned case list for easy access to relevant cases showing suspected matches which could include several different conditions as a differential diagnosis improving the accuracy speed and completeness of the assessment taking on the user s perspective we also identified potential friction and points of confusion for clinicians when using the app so we could add extra guidance where needed prototypes at this early design stage we ll use a click dummy prototype to bring the app to life using wireframes we link each screen to the next with the simple click of a button being able to click from screen to screen gives a feel for how the app will work letting us spot any potential problems very low fidelity wireframes were used to build the first prototype which we then updated with increasingly high fidelity screens as we refined them using prototypes to guide our changes during these design iterations allowed us to improve the position and grouping of several ui elements this made radioeye s interface especially clear and straightforward visual design while we were working on increasingly high fidelity designs we refined the layout to radioeye s particular needs here the ui needed to be both minimal and highly functional with a dark mode schema to match standard mri image viewing software of course functionality is key but it s also important that the ui looks good we created variations of their official colours that fit the dark mode design in order to give it a recognisable yet subtle branding the icon set was carefully chosen for both clarity and character creating an interface that works well and looks the part frontend web app using the visual designs userflows and prototypes our frontend team went to work on creating a highly responsive react web application the component library was organised using storybook allowing us to build test qa and refine the ui while simultaneously working on app functionality the radioeye app operates on a range of devices from the radiology lab s multi monitor desktop pcs to less powerful laptops and tablets backend functionality the web app still needed to be tied to the machine learning technology so it was designed to make requests to an elixir api custom built by bitcrowd s backend team the images the web app sends to the api running on the server are passed on to the ml algorithm with the resulting cases pulled from the database the relevant cases are then sent to the app and displayed to the clinician iteration radioeye v1 was trialled in hospitals across berlin bih then approached bitcrowd for a second iteration v2 was conceived with the help of user feedback offering significant improvements to the ui and overall navigation a hierarchical list of cases was also added grouped according to regions of the eye allowing doctors to leverage the ml results with their own expertise v2 s new onboarding flow helped guide new users when using the application and we improved the transitions between the pacs system and radioeye as the screen sizes commonly used by radiologists are squarer in format we designed a landscape version of the product to enhance the user experience left default the team left purple more past projects default h3 left default projects radioeye default page public default default null


The product
Research from Charité radiologists was used to train an ML model, aiming to aid clinicians in their diagnosis of various eye conditions. Freed from the manual research of printed text books or searching case history databases, clinicians can now upload MRI scans to the application. They then receive potential diagnoses, along with case history and fully-navigable scans – increasing vital speed and accuracy. 
Based on the initial pitch from the Radioeye research team alongside their prototype click dummy, the Charité’s BIH incubator green-lit the project. Radioeye then looked to us to turn this into a real web application. 
First steps
Our design team quickly understood the project’s vision thanks to Radioeye’s prototype click dummy. Working with their radiographers, we reimagined the app’s userflow and user interface by introducing key concepts to better fit the product to the needs of clinicians. Core functionality was improved with the addition of extra screens and UI states. 
We also undertook several rounds of workshops to refine the process for uploading images, taking care to account for real-world clinicians using the app themselves – while integrating the radiologists’ PACS system (which they use to navigate MRI imaging). 
Refinements
While bitcrowd was working with the radiologists to create the first userflows and wireframes, we introduced the concept of “case triage” to help clinicians use the cases presented to them by the ML algorithm. This meant clinicians could use a “pinned case” list for easy access to  relevant cases – showing suspected matches which could include several different conditions as a differential diagnosis, improving the accuracy, speed, and completeness of the assessment.
Taking on the user’s perspective, we also identified potential friction and points of confusion for clinicians when using the app so we could add extra guidance where needed. 
Prototypes
At this early design stage, we’ll use a click dummy prototype to bring the app to life. Using wireframes, we link each screen to the next with the simple click of a button. Being able to click from screen to screen gives a feel for how the app will work, letting us spot any potential problems.
Very low-fidelity wireframes were used to build the first prototype, which we then updated with increasingly high-fidelity screens as we refined them. Using prototypes to guide our changes during these design iterations allowed us to improve the position and grouping of several UI elements. This made Radioeye’s interface especially clear and straightforward. 
Visual design
While we were working on increasingly high-fidelity designs, we refined the layout to Radioeye’s particular needs. Here the UI needed to be both minimal and highly functional, with a “dark mode” schema to match standard MRI image viewing software.
Of course functionality is key, but it’s also important that the UI looks good! We created variations of their official colours that fit the dark mode design in order to give it a recognisable yet subtle branding. The icon set was carefully chosen for both clarity and character – creating an interface that works well and looks the part. 
Frontend web app
Using the visual designs, userflows, and prototypes, our frontend team went to work on creating a highly-responsive React web application. The component library was organised using Storybook, allowing us to build, test, QA, and refine the UI while simultaneously working on app functionality.
The Radioeye app operates on a range of devices: from the radiology lab's multi-monitor desktop PCs to less powerful laptops and tablets. 
Backend functionality
The web app still needed to be tied to the machine learning technology, so it was designed to make requests to an Elixir API custom-built by bitcrowd’s backend team. The images the web app sends to the API running on the server are passed on to the ML algorithm, with the resulting cases pulled from the database. The relevant cases are then sent to the app and displayed to the clinician. 
Iteration
Radioeye V1 was trialled in hospitals across Berlin. BIH then approached bitcrowd for a second iteration. V2 was conceived with the help of user feedback, offering significant improvements to the UI and overall navigation. A hierarchical list of cases was also added, grouped according to regions of the eye – allowing doctors to leverage the ML results with their own expertise.
V2’s new onboarding flow helped guide new users when using the application, and we improved the transitions between the PACS system and Radioeye. As the screen sizes commonly used by radiologists are squarer in format, we designed a landscape version of the product to enhance the user experience.

Radioeye

radioeye

everyworks projects everyworks everyworks the product left default the story left default new features and maintenance left default the team left pink more past projects default h3 left default projects everyworks default page public default default null

everyworks projects everyworks everyworks the product deutsche bahn station service ag has a large number of properties around their train stations across germany they now offer them as flexible office space and meeting rooms so now the millions of daily travellers can benefit from a country wide network of flexible workspaces and meeting rooms and db makes better use of their train station properties the core of the everyworks application is an invoicing and payments system paired with customer management a calendaring booking system admin user management and an html email notification service this allows everyworks admins to manage the available spaces meeting rooms and desks schedule bookings and cleaning services and to manage both customer accounts and their own staff s access to the system left default the story we built the backend of the service in elixir taking advantage of the functional programming language s reliability and precision to create a solid and robust application the application was built with the traditional controller approach but the more interactive parts of the ui were built using the then new phoenix liveview this technology allows us to write functionality on the server side and have the ui update to reflect data changes in a highly responsive way it also brings a well designed and full featured component system to a backend language meaning we can create an organised system of rich encapsulated and maintainable components our backend team designed and built the graphql api that s consumed by the everyworks mobile application through this everyworks customers can make bookings and manage their accounts on their phones convenient and fast access to the reserved spaces is handled though an invite system with qr codes generated and sent to each customer and their guests that are scanned on arrival the application is deployed on aws using kubernetes giving us a dependable application environment lightening fast response times and industry leading uptime customers interact with the service through the mobile app and through html emails these html emails contain their qr codes for each booking are a always reliable backup to the mobile app just in case and provide a simple way for a customer s guests to access the service without having an account the emails are everyworks branded responsive and tested on a range of 40 email clients and platforms they need to always work and look good whichever device or email app the customer is using left default new features and maintenance the service started simple over the years we ve built an expanding offering of services as everyworks grows to accommodate more of their customers needs the product started by offering desk spaces available on a per minute pay as you go basis among other new features we ve added flat price meeting rooms with multiple invited attendees flexible prepaid minute wallets day passes vouchers and discount campaigns these new features have helped everyworks fit more conveniently into their customers lives and attracted new customers from other market segments at the beginning everyworks was a standalone product for deutsche bahn and for us in the last four years we ve built a range of services for db station service ag all under the digital marketplace dima umbrella you can read about several of those projects elsewhere in the projects section of the website moving everyworks into the same codebase as all the other dima services increasingly made sense though it was clear it would be no small task the move took quite some developer time and has paid off with reduced maintenance increased reliability and improved ui as the everyworks admin screens got upgraded with all the features that we d developed in the time we d been building those other products since the switch adding new features has been more straightforward and well integrated left default the team left pink more past projects default h3 left default projects everyworks default page public default default null


Deutsche Bahn Station&Service AG has a large number of properties around their train stations across Germany. They now offer them as flexible office space and meeting rooms, so now the millions of daily travellers can benefit from a country-wide network of flexible workspaces and meeting rooms, and DB makes better use of their train station properties.
The core of the everyworks application is an invoicing and payments system, paired with customer management, a calendaring & booking system, admin user management, and an HTML email notification service. This allows everyworks admins to manage the available spaces, meeting rooms, and desks, schedule bookings and cleaning services, and to manage both customer accounts and their own staff’s access to the system. 
We built the backend of the service in Elixir, taking advantage of the functional programming language’s reliability and precision to create a solid and robust application.  
The application was built with the traditional controller approach, but the more interactive parts of the UI were built using the then-new Phoenix LiveView. This technology allows us to write functionality on the server-side and have the UI update to reflect data changes in a highly-responsive way. It also brings a well-designed and full-featured component system to a backend language, meaning we can create an organised system of rich, encapsulated, and maintainable components. 
Our backend team designed and built the GraphQL API that’s consumed by the everyworks mobile application. Through this, everyworks customers can make bookings and manage their accounts on their phones. Convenient and fast access to the reserved spaces is handled though an invite system, with QR codes generated and sent to each customer and their guests, that are scanned on arrival.
The application is deployed on AWS using Kubernetes, giving us a dependable application environment, lightening fast response times, and industry-leading uptime. 
Customers interact with the service through the mobile app, and through HTML emails. These HTML emails contain their QR codes for each booking, are a always-reliable backup to the mobile app just in case, and provide a simple way for a customer’s guests to access the service without having an account. The emails are everyworks-branded, responsive, and tested on a range of 40+ email clients and platforms. They need to always work and look good, whichever device or email app the customer is using. 
The service started simple. Over the years, we’ve built an expanding offering of services as everyworks grows to accommodate more of their customers’ needs. 
The product started by offering desk spaces available on a per-minute pay-as-you-go basis. Among other new features, we’ve added flat-price meeting rooms with multiple invited attendees, flexible prepaid minute-wallets, day passes, vouchers, and discount campaigns.
These new features have helped everyworks fit more conveniently into their customers’ lives, and attracted new customers from other market segments. 
At the beginning, everyworks was a standalone product for Deutsche Bahn and for us. In the last four years, we’ve built a range of services for DB Station&Service AG, all under the “Digital Marketplace” (DiMa) umbrella. You can read about several of those projects elsewhere in the projects section of the website.
Moving everyworks into the same codebase as all the other DiMa services increasingly made sense, though it was clear it would be no small task. The move took quite some developer time, and has paid off, with reduced maintenance, increased reliability, and improved UI as the everyworks admin screens got upgraded with all the features that we’d developed in the time we’d been building those other products. Since the switch, adding new features has been more straightforward and well-integrated.

everyworks

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