Why 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. Elixir’s lightweight processes and message-passing model make it ideal for highly concurrent workloads, whether powering millions of real-time connections or orchestrating distributed services across clusters.

  • Scalability

    Lightweight processes and concurrency support for handling heavy traffic.

  • Fault tolerance

    Built-in features for system resilience and minimal downtime.

  • Performance

    Highly-responsive application performance, even under heavy loads.

  • Real-time Applications

    Thousands of concurrent connections managed for real-time functionality.

  • Ecosystem

    Vibrant community support alongside updated libraries and frameworks (e.g. Phoenix).

  • Testing and Maintainability

    Immutability and functionality for easier testing and code maintenance.

  • Concurrency without Complexity

    Actor-based model to simplify parallel processing and distributed systems.

  • Productivity

    Clean syntax, powerful abstractions, and metaprogramming for efficient development.

Does Elixir fit your needs?

The Ecosystem

The Elixir ecosystem comprises many powerful and innovative projects, which are developed by a large number of contributors and companies. Here are just a few of them:

The Phoenix Framework is the cornerstone of Elixir web development. It’s fast, scalable, and real-time ready through Channels. Its standout feature, LiveView, enables rich interactive apps without heavy JavaScript, making Phoenix a central tool in the ecosystem.

Ecto is Elixir’s database library for schemas, queries, and migrations. Its composable query syntax and functional design make working with relational databases safe and ergonomic.

Broadway is designed for data pipelines. It manages concurrency, back-pressure, and integrations with systems like RabbitMQ, Kafka, and SQS, making large-scale processing reliable.

Nx (Numerical Elixir) brings numerical computing and machine learning to Elixir. With tensor support and JIT compilation backends like EXLA and Torchx, it opens new doors for scientific and ML workloads.

Moving to Elixir

Switching technologies can seem risky, but with the right knowledge and experience the process can be smooth and straightforward. We have helped teams migrate their projects from Ruby, Python, and Node to Elixir.

Define the scope: Our team will sit with you and gather information from documentation and interviews. Is this a monolith or a service-oriented architecture? How long was the development phase, and how thorough is the documentation? Which internal and external systems depend on the application? What is the timeline? bitcrowd will devise a plan that fits your needs and requirements

Filling the blind spots: Are all transitions accounted for? Which parts of the UI are currently undocumented? bitcrowd is actively developing custom tooling that extracts specifications from your legacy software, assisting us in understanding the scope of the transition.

Strategy and timescale: Based on our deep understanding of your current architecture, we’ll create a project-specific migration plan. Do we need to move slowly so that other teams can keep up? Or do we need to move fast, with only a limited time window for the the launch of your critical components?

Development: We can introduce Elixir to your product gradually, running alongside your existing systems until we’ve moved the entire legacy system over. When time is of the essence, we develop parallel migration tasks and work in multiple teams. bitcrowd developers work as one team with your own developers, ensuring that our knowledge and skill is transferred to your in-house team.

Benefits of adopting Elixir

Migrating isn’t about risk. It’s about preparing your product for growth, and ensuring its reliability. With the right guidance, Elixir can become a natural part of your system while your business continues to run smoothly.

In practice, a small Elixir service often can replace a cluster of servers running another language, delivering the same features at a lower cost and with greater reliability.

Elixir applications deliver significant performance gains and scale out easily, often replacing clusters of servers with a smaller, more efficient footprint. Beyond the technology, we will focus on team enablement, helping developers who are new to functional programming to quickly become familiar with lasting good practices. We will mentor developers that are transitioning to Elixir without prior experience in functional programming.

bitcrowd has discovered that the best way to learn Elixir is to work on a real live project, while experts guard you from making mistakes. This means your team can quickly level-up their coding style, producing clean and maintainable systems. We will support your team throughout the learning process, ensuring that the transition to Elixir is perceived as a step forward, not an obstacle.

What benefits would Elixir bring to your setup?

Open source @bitcrowd

It's an honour to not only stand on the shoulders of giants, but to also build parts of the foundation ourselves. At bitcrowd, we aim to improve every aspect of our workflow. If we find a tool that is missing, we invest the time to create and maintain it. Check them out! We hope you find them as useful :)

  • ChromicPDF logo, the text in red, yellow, and green

    ChromicPDF

    A convenient HTML to PDF/A rendering library for Elixir based on Chrome & Ghostscript. NodeJS-free, it supports header and footer HTML templates, and can convert to PDF/A

    Read more
  • Carbonite logo. Angluar dark-gray text and a stylised C character.

    Carbonite

    Audit trails for Elixir/PostgreSQL based on triggers. Carbonite makes it easy to create audit trails for tables in a PostgreSQL database and integrate them into an Elixir application.

    Read more
  • ticket-tick logo, a cinema ticket with a checkmark cut out

    Tickety-Tick

    A super-useful utility to connect your tickets with the git branch and with the PR, creating a trail of work you can follow.

    Read more

Why bitcrowd?

Photo of the Elixir meetup 100th edition, bitcrowd Founder in front of a large screen giving a talk to many seated people

At bitcrowd, we launch around ten new projects each year. Our experienced team of Elixir developers feel at home in all kinds of scenarios.

With each client, we get to know new work environments. It gives us the chance to see our ideas play out, and learn from every time we create a new solution. With all this experience, we will help your team get on and build better products.

We offer consultancy tailored to your situation, from a team that has been building and deploying live Elixir products since 2016.

Our team will fit into your workflow, and can assess and improve parts of the process — maybe that’s code review, process improvements, or project management.

We can also help directly with development: planning & completing individual features, writing tests, and helping your developers overcome challenges in their own tasks.

If you’re excited by what we’re building and want to learn more, don’t hesitate to reach out. Drop us an email or schedule a conversation to discover how our tools can enhance your projects and streamline your workflow!

Community

bitcrowd developers take an active part in the local and online Elixir communities. We regularly attend and present at local meetups and conferences, and write blog posts about issues and solutions we’ve found interesting. We are proud supporters of Elixir conferences such as Code BEAM Berlin 2023

Want more insights? Read our Blog!

Get started with Elixir

We build Elixir to scale

We specify, design, and build products that can start small, and scale up to meet huge customer bases. Thanks to our experience in developing Elixir applications, the products are just as fast and agile at scale as they were as an MVP.

Box - Die Abholstation

Box – Die Abholstation is Deutsche Bahn’s vision for making their stations an ever-more useful part of daily life. Providing a pick-up and drop-off site for all kinds of deliveries — from pan-European retailers to local florists and dry-cleaners — orders can be collected on your way home, simply by using a secure locker at your local train station.

Working with Deutsche Bahn, bitcrowd helped identify the project’s requirements to create a product that’s functional and accessible. During our in-depth workshopping process we sketched and wireframed every step of the process to meet the needs of retailers, end users, and DB staff. As security for Box – Die Abholstation is critical, our backend team worked hard to create fully robust systems, while our frontend engineers crafted intuitive layouts from our UX and visual designers.

Since Box – Die Abholstation launched, we’ve been continually refining, improving, and extending both the product and its marketing materials, creating new landing pages and an interactive demo to walk users through the whole process.

Released: October '21

Phone-sized screen showing the UI for selecting a compartment size. Available sizes are shown with measurements and a line drawing of the compartment.
Phone-sized screenshot of the UI for selecting how to return an article through the Box system

Planning a project?

Let’s team up and create something remarkable! Just reach out and we’ll get started on your project.

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