Build Fault-Tolerant Backends with Elixir and Phoenix
Elixir is a functional, concurrent language built on the Erlang VM — the same foundation that runs telecom systems processing millions of simultaneous connections. Phoenix is its web framework, capable of handling massive throughput with built-in real-time features. This track covers the full stack: Elixir's functional core, Phoenix for HTTP and WebSocket APIs, Ecto for database access, OTP for concurrency, and production deployment — all grounded in the language's actual guarantees around fault tolerance and process isolation.
What You Will Learn
You will start with Elixir's syntax and functional programming model, then move into Phoenix for building RESTful APIs and handling real-time communication with Phoenix Channels. You will use Ecto for data persistence and schema design, write tests for both Elixir modules and Phoenix endpoints, and apply Elixir ecosystem best practices. At the advanced level, you will work with OTP — supervisors, GenServers, and processes — and build distributed systems. The track closes with performance tuning, observability, and deploying Elixir/Phoenix applications to production.
The Learning Path
Twelve courses span A1 through C2. The free introductory course covers Elixir fundamentals, followed by B1 functional programming and a sequence of B2 courses on Phoenix, Ecto, REST APIs, Channels, testing, and ecosystem practices. The final three courses step up to C1 and C2: Concurrency with OTP and Processes, Performance and Observability, Deployment and DevOps for Elixir/Phoenix, and the capstone Advanced OTP and Distributed Systems.
How It Works
Each course is split into short, hands-on lessons you complete in the built-in code editor with real-time feedback. An AI tutor is available when you get stuck, and every concept is reinforced with exercises that run against actual Elixir and Phoenix code rather than toy examples.
