Production and Scale
Advanced Elixir operations and architecture -- event pipelines, background jobs, numerical computing, monorepo structure, release engineering, security hardening, property testing, and performance profiling.
Phase 7 focuses on the operational and architectural capabilities that separate prototype systems from durable production platforms. By this point, you already know core Elixir, OTP, Phoenix, and deployment basics. This phase is about scaling that foundation across reliability, observability, security, and team workflows.
You will learn when to use Broadway and GenStage for high-throughput event pipelines, how to build reliable asynchronous workflows with Oban, and how to approach numerical workloads with Nx and EXLA. You will also cover architectural concerns such as umbrella apps, release engineering under real runtime constraints, and defense-in-depth security hardening for Phoenix applications.
The final lessons emphasize correctness and performance under pressure. Property-based testing with StreamData helps you discover edge cases that example tests miss, while profiling and benchmarking techniques help you identify hot paths and improve throughput without guessing.
Who this phase is for:
- Engineers responsible for running Elixir systems in production.
- Teams scaling from single-service apps to multi-component platforms.
- Developers who need practical strategies for reliability, performance, and security.
What you should be able to do after this phase:
- Design event pipelines and job systems with back-pressure, retries, and idempotency.
- Structure larger Elixir codebases for multi-team collaboration.
- Ship reproducible releases with explicit operational runbooks.
- Harden web systems against common attack classes.
- Validate behavior using properties and profile real bottlenecks with confidence.
Common pitfalls to avoid:
- Optimizing before measuring.
- Treating background jobs as best-effort side effects.
- Adding abstractions without ownership boundaries.
- Deferring security and observability until after incidents happen.
Broadway and GenStage
Build high-throughput, back-pressure-aware event pipelines in Elixir using Broadway and GenStage. Covers producers, processors, batching, acknowledgements, and fault handling.
Oban and Reliable Background Jobs
Use Oban for durable background jobs in Elixir. Covers retries, scheduling, uniqueness, workflows, idempotency, and operational monitoring.
Nx and EXLA for Numerical Computing
Use Nx and EXLA for high-performance numerical computing in Elixir. Covers tensors, vectorized ops, JIT compilation, and practical integration patterns.
Umbrella Apps and Monorepo Architecture
Structure large Elixir systems with umbrella apps and monorepo boundaries. Covers app decomposition, dependencies, shared code, and team-scale workflows.
Release Engineering and Runtime Ops
Operate Elixir releases in production with strong runtime practices. Covers release config, migrations, rollbacks, health checks, and incident-ready runbooks.
Security Hardening in Phoenix
Harden Phoenix applications beyond baseline auth. Covers headers, CSP, CSRF, SSRF/XSS defenses, dependency hygiene, and security-focused testing.
Property-Based Testing with StreamData
Catch deep edge cases with property-based testing in Elixir using StreamData. Covers generators, shrinking, invariants, and integration with ExUnit.
Performance Profiling and Benchmarking
Measure and optimize Elixir performance with Benchee, profiling tools, and telemetry. Covers CPU/memory hotspots, process-level analysis, and safe optimization workflow.