Build a production-shaped distributed rate limiter in Go and Redis using a token bucket algorithm. Includes runnable code, atomic Lua scripts, integration tests, and a roadmap to extend it for your CV.
How to design ledger systems that survive concurrency, partial failures, and audits. Covers double-entry invariants, event-sourced architectures, idempotency, and reconciliation patterns used in production.
Ship a real webhook delivery service with idempotency, retries, and a dead-letter queue — a portfolio project that signals genuine distributed-systems skill to hiring managers.
Compare io_uring and epoll as Linux async I/O architectures, covering kernel internals, syscall costs, and the production patterns where each one wins.
How BBR actually estimates bottleneck bandwidth and RTT, why v2/v3 fix v1’s loss-insensitivity, and what to tune at the kernel, application, and NIC layers before you ship it.