I build systems software in Go and C, mostly from scratch, mostly to find out how the thing I use every day actually works. I wrote a grep clone that lands within 2x of GNU grep, an HTTP router sitting directly on raw TCP sockets with tree-based path matching, a markdown parser I rewrote from string-hacking into a real tokenizer, and I work through OSTEP in C because reading about processes and threads was never going to be enough. Concurrency, operating systems, and benchmarks that tell me I was wrong.
A grep clone written in Go from scratch. Recursive directory traversal, case-insensitive matching, line numbering, and the flag combinations that make grep actually usable. Benchmarked against the real thing on an Apple M4 — faster than macOS BSD grep, within ~2x of GNU grep.
An HTTP router built directly on raw TCP sockets — net.Listen, hand-parsed requests, hand-written responses, no net/http anywhere. Routes are matched through a tree structure supporting named parameters (:id) and wildcards (*id), with graceful shutdown via signal.NotifyContext and a WaitGroup that drains in-flight connections.
A TODO backend in Go with a full endpoint surface and a clean split between the db and routes layers, backed by a Postgres schema. Containerised with a multi-stage Dockerfile that compiles a CGO-free static binary into an Alpine image.
A markdown to HTML converter in Go. Started as string manipulation, which broke on every edge case, so I threw it out and rewrote it as a tokenizer and parser. Supports single and double CLI flags, and is fuzz-tested to find the inputs I would never have thought of.
A data processing pipeline demonstrating the Go concurrency patterns that matter: a generator feeding a channel, fan-out across concurrent workers, fan-in back to a single consumer, and context cancellation propagated through every stage so nothing leaks when you cancel.
A reusable bounded worker pool package. Submits jobs across a fixed number of workers, returns what completed versus what was still pending, and respects context cancellation. Clean under go vet, golangci-lint and the race detector.
Implementations and homework solutions from Operating Systems: Three Easy Pieces. The virtualization chapters in C — process creation, signal handling, and threads — written out rather than read through.
Open to systems / backend roles and internships.