Engineer first.
Generalist by necessity.

I'm Johnn Nalwa — a full-stack software engineer who has spent the last few years shipping production systems across very different domains: payroll for Kenyan SMBs, real-time video infrastructure for AI analytics, low-latency NLP pipelines for finance, and clinical iOS apps for rheumatology.

What ties it together is the kind of work I look for: problems where the off-the-shelf answer is wrong, where correctness costs real money or real outcomes, and where the difference between a good build and a great one is measurable in milliseconds, payslips, or patient minutes.

I run lean. I write TypeScript, Python, C++, Swift, and a lot of SQL. I prefer Postgres over the fashionable database, Redis over a new message bus, and a small server over a fleet of services until the workload genuinely demands otherwise.