James Langridge
I'm a self-taught software engineer with an unorthodox background: over a decade as a lawyer-linguist first, where I sharpened the problem-solving and precision I now bring to code. I work in depth with TypeScript (React, Next.js) and Node, and I've written a good amount of C# and Angular over the last couple of years. The projects below aren't demos; they're live, and real people use them.
Selected Personal Projects
A production REST API serving 1.5M+ NASA rover photos across four missions, with Redis caching and a searchable frontend. Handles ~174K requests/month from frontend users and 76 API users at ~40ms average response (151ms P95).
A Strava-approved app that adds the weather where you actually were — computed at the route's midpoint from your GPS data, not just the start. ~40 active users.
An open-source TypeScript SDK for the Strava API, extracted from Rain or Shine and published to npm (~880 downloads): typed client, OAuth, webhook management, pluggable token storage, and built-in rate limiting.
A booking, billing and group-class app I built and run in production for a working personal trainer. Google Calendar sync that survives outages, a prepaid-credit ledger, and a proper CI pipeline with automated backups and browser tests.
Ebook RAG Chatbot
A retrieval-augmented chatbot over my ebook library — ask questions, get answers grounded in the actual text with source citations. Handles document ingestion, chunking, embeddings and vector search.