Alex Angeles

I build and ship full-stack features with Next.js and Node.js, most recently for a peer-to-peer marketplace with thousands of active listings. At Brocsoft Austin (remote), I optimize database access to tackle N+1 query problems, speed up pages by reducing redundant calls and improving render performance, and use Claude Code in a spec-driven workflow to ship with fewer defects.

Before that, I led frontend work across ecommerce and healthcare platforms at Auna in Lima, improving web performance by 30% and strengthening reliability through unit, integration, and E2E testing with Jest, React Testing Library, MSW, and Playwright. I also built reusable component systems with Tailwind CSS and Storybook, and supported dynamic API interface generation for Nest.js REST plus GraphQL via Apollo Client.

Now I’m focused on LLM apps end to end—RAG pipelines, grounding and citation, retrieval evaluation with LLM-as-judge, and multi-agent systems with LangGraph. My grounded RAG project (Guitar Digest) includes ingest/digest/ask workflows with rate limits and spending caps, and it scored 100% on a 29-question evaluation.