iph22
Remote: Yes
Willing to relocate: Open to it
Technologies: TypeScript, React, Next.js, Node, Python, FastAPI, PostgreSQL (Supabase, pgvector), Redis, LLM APIs (Claude, Gemini), embeddings/RAG, Vercel, Fly.io, GitHub Actions
Résumé/CV: https://drive.google.com/file/d/1UKN9Lw5lL34NNxoQtCzOxVTa3jt...
Email: [email protected]
Portfolio: https://www.davidiphy.dev
GitHub: https://github.com/Iph22
Full-stack engineer and CS student at the University of Ghana. I built and run Arcyn Find (https://arcynfind.com), a live AI-tool search engine with 15,500+ tools, 5,900+ SEO pages and a 15-language interface, from first commit to production in under a year.
A few things I've shipped there:
- Hybrid vector + full-text search with LLM re-ranking, raising top-1 recommendation accuracy from 62% to 81% on a labelled eval set.
- Traced a duplicate-ingest bug (94% of 273k rows were duplicates) to one misplaced .limit() and safely removed 257,956 rows.
- Rewrote a job that failed 40 runs out of 40 as one set-based SQL function that finishes in 733 ms.
- Fixed an SSRF hole and spoofable rate limiting, then added Redis rate limiting after a ~28,000-request bot flood.
I also co-founded Analify (https://analify.fly.dev), a cookieless analytics product in private beta, with one co-founder. I built its AI features, crawlers and traffic filtering.
Looking for a junior or mid-level full-stack or AI engineering role on a team where I can own features end-to-end. Happy to do a take-home or walk through any of the code.