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Work

Production AI systems, each with the numbers that changed. Open one to see how.

Making an LLM career agent shorter, cheaper and bilingual for Kenyan job seekers

Tabiya (Compass Kenya)

Python / FastAPI / TypeScript / React / Gemini 2.5 Flash / MongoDB / GCP / Pulumi

70 turns to ≤35 turns worst-case conversation
How I cut a FinTech's OpenAI bill by 92% without slowing it down

Series B FinTech SaaS

Python / FastAPI / Redis / OpenAI / Hugging Face / vLLM

$60k/mo to $4.8k/mo OpenAI spend
Real-time theft detection across 50+ retail camera streams on unreliable power and internet

Nigerian retail chain

Python / FastAPI / OpenCV / YOLO / Redis / PostgreSQL / Docker

2-48 hours to under 30s to detect an incident
Hybrid semantic search over 1M+ legal documents with sub-100ms p99 latency

Legal tech startup

Python / FastAPI / Qdrant / Sentence Transformers / Elasticsearch / PostgreSQL / Redis

18 min to 6 min to find a case

Things I've built

My own products and experiments, outside client work.

GrindProof
Product

An AI accountability app. Plan the day in the morning, mark what got done in the evening, and get a weekly AI roast for the gap.

Next.js / Supabase / tRPC / Gemini / MCP / Expo
grindproof.co
Café Fausse
Fast build

A full restaurant site in 2-4 hours of hands-on work with Claude Code: menu, gallery, online reservations with table availability, a newsletter and a password-protected staff view, backed by an API with 49 tests.

React / Flask / SQLAlchemy / Postgres
Try it
Vibe coding platform
Side project

Type a prompt and an agent builds and previews a full-stack app. Built on Vercel's open-source vibe coding template, with Trigger.dev and E2B added as the sandbox execution layer.

Next.js / AI SDK / Trigger.dev / E2B
Try it
o-agent-core
Open source

A minimal, readable AI agent in Python. Give it a goal and get the answer plus a step-by-step trace of every tool call. MIT licensed.

Python / FastAPI / OpenAI
GitHub
PixelAI
Side project

An AI thumbnail generator across five image providers, with per-user daily quotas, cloud storage and generation history.

Next.js / AI SDK / Firebase / Vercel Blob
Try it
TripSplit
Side project

Splits group travel costs from a shared link, no accounts. Money is stored as integers and the balance maths is unit-tested to always sum to zero.

Next.js / TypeScript / Drizzle / Postgres
Try it

Want results like these?

A 30-minute call to look at what you're building and whether I can help.

Book a call or email alfredemmanuelinyang@gmail.com