Hasan Javed
Senior Full-Stack & AI Engineer
hasanjaved.me·hasanjaved065@gmail.com·+45 36 96 07 42·linkedin.com/in/hasan-javed-ai·github.com/timur-ul-hasan·Remote · EU / US time zones
Summary
Senior full-stack and AI engineer with eight-plus years across healthcare RCM, fintech, compliance, and high-throughput systems. Python, Go, Rust, TypeScript. Works end-to-end — architecture, implementation, infrastructure, and ops. Open to senior / staff full-time roles and selective contracts.
Experience
Artificial Intelligence Engineer · AR Proactive
- Build AI / ML features into a healthcare RCM SaaS — claim denial prediction, reimbursement forecasting, collection prioritization — contributing to a 20%+ reimbursement lift over manual baselines.
- Shipped, end-to-end: a $80M-notional Rust + FastAPI order router (38 ms p99 risk gate) and a 1.2 M tool-call/day multi-LLM agent runtime (99.6% structured-output validity).
- Stack: Python, FastAPI, Postgres, Redis, AWS; LightGBM + LLMs (OpenAI, Anthropic, Gemini) for feature engineering.
Lead AI Developer · hads
- Led engineering team; set technical direction, mentored, partnered with product and design on a quarterly cadence.
- Architected scalable web apps in Nest.js, Python / Django, React; ran AWS infrastructure end-to-end and instituted CI/CD, testing, security, and reliability practices.
- Delivered a 200 M-row Parquet + DuckDB reporting layer (7.2 s → 420 ms p95) and a Go + Temporal sync engine unifying four accounting SaaS providers.
System Fintech Engineer · One-Compliance
- Full-stack fintech and compliance engineering: HTML / CSS / JS on the front end; Python, PHP, Node.js on the back end.
- Designed and maintained compliance-focused software; drove reliability, monitoring, and operational-efficiency improvements.
Full Stack Engineer · Histone Solutions
- Early-career full-stack work across Python, React, and first-generation ML features; shipped end-to-end in a small team.
Education
MS, Artificial Intelligence · Air University, Islamabad, Pakistan
BS (Hons), Computer Software Engineering · University of Gujrat, Gujrat, Pakistan · Grade: B+
Skills
- Languages
- Python · Go · Rust · TypeScript · SQL
- Backend
- FastAPI · Django · gRPC · Postgres · Redis · Temporal.io · event sourcing
- Frontend
- React · Next.js · Tailwind CSS · TypeScript
- Data · ML
- PyArrow · DuckDB · Parquet · pgvector · LightGBM · PyTorch · Pandas · Polars
- AI · LLM
- OpenAI · Anthropic · Gemini · Grok · local Llama · Pydantic schemas · structured output · evals
- Cloud · Infra
- AWS (Lambda, ECS / EKS, RDS, S3, AppSync) · Cloudflare Workers · Vercel · fly.io · GitHub Actions
- Fintech
- Stripe · Plaid · TradingView · Alpaca · Interactive Brokers · Binance · MetaTrader 5
- Quant · Trading
- NautilusTrader · Backtrader · Zipline · QuantConnect LEAN · walk-forward analysis · Kelly sizing