Farrell Hauzan
Full-stack engineer. AI products on a backend & Web3 foundation: TypeScript, Python, Go, Rust, Solidity.
Based in Jakarta. Reviewing tasks that train and evaluate AI coding agents at AfterQuery Experts (YC W25). Previously at Mekari. Top Rated Plus on Upwork.
Now
- Reviewing tasks that train and evaluate AI coding agents at AfterQuery Experts (YC W25)
- Top Rated Plus on Upwork
- Reading, learning AI agents and evals
- Jakarta
Selected projects
Experience
- AfterQuery ExpertsAI Evaluation Engineer2025 — now
- MekariSoftware Engineer2024 — 2025
Migrated core backend from Ruby monolith to Go microservices for 15,000+ active businesses.
- Happy5Backend Engineer2022 — 2024
- ITHO IndostockBackend & Flutter Developer2022