A collection of projects I’ve worked on, from open source, digital products, to technology experiments. Each project is a learning opportunity and a contribution.
Also check out the services I offer on the Services page.
Digital Product / Research Platform
A zero-friction digital measurement and diagnostic suite for SMEs featuring 7 free assessment instruments, incremental adoption roadmaps, and anonymous longitudinal research data collection.
React 19TypeScriptTanStack StartTanStack RouterTailwind CSS v4Drizzle ORMPostgreSQLNitroDocker
7 Free SME Digital Assessment InstrumentsFull SSR, Streaming Recommendations & PrerenderLongitudinal Research Observatory (Zero-PII)
Client Project / Web Platform
A two-way digital ecosystem bridging Indonesian professional talent with Japanese industry via ICE Center ITB SSO integration, automated Japanese CV builder (Rirekisho), and two-way job matching.
ReactTypeScriptViteNode.jsExpressMySQLJWT/SSODocker
ICE Center ITB SSO integration (JWT RS256)Automated Japanese CV Builder (Rirekisho PDF)Two-Way Job Matching (Apply & Scout)
Freelance / Product
Management information system for sales, inventory, and maintenance of portable fire extinguishers (APAR), the first product of PT Akordium Digital Berkah.
LaravelLivewireAlpine.jsTailwind CSSMySQLRedis
Digitized entire APAR operationsUser-friendly for 4 admin usersComplete ERP-style workflow
Production System
Full-stack backend conversion of a GPS fleet tracking system from Laravel (PHP) to Go with MySQL (domain data) + PostgreSQL/TimescaleDB (location data), 370+ endpoints, 33 entities, clean architecture.
GoMySQLPostgreSQLTimescaleDBRabbitMQDocker
~194K LoC migrated370+ API endpointsAutomatic read/write split
Production System
Refactoring a marketing and data privacy compliance backend for European clients, increasing test coverage to 75% and reducing production bugs by 40%.
GoPostgreSQLREST APIDocker
75% test coverage40% fewer production bugsOn-schedule deployments