HIMPSI-certified psychometric platform · 2025
About — the short version
Software engineer with 6 years on production backends in TypeScript, Node.js, and Python — now extending into the frontend on Next.js.
At Parallax, led the backend for three products from requirements to production — shaping requirements with PM/BD and running regular progress updates with the team.
// requirements → design → code → production.
Selected projects — 2023–2026(04 projects)
Projects.
Hospital medical imaging · DICOM · 2023
Onchain IP licensing · Story Protocol · 2024
Self-hosted CI/CD · solo · 2025–26
Experience
2020 — PresentJul 2025 — Present
Parallax
Fullstack Engineer
- Led the HIMPSI-certified psychometric platform from requirements to production — shaped requirements with PM and HIMPSI psychologists, designed the scoring data model and assessment engine, and ran regular progress updates with the team.
- Built the marketplace and document-signing flows for an onchain asset-financing platform, owning each feature from schema to UI.
- Initiated a cost-cutting project: moved staging from managed DigitalOcean services to a self-managed VPS with Docker and GitHub Actions CI/CD, cutting monthly staging spend by 94% ($200 → $12). Production stayed on managed infrastructure.
Jan 2023 — Jul 2025
Parallax
Backend Engineer
- Built and owned the backend for a medical imaging product — a daemon syncing DICOM studies from the hospital PACS into the app database, plus a service for structured reporting and export. Replaced a CD-based image handoff that capped throughput at 4–8 patients a day with direct transfer from MRI and X-ray machines to the doctor's screen.
- Designed and shipped the backend for an IP licensing platform on Story Protocol: the API, the data model, file storage, and distributed tracing — now managing 20+ major IPs, including Dagelan.
- Built the backend for Tokenomy, a multi-wallet DeFi dashboard — server-side wallet operations, wallet-provider integrations, and the data layer.
- Owned the framework and database choice for each product, matching the stack to the product's needs and standardizing validation across services.
Oct 2021 — Dec 2022
Bina Nusantara IT Division
Backend Developer
- Shipped ASP.NET Web API endpoints for the university's student portal and internal enterprise applications, serving 40,000+ students.
- Worked in an Agile/Scrum team: sprint planning, peer code review, and a Git-based release workflow.
Mar 2020 — Sep 2021
Bina Nusantara IT Division
Junior Backend Developer
- Built a Python and Selenium tool to sync student records with PDDIKTI, cutting an 8-hour manual reconciliation to under 30 minutes for batches of hundreds to thousands of records.
- Replaced ad-hoc SQL scripts with internal data-processing tools so the data center team could operate without writing raw queries.
By the numbers
Impact by the numbers
- 6
- years in production
- 3
- flagship products led
- −94%
- monthly staging spend
- 40k+
- students served
- 20+
- major IPs managed
(01)
TypeScript · Node.js · Python
(02)
HIMPSI · medical imaging · IP licensing
(03)
Parallax staging infra · $200 → $12
(04)
Binus student portal
(05)
IP Licensing Platform · incl. Dagelan
Stack
What I build with- Primary stack01
- TypeScript / Node.js
- Hono
- Next.js
- MongoDB
- Mongoose
- Also worked with02
- Python (Flask)
- C# (ASP.NET)
- NestJS
- Express
- PostgreSQL
- MySQL
- Redis
- Prisma
- Drizzle
- APIs03
- REST
- tRPC
- Zod validation
- Infrastructure04
- Docker
- Linux / VPS
- GitHub Actions CI/CD
- AWS S3
- BullMQ
- Socket.IO
- OpenTelemetry
- Practices05
- Code review
- System design
- Agile / Scrum