Full-stack engineer Jj
Mostly React and TypeScript, on products where the numbers have to add up. I work agent-first: I plan the work, run coding agents, and review everything they produce.
- Based in
- Cavite, Philippines
- in/jhtigcal
- hello@jhtigcal.dev
Experience
Six years, mostly React.
Concentrix CVG · Full-stack engineer
Build and maintain an internal survey platform, from the server to the editor.
Nov 2023 to now
Official title: Senior Analyst
Fluvi Ltd · Full-stack developer, part-time
Build an analytics product for Amazon sellers and agencies, front end to back end.
Nov 2022 to now
Spiralytics · Junior web developer
Built internal analytics tools and site tracking.
May 2022 to Mar 2023
Quizlet (then Slader) · Expert contributor
Wrote textbook solutions in math, physics, and computer science.
Jan 2021 to Feb 2022
Plexys Tech · Junior web developer, contract
Built frontend features for an IoT product.
Aug 2020 to Aug 2021
Asian Institute of Management · Junior data science intern
Prepared geospatial data for research.
Jun to Jul 2018
Skills
Favorites first. The rest, I can live with.
My stack
What I reach for on a new project.
TypeScript, Effect, React, TanStack Query and Router, Tailwind, Vite, PostgreSQL, Docker, Claude Code
Also worked with
At work, or because a project needed it.
- Languages
- JavaScript, Python
- Frontend
- Zustand, shadcn/ui, Mantine, TipTap, Lexical, SurveyJS, Zod, Foldkit
- Backend
- Node.js, Hono, Express, NestJS, Strapi, REST APIs
- Data
- MongoDB, Azure CosmosDB, Firebase Realtime Database
- Infrastructure
- Kubernetes, Azure DevOps, Pulumi, Caddy, Cloudflare
- AI tooling
- GitHub Copilot, Claude API
Education
I liked physics, but sitting in front of a computer paid more.
- 2020
- BS Applied Physics, University of the Philippines Los Baños