Leodegario Magsino Jr.
Leodegario Magsino Jr. · Mandaluyong, PH

Builds products with AI.

I build products people use every day. Fintech, healthtech, e-commerce — thirteen years of it, and now with AI.

3×
Founding Engineer
6
Startups
13+
Years Building Products
01
Products I’ve built

Six companies. Three of them from day one.

Lending, payments, care, commerce. The founding roles set the architecture; the rest shipped features people depend on.

02
Agentic engineering

The agents draft. AI reads every line. I merge.

Two open-source systems I run every working day, and two essays on what that day looks like.

03
Stack

What I build with.

StackBy layer
Backend
Ruby on Rails, Node.js, TypeScript, Java (Spring Boot), Python, Express.js, Go, Sinatra
Frontend & Mobile
React, Vue.js, React Native, Swift
Databases
PostgreSQL, MongoDB, MySQL, DynamoDB
Cloud & DevOps
AWS (Lambda, EC2, S3, RDS, CloudWatch), Docker, GitHub Actions
Observability
Sentry, New Relic, Datadog
AI & Agents
Claude Code, OpenAI Codex, Orca, GitHub Copilot, MCP servers (fast-mcp), Anthropic SDK
04
Education & certifications

Foundations.

FoundationsDegree & certs
B.S. Information Technology — De La Salle University–Dasmariñas
2009 – 2013 · Dean's Honor List AY 2012–2013
MongoDB Certified Associate Developer PCEP — Python Programmer Oracle Certified Professional, Java SE 7 IBM Certified Associate, DB2