Full-Stack Software Engineer — San José, Costa Rica

I build systems that move millions on launch day.

Six years shipping production web & mobile software across startups and enterprise — from nationwide platforms to 0→1 MVPs. I own architecture, lead small teams, and ship end to end.

Available for new work
$3M+
processed on launch day, day one
6+ yrs
shipping production web & mobile
0→100+
users grown from a fresh MVP
90%
manual ops work removed

Selected Work

6 projects

A nationwide platform to distribute, manage and analyze pharmaceutical sales offers across a three-tier hierarchy of area directors, regional managers and business development managers.

$3M+ in offers processed on its launch day
Architected budget allocation, permissions and business rules for a complex organizational tree
Operated in a high-ownership team that scaled from 4 to 2 and back
Stack
TypeScript
NestJS
TypeORM
GraphQL
SQL
AWS SQS/SNS
Redis
Playwright

About

I’m a full-stack engineer based in San José, Costa Rica. I specialize in TypeScript, React, React Native and Node, and I like the hard parts — architecture, complex business rules, and the edge cases nobody else wants.

I’ve grown from entry developer to a CTO’s right hand, led small high-ownership teams, and shipped systems trusted with millions on day one.

Education
B.S. Software Engineering — Costa Rica Institute of Technology (TEC)
5+ hackathons · 2nd place & best playability · pre-seed incubator invite
Certifications
AWS Certified Cloud Practitioner · 2024
AWS Cloud Technical Essentials, Coursera · 2024
Capabilities
Languages
TypeScript
JavaScript
Python
SQL
Frontend
React
Next.js
React Native
Apollo
MUI
Tailwind
Backend
Node.js
NestJS
Express
GraphQL
REST
TypeORM
Cloud & DevOps
AWS
Docker
CI/CD
PostgreSQL
DynamoDB
Redis
Let’s work together

Let’s build
something real.

© 2026 Emmanuel Pérez P. — San José, CR
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