Open to remote opportunities worldwide · updated July 2026
Gustavo
Hernández.
Lead Full-Stack Engineer — based in Costa Rica 🇨🇷, working with teams worldwide
I'm a lead full-stack engineer with 8+ years across fintech, real estate, pharma, marketing, semiconductors, and sports tech. Polyglot across TypeScript, JavaScript, and Python — at home in React, Node.js, FastAPI, and Django — and I build event-driven microservices on AWS and GCP. Right now I'm one of three founding engineers of Cheqpay's in-house payments platform, where I own the general ledger and multi-institution reconciliation.
What I do
Lead full-stack engineer — polyglot across TypeScript, JavaScript, and Python, at home in React, Node.js, FastAPI, and Django — known for taking deep, end-to-end ownership. Most recently one of three founding engineers of a fintech's in-house payments platform, co-architecting and building it to replace third-party processors; I own the general ledger and multi-institution reconciliation, having recovered $1.5M+ in lost payments. Across earlier roles I've owned product analytics and data-driven UX, an Elasticsearch-powered search system, a Twilio-based communication system, serverless AWS Lambda services, and AI/LLM backends — all built on event-driven microservices across AWS and GCP. I work best by talking through approaches, weighing the team's ideas, and adapting our flows to the resources we have — always pushing for high quality and software that genuinely helps the people using it.
Quick facts
- Base
- Costa Rica 🇨🇷 (remote)
- Current
- Cheqpay — payments platform
- Languages
- Spanish (Native) · English (Fluent)
- Notable
- $1.5M+ recovered
- Education
- Licenciatura in Computer Engineering, TEC
Daily drivers
TypeScriptJavaScriptPythonSQLReactNode.jsFastAPIPostgreSQLAWSKafka
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