Senior full-stack engineer

Software built for production.

I build React products, cloud systems, and production AI for distributed teams.

Portrait of Diego Romero
10+ years Building software products
Lima, Peru Remote, UTC-5
English + Spanish Distributed team experience

Experience across product and platform.

Athenaworks

Senior Full Stack Developer

Own features across React and TypeScript interfaces, Java APIs, Python and TypeScript services, SQL schemas, AWS infrastructure, and production AI integrations.

ResortPass

Software Engineer

Delivered responsive product features, API integrations, reusable frontend systems, and performance improvements for a high-traffic marketplace.

Globant

Software Designer

Built scalable React and Next.js interfaces with U.S. and EU teams, mentored engineers, and improved component architecture.

Independent and agency work

Belatrix, Upwork, 247 Labs

Built dashboards, Chrome extensions, finance tools, commerce sites, Angular apps, chat systems, and startup MVPs.

A practical full-stack toolkit.

Broad enough to own a feature end to end. Deepest in product interfaces, APIs, and AWS serverless systems.

Product interfaces

  • React and Next.js
  • TypeScript and JavaScript
  • Responsive UI
  • Performance optimization
  • Reusable component systems

Services and data

  • Java, Node.js, Python
  • REST APIs
  • PostgreSQL and MySQL
  • MongoDB
  • SAML SSO

Cloud systems

  • AWS Lambda and CDK
  • Amazon SQS
  • Amazon EventBridge
  • Amazon S3
  • Serverless workflows

Production practice

  • LLM integrations
  • Observability
  • Testing and CI
  • Structured validation
  • Retries and deduplication

Selected impact.

1M+ users

Improved homepage load speed for a site serving more than one million monthly users.

Production AI

Built LLM integrations with structured validation, logging, safeguards, retries, and deduplication.

Platform foundations

Built multi-tenant Chrome extensions and reusable SPA foundations for product teams.

Four continents

Delivered MVPs and production features for international startups across distributed teams.

Let’s work together.

Open to senior frontend, full-stack, React / Next.js, and AI-enabled product engineering roles.