About

Engineer by craft, builder by instinct.

Biography

I'm Fernando — a Full Stack Engineer based in Durango, México. Over the past 5+ years I've built products end-to-end: from data models and API design to UI implementation and production deployment. Mostly TypeScript on both sides of the stack, with a growing appetite for Python and FastAPI on the backend.

I work best on small, fast teams where I can own features completely — understand the why, design the solution, ship it, and measure what changed. I'm not interested in moving tickets. I'm interested in moving metrics.

Boring infrastructure, interesting problems. Ships over hype. If the team cares about craft and speed in equal measure, I'm probably a good fit.

Work Experience

Experience

  1. 2023 — Present

    Remote · Full-time

    Senior Full Stack Engineer

    Helio Technologies

    Leading full-stack development of an internal analytics platform used by 50+ financial analysts. Rebuilt the reporting pipeline from legacy Excel workflows to a real-time dashboard — cutting report generation time by 97%.

    • Designed and shipped a WebSocket-based real-time dashboard (Next.js + FastAPI)
    • Architected PostgreSQL RLS-based data isolation for compliance requirements
    • Reduced API p95 latency from 2.8s to 180ms via query optimization and Redis caching
    Next.jsTypeScriptFastAPIPostgreSQLRedisDocker

  2. 2022 — 2023

    Remote · Full-time

    Full Stack Engineer

    Nexara Digital

    Core engineer on a multi-vendor e-commerce platform targeting the LATAM market. Owned the payment integration layer (MercadoPago + Stripe), vendor dashboard, and multi-party payout system. Platform processed $2.4M GMV in its first year.

    • Built payment orchestration for multi-party splits, escrow, and automated refunds
    • Implemented PostgreSQL multi-tenancy via schema isolation for 1,800+ vendors
    • Designed optimistic UI pattern reducing catalog upload time from 12 min to under 60 sec
    ReactNode.jsPostgreSQLRedisStripeMercadoPagoDocker

  3. 2020 — 2022

    Durango, MX · Hybrid

    Frontend Developer

    CreativeStack Agency

    Frontend developer for a 12-person agency delivering web projects for SMB clients across Mexico and the US. Progressed from junior to leading frontend on 3-person project teams within 14 months.

    • Shipped 14 client projects in React and Next.js, from e-commerce to SaaS tools
    • Introduced component-based design system that cut frontend development time by 30%
    • Mentored 2 junior developers joining the team in 2021
    ReactNext.jsTypeScriptCSSFigma
Education

B.S. Computer Science

Instituto Tecnológico de Durango

2019 — 2023

Tech Stack

Frontend

  • TypeScript
  • React
  • Next.js
  • Astro
  • CSS (no frameworks)

Backend

  • Node.js
  • FastAPI
  • REST APIs
  • PostgreSQL
  • Redis

DevOps

  • Docker
  • GitHub Actions
  • Linux
  • Nginx
  • CI/CD pipelines

Practices

  • Clean Code
  • Semantic HTML
  • Accessibility
  • Performance

How I Work

  • Async-first. I write things down so teammates don't have to ask twice.
  • I've worked fully remote for 3 years. Clear written communication is a skill I take seriously.
  • Opinionated but not precious. I'll defend a decision, and I'll drop it fast when I'm wrong.
  • I prefer to ship something imperfect and iterate over planning forever.
  • I read postmortems recreationally. Understanding failure modes is as important as understanding how things work.
Let's work together