Software Engineer

I turn product ideas into reliable software.

Frontend-led Software Engineer shipping product experiences, backend integrations, and cloud systems from idea to production.

Portrait of Cristhian Martinez

Selected work.

Products framed through the problem, the engineering decisions, and the result.

AI-enabled product

Color Genius AI

A color system that turns natural-language direction into accessible, production-ready palettes.

  • Next.js
  • TypeScript
  • React
  • Supabase
  • PostgreSQL
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Additional work is being documented as focused engineering case studies.

View all documented work →

Experience, in brief.

Frontend ownership, full-stack delivery, backend performance, and cloud operations across four product teams.

  1. Dec 2025 - Present

    Vana

    Frontend Engineer

    Own frontend architecture and feature delivery for a fintech product across access control, card flows, API integration, and mobile-browser edge cases.

    Guatemala / Remote

  2. Jan 2025 - Aug 2025

    Acklen Avenue

    Full-stack Developer

    Shipped React product flows, Braintree payment integrations, AWS observability, and a secure React Native image-processing workflow.

    Nashville / Remote

  3. Jul 2024 - Dec 2024

    CDE Mipyme

    Backend Web Developer

    Improved NestJS document generation and PostgreSQL query performance while delivering platform features and supporting system migrations.

    Tegucigalpa, Honduras

  4. Oct 2022 - Apr 2023

    Applaudo

    Java Trainee

    Built and secured a Spring Boot commerce API with Keycloak, tested through JUnit and Mockito with continuous integration.

    San Salvador / Remote

Where the work is heading.

A frontend foundation expanding into product decisions, AI-enabled development, infrastructure, and system design.

  • Product engineering
  • Frontend architecture
  • AI-assisted development
  • Cloud infrastructure
  • System design