Curriculum vitae / October 2026

David Hernández / Rojo

Software Engineer & Product Designer · Mexico City

I connect product thinking with implementation: frontend and full-stack engineering, AI-powered creative tools, and independently shipped native applications.

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Experience

Different teams.
A shared way of working.

Several startup roles overlapped. These are distinct product and employment identities, rather than a sequence of unrelated full-time jobs.

  1. Lyft

    October 2024 — Present

    Software Engineer

    I lead frontend initiatives and contribute across the stack on Lyft Business, collaborating with designers, product managers, and engineers.

  2. Musho AI

    September 2023 — September 2024

    Co-creator and Dev

    Co-created an AI design assistant in Figma, contributing software engineering and collaborating with designers on the product experience.

  3. Lummi

    November 2023 — September 2024

    Software Engineer

    Worked on engineering for an AI-curated image discovery product, participating in design discussions and interaction refinement with the team.

  4. Bueno

    November 2022 — September 2024

    Dev and Community

    Developed frontend experiences for creative web3 tools, including Buenoverse, with product collaboration and improvements informed by the community.

  5. Humankind

    March 2022 — April 2024

    Frontend Developer

    Built interactive web experiences and games, with attention to visual fidelity and the details of how each interaction feels.

  6. BBVA

    February 2022 — November 2022

    Product Designer Trainee

    Worked on digital product interfaces, usability, and user experience in collaboration with engineering teams.

  7. Berrinche Studio

    November 2020 — November 2022

    Co-founder and Engineer

    Co-founded a studio designing and developing websites and e-commerce experiences for small and medium-sized businesses.

Independent products

Mini Briefs — news summaries, reading, and audio on web and iOS.
Dine — native iOS personal and shared finances.

I define product direction and behavior, use AI coding agents extensively for design and implementation, and refine the experience through iteration.

Education

Tecnológico de Monterrey · 2020
Bachelor’s degree in Industrial Design
Specialization in Technological Product Design

Areas of work

Product and interaction design · Frontend and full-stack engineering · React & TypeScript · AI-powered creative experiences · Native iOS products · Technical specifications and engineering review · Cross-functional collaboration