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Luis Castro memoji

About me

I’m an experienced web and mobile developer based in Andorra. I’m currently building Digg’s mobile app, where you can share and discover the best of the internet, and beyond.

I love working in the realm between design and code. Some things that makes me excited are JavaScript frameworks (yeah), CSS, Design Systems, Animation, crafting excellent component APIs and making interfaces feel fun and personal.

Since 2012, I have collaborated with multiple start-ups around the world and contributed to their success by delivering reliable and timely code to expand and improve their product offerings. Companies like Digg , Cameo , Freenow , RealScout and Debt Collective .

The products I've helped build have reached millions of people around the globe, from ride-hailing platforms to celebrity marketplaces to content discovery apps. I thrive in fast-moving teams where design quality and engineering rigor go hand in hand, and I bring a track record of shipping products that users love and businesses rely on.

Want to get in touch? Feel free to send me an email.

Work

  1. Principal Engineer

    Jan 2025 – Mar 2026
    Digg, Inc

    Led architecture and development of a greenfield iOS/Android mobile platform with React Native and Expo, delivering the company's first production mobile product. Defined mobile engineering standards, built CI/CD pipelines for releases, and maintained 4.8+ app store ratings.

    Digg mobile app screenshot 1Digg mobile app screenshot 2Digg mobile app screenshot 3Digg mobile app screenshot 4Digg mobile app screenshot 5Digg mobile app screenshot 6Digg mobile app screenshot 7Digg mobile app screenshot 8

  2. Staff Engineer

    Aug 2021 – Dec 2024
    Cameo

    Designed social media integrations that drove a 55% increase in year-over-year bookings. Led a React Native refactor that elevated the app rating from 2.5 to 4.9 stars, and optimized web performance to boost mobile impressions by 150% daily.

    Cameo mobile app screenshot 1Cameo mobile app screenshot 2Cameo mobile app screenshot 3

  3. Front-end Chapter Lead

    Feb 2018 – Jun 2019
    FreeNOW (formerly MyTaxi)

    Directed 8+ developers while standardizing design systems. Architected B2C tools that scaled clientele from zero to 200+ global customers and championed Test Driven Development, enhancing team productivity by 1.7x.

  4. Full Stack Developer

    Jan 2015 – Dec 2017
    RealScout

    Built buyer tools that increased listing decisions by 10x and empowered Realtors with platform integrations that doubled conversion rates. Established the product style guide for consistency across offerings.

  5. Full Stack Developer

    Jun 2012 – Oct 2014
    HashLabs LLC

    Managed multiple concurrent projects with teams of 3+ per project. Led front-end development of 20 projects, achieving 10–15% conversion rate increases, and improved user experiences with HTML5/CSS3/JS animations.