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I’m Ángel Pérez, a full-stack product engineer with 7+ years of experience building and shipping web and mobile products across early-stage startups and established companies.

About

I’m Ángel Pérez, a full-stack product engineer with 7+ years of experience building and shipping web and mobile products across early-stage startups and established companies. I take products from idea to production, blending product thinking, design, and engineering to deliver high-quality experiences.

I’ve founded and scaled LetterMe from scratch to 6,000+ users, and I’m often the sole founding engineer on early teams. My core stack includes TypeScript, React, Next.js, React Native, Expo, Node.js, PostgreSQL, and AWS, and I enjoy building everything from MVPs and UI/UX to robust backends and real-time features.

  • 7 years' experience
  • Joined September 2026

Languages

  • Spanish; CastilianFluent
  • EnglishAdvanced

Industry experience

  • Software & Internet
  • Computers & Electronics
  • Media & Entertainment

Work experience· 5 roles

Full-Stack Product Engineer · LetteMeDec 2023 – Present · 3 yrs

Founded and built LetterMe from scratch, growing it to 6,000+ users. Owned the product end-to-end, covering product, design, and engineering responsibilities, from early shaping of the idea through production delivery.

Freelance Full-Stack Product EngineerSep 2021 – Present · 5 yrs 3 mos

Worked directly with founders to turn turnaround ideas into production-ready web and mobile products. Scoped, designed, and built MVPs across product, UI/UX, frontend, and backend.

Frontend and Mobile Software Engineer · Angle AudioMay 2021 – Sep 2021 · 5 mos

Built real-time audio and communication features across Flutter and Next.js. Integrated Agora, PubNub, Stream Chat, and native iOS/Android calling by consuming calling APIs.

Mobile Software Engineer · Zurich Technology Delivery CenterJan 2021 – May 2021 · 5 mos
Mobile Software Engineer · Nido / Friend TheoryFeb 2019 – Jul 2020 · 1 yr 6 mos

Education

Business Administration · Universidad Nebrija2018 – 2019

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