Lead Full Stack Engineer · Remote from Zaragoza, Spain

Adrian Reyes

I build products end to end: native and React Native apps, the backends behind them, and the cloud platforms that keep them running. Ten years in, most recently leading platform and ML work at Paired.

Open to remote roles · Lead or Senior · mobile, backend, full stack or ML

About

I am a full stack engineer with over ten years of experience in product companies and consultancies, owning features from the first screen to the last deploy. I have shipped iOS and Android apps, built the APIs and data pipelines behind them, and run them on Google Cloud and Azure.

At Paired I moved from the mobile team to leading platform and ML initiatives, which taught me that the best infrastructure is the kind the rest of the team never has to think about. I care about observability, boring reliable deploys, and giving engineers room to do good work. Outside work I build and ship my own apps, which keeps my mobile skills honest.

Skills

Mobile

  • Swift
  • SwiftUI
  • Kotlin
  • React Native
  • WidgetKit & Live Activities
  • ARKit
  • App Store releases & fastlane

Backend

  • TypeScript
  • Node.js
  • Python
  • Go
  • PostgreSQL
  • Redis
  • REST APIs

Cloud & Infrastructure

  • Google Cloud
  • Azure
  • Kubernetes
  • Docker
  • Terraform
  • GitHub Actions

ML & Data

  • TensorFlow
  • Apache Beam
  • Recommendation systems

How I work

  • Observability first
  • Mentoring
  • XP practices
  • Direct contact with product & clients

Experience

Building software professionally since 2015.

Jan 2024 - Oct 2026 · Remote

Lead Software Engineer - Paired

Led platform and ML initiatives for a consumer app used by couples worldwide. Owned the personalised recommendation system end to end, from data pipelines and training to a low-latency inference service on Google Cloud, and acted as tech lead for cross-functional projects spanning native features, backend and GenAI integrations.

  • TypeScript
  • Node.js
  • Python
  • Go
  • Swift
  • Kotlin
  • React Native
  • Google Cloud

Mar 2022 - Dec 2023 · Remote

Mobile Engineer - Paired

Joined as one of the first mobile engineers in a scaling startup. Helped define the React Native architecture and engineering standards, then moved into full stack work delivering features across the app and its backend.

  • React Native
  • TypeScript
  • Node.js
  • Google Cloud

Feb 2019 - Feb 2022 · Zaragoza

Full Stack Developer - Plain Concepts

Consultancy work for enterprise clients: large single-page applications, back-office systems and deploying TensorFlow models to production. Often the only engineer on a project, working directly with the client.

  • .NET
  • Node.js
  • React
  • Vue
  • TypeScript
  • Azure
  • Kubernetes

Jan 2018 - Jan 2019 · Zaragoza

Software Developer - adidas

Content and product management platform. Built and maintained enterprise CMS integrations and APIs.

  • Java
  • .NET
  • SDL Tridion

May 2017 - Dec 2017 · Zaragoza

Lead Developer - Building Blocks (part of Dept)

Led a remote team delivering CMS-based web solutions for adidas, who hired me directly afterwards.

  • Java
  • Spring MVC
  • SDL Tridion

Aug 2015 - Apr 2017 · Zaragoza

Junior roles - Acnovate · Building Blocks UK

Junior Programmer Analyst at Acnovate and Junior Web Developer at Building Blocks UK. Java and .NET web apps, REST APIs and microservices.

  • Java
  • .NET
  • REST APIs

Education

BSc Computer Science - Universidad de Zaragoza

Projects

Things I build and ship on my own time. Mostly useful, everyday tools.

Ebro Bus

iOS app

Real-time bus arrivals for Zaragoza from the city's open data. Home, map, favourites, Live Activities and Dynamic Island.

  • Swift
  • SwiftUI
  • WidgetKit
  • ActivityKit
  • MapKit

Orvex

iOS app Coming to the App Store

Point your phone at the sky to find constellations and planets. Built because every app I tried was paid or full of ads: Orvex is free, with no ads and no data collection. Camera-assisted star alignment on ARKit, planet positions computed on device from JPL's published orbital elements, in English and Spanish.

  • Swift
  • SwiftUI
  • ARKit
  • RealityKit
  • CoreMotion

Holo Emotes

Web

Catalog of 2,700+ Hololive emotes across branches and generations. Browse by talent and batch-export packs for different platforms.

  • Astro
  • TypeScript

Contact

I am open to remote Lead or Senior roles in mobile, backend or full stack product teams, and to ML work where it ships to real users. Working from Zaragoza, Spain. LinkedIn is the fastest way to reach me.