// product engineer · ai-native · 20 yrs · madrid

Build. Ship. Measure. Repeat with AI.

20 years shipping product on the web. Today I build and run whole products solo with AI agents, with the architecture, security and CI/CD discipline of a full team.

$ git log --oneline career2024ailylabs · senior react/react native developer2023independent · i design, build, ship and run products end to end with…202024i · react/react native developer developing native multi…2010viajes el corte inglés · front-end web developer and product manager. frontend…2008dnovae · frontend developer on multi-platform video distribution…… 3 more commits
20years building product
10years as Product Manager
2026three products shipped solo with AI agents

01Selected work

02How I work

One person, team-grade output. Every product I shipped in 2026 went through the same pipeline: AI agents write most of the code, I own the architecture, the review and the guardrails.

  1. spec
  2. architecture
  3. agents build
  4. review
  5. tests · lint · security
  6. ci/cd
  7. metrics
01 · spec & architecture

Decide before generating

Written spec, domain boundaries and architecture decision records before the first line of code. The agents work inside those limits, not around them.

02 · build with agents

Agents write, I review

Claude Code writes most of the code in small, reviewable PRs. Every diff gets the review a tech lead would give it: naming, data flow, edge cases, cost.

03 · guardrails

Security is not optional

Tests, lint and type checks on every commit. Secrets out of the repo, least-privilege access rules, threat review before launch. Fast does not mean careless.

04 · ship & operate

Production from day one

CI/CD with a preview per pull request, monitored deploys, analytics and error tracking from the first release. Then measure, learn and ship the next thing.

// proof: Koove, papaia and LotesOnline, 2026 · built this way, soloSee the products

03Experience

2024 - Present
AilylabsEmpowering Business With Meaningful AI

Senior React/React Native Developer

2023 - Present
IndependentProduct Engineer, AI-native

I design, build, ship and run products end to end with AI coding agents (Claude Code): architecture, security, testing, CI/CD and metrics. In 2026 I shipped Koove, papaia and LotesOnline this way, solo.

2020 - 2023
24iVideo Content Distribution

React/React Native Developer developing native multi device video apps using react and react native javascript framework

2010 - 2020
Viajes El Corte InglésTravel Agency

Front-end Web developer and Product Manager. Frontend developer using javascript framework and react. Cruise and Offers Product Manager with flow definition, wireframing, and project management responsibilities

2008 - 2010
DnovaeMulti-platform video distribution content

Frontend developer on Multi-platform video distribution content

2006 - 2008
WundermanMarketing Online agency

Frontend and Backend developer working with websites, microsites, online ads, and rich media ads

2005 - 2006
OartstudiosWeb Art Studio

Frontend and Backend developer creating websites for different clients

2004 - 2005
Grupo kapitalNight clubs

FullStack developer creating websites for different clubs, photo galleries, and online ticket stores

04Skills & technologies

$ cat skills.txt
AI-native product deliveryArchitectureSecurityCI/CDReactReact NativeProduct managementMobile developmentWeb developmentProject managementCreativityPrototypingAgile methodologiesUXUIDesign systemsCommunicationProblem solvingTeamworkTestingMobile app publishingMobile dependency managementMobile performance optimizationreact 2
$ cat technologies.txt
Claude CodeAI agentsReactReact NativeNext.jsNode.jsPHPMySQLAWSTypeScriptFirebaseGitPhotoshopFigmaAdobe XDExpoReduxJestFastlaneAndroid StudioXcodeREST APIsGraphQLStyled ComponentsESLintPrettierWeb3

05Education

  • Product Management Course at Stanford University
  • iOS 11 & Swift 4 - The Complete iOS App Development Bootcamp
  • Course object oriented programming in Flash, Actionscript Adobe Certified at Comprehensive Center Courses Expecializados CICE
  • Course Web development with javascript, html and css.
  • Associate Degree image and sound at the Institute Carlos Maria Rodriguez Balcarcel, Communication, Audio & completed in December 2000.
  • Higher education at hight school Dionisio Aguado de Fuenlabrada
// open to product engineering work · remote or madrid

Got a product that needs to reach production?

$ mail --to gus