01Working prototype
My Potential
An academic-guidance product that connects questionnaires to a catalogue of university degrees and vocational programmes, then generates a tailored report with AI and RAG.
AI workflowView project
Product, full stack, and applied AI
Fran BarahonaProduct Engineer
I build web products end to end. At Webel I am responsible for the web department; before that, I built a complete Rails product for students, employers, and universities. I work with React, TypeScript, and Ruby on Rails, close to Product and accountable for architecture, delivery, and maintenance.
I code with agents extensively. I frame their work with specifications, project context, reusable skills, tests, and reviews. Architecture, shipped code, and the final outcome remain my responsibility.
AI-assisted development flow
- Problem
- Specification
- Context and rules
- Implementation
- Tests and review
At a glance
End-to-end product work while staying close to the code
I have spent nearly six years building products at startups and scale-ups, from data modelling and backend work through to interfaces and production.
I am responsible for Webel's web department. At AuroraJobs I led product development within a four-person tech team and built its full-stack Rails application.
I use agents every day to implement more and ship more often. I provide context and constraints, then review the code, tests, and architecture decisions.
Professional experience
Webel and AuroraJobs
A compact timeline of scope, stack, and responsibility. Each case holds the underlying problems, decisions, and outcomes.
Webel
Lead Frontend Engineer
I am responsible for Webel's web department: the B2C app, B2B platform, internal dashboard, SEO, email, and the shared component library.
AuroraJobs
Full-Stack Software Engineer
I built the full-stack Rails application and led product development: splitting work, reviewing pull requests, and mentoring within a four-person tech team.
Side projects
Lab
Products and prototypes I build on my own initiative. My Potential brings product work, full-stack engineering, applied AI, RAG, and privacy decisions into one case.
02Prototype
Postgram
Prototype for digital postcards tied to a place. Whoever receives the photo and the message has to go there to open them.
ProductView project
03Published
Fountly
A map for finding nearby drinking fountains. It combines OpenStreetMap with local public data where that exists.
ArchitectureView project
Contact
Let's talk
If you are considering my profile for a product team, tell me about the role and the problem you need that person to solve.
Roles and hiring
Product Engineer, Software Engineer, or full-stack roles where engineers help define the problem and scope as well as implement the solution.
Write about a roleProjects and consulting
I can also discuss projects that need shaping or products that have become difficult to maintain.
Write about a project
You can also find me on
LinkedIn(Opens on another site)GitHub(Opens on another site)