Work with me

I'm Jon. I'm a product engineer with about twenty years of experience. I currently work at Lingokids on billing, pricing, and accounts.

I'm looking for a senior IC role where I own a domain end to end — not a coordination role, not a ticket factory, not a pair of hands.

What I'm looking for

• A scale-up or a consolidated product with real users.
• A small or medium team.
• A senior IC role with ownership of a domain.
• Remote within Europe, or Pamplona.
• Enough proximity to the problem to see it, and enough decision rights to do something about it.

What I'm not looking for

• A handoff role where product writes the spec, design designs, and I implement.
• A role that exists to save headcount.
• A title without a problem.

What I do

I own outcomes. The code is one of the consequences.

At Lingokids I unified four billing providers behind one API (~3k in-app purchases/day), shipped a self-serve pricing and offers tool used in ~150 countries, and built account merging that closed ~10k support tickets. Before that, I worked on card enrichment at Triple (150ms to under 60ms, 1,000+ requests per second) and the financial transaction layer at G.games (1M transactions/day).

The short version: I find the problem behind the request, decide what not to build, and stay for the measurement.

How I work

Four habits: start with the problem, ship small, make the system easy to own, and learn the domain well enough to challenge the request.

Read the longer version →

Proof

• CV · Download PDF
• How I work
• Product Developer: The Job Behind the Code
• AI and me

The practical bits

• Based in: Pamplona, Spain (CET/CEST).
• Remote: Yes, within Europe. I'm also happy to meet in person in Pamplona.
• Languages: I work in English and Spanish.
• Stack: TypeScript and React on the product side, Python/Java/Groovy where the service already lives, PostgreSQL, AWS/GCP, Docker and Kubernetes.
• Contract: I care more about the problem and the ownership than the label. Permanent or contract, we can figure out the shape.
• Availability: I'm open to conversations about the right role.

What to send me

If you're hiring, tell me:

• the problem you're trying to solve;
• the team and the constraints;
• what "done" looks like six months in.

Email me and tell me what's in the way.

If you're looking for a pair of hands, I'm not your person. If you have a product problem that needs someone who owns the outcome, let's talk.

Prefer the short version? Read the CV or download the PDF.