About Me

I'm Johnny Fekete, a product engineer, two-time startup founder, and tech educator based in Barcelona, Spain, working with teams and clients globally. I've spent more than 15 years turning ambitious ideas into production systems, from early-stage MVPs to platforms serving millions of daily page views.

What I do

I currently work at Reddit, where I build Profile features used by millions of people every day, ship company-wide tooling, and mentor junior developers. Before that I spent years as an independent contractor and founder across HR tech, healthcare, and blockchain. My day-to-day stack is React, TypeScript, Web Components, Node.js, PHP, Laravel, Go, GraphQL, Postgres, Redis, and AWS, and I have a particular soft spot for browser extensions.

I've founded two companies. Bonboarding (2021–2025) was a bootstrapped solo venture: a platform that let product teams build interactive onboarding walkthroughs without developers. It reached 100+ B2B customers and served over 300,000 product tours to their end users, and it got into the AWS Loft Accelerator. I eventually made the hard call to close it down, which taught me more than a clean success would have. Before that I co-founded Recruitio (2016–2020) in Denmark as CTO, built the talent sourcing platform remotely from Barcelona, grew a distributed engineering team, and exited to investors.

Teaching and speaking

Helping other people level up is the part of this work I enjoy most. I speak at conferences — React Summit US, TechLead Conference, the Toptal Global Talent Conference, and most recently the Claude Meetup for Builders in Barcelona — write technical tutorials, publish a free course on building browser extensions, and offer free mentoring sessions through GitNation. I also write regularly on my Substack and make videos on YouTube about building products, solo founding, and staying sane while doing it.

Away from the keyboard

I train and work as an actor. It started with improv classes for fun, turned into intensive workshops, then a year and a half of professional training in the Chubbuck technique, and now short films. It has made me a better speaker and a more honest one.

Working together

I'm open to speaking invitations, technical advisory work, collaborations, and conversations with people building something interesting. The fastest way to reach me is email: hello@johnnyfekete.com. You can also find me on LinkedIn, GitHub, and X.

More detail lives on the role pages: Product Engineer, Founder, Educator, Creator, and Actor.