Jobs

Work at
Kuberdon.

Kuberdon is a small studio in Leuven, building iPhone apps for everyday life. Today the team is Jensen, the founder. When we open a role, you find it below, with the work, what we hope for after 90 days and how to apply.

What to expect
when you join.

How we work

  • Remote, on Brussels time

    Work from where you like, within an hour of Brussels time either way.

  • Next to the founder

    You work with Jensen directly, on the real decisions, with nobody in between.

  • People before code

    We find out what people want before we build it, by talking to them and testing small.

  • No rush to hire

    We would rather wait for a great match than fill a seat. Write whenever you are ready.

Open
positions.

1 open

Founder’s Associate, Product-Market Fit

  • Remote, Brussels time (up to 1 hour either way)
  • 20 to 30 hours a week to start
  • 1 to 2 years
  • Paid

You want to start a company of your own one day, and you want to see first how the early months really go. For 1 to 2 years you work next to Jensen, the founder, on finding out what people want and getting Kalendars to the point where they keep using it. You do the research, talk to users, run small tests and help hustle for every early user, and you get paid while you learn it. Most likely you leave after that to start your own thing, and that is fine with us.

What you’ll spend your days on

  • Dig through Reddit, X, App Store reviews, forums and Discord to find what frustrates people about the apps they use.
  • Find early users, bring them in, and stay in touch with them.
  • Book and run user interviews with Jensen, take notes, and turn them into clear calls on what people want and what they don’t care about.
  • Test ideas fast: landing page copy, fake-door tests, small surveys.
  • Help hustle for the first users through waiting lists, a tester group and the weekly update.
  • Write a short weekly report: what we learned, who we talked to, what to build and what to drop.
  • Sit with Jensen on the product calls, and hear why each one goes the way it does.

After 90 days, good looks like

  1. 30+

    conversations with real people, held and written up.

  2. 100+

    engaged early users of Kalendars who talk to us.

  3. 1

    product decision, at least, that changed because of what you found.

You’re a fit if this is you

  • You want to start something yourself one day, and you would like to learn the first steps next to someone who has done it.
  • You love talking to strangers and asking “why?” five times.
  • You live in Reddit or other online communities, and you know the unwritten rules. You never spam.
  • You write clearly and briefly in English. Dutch is a bonus.
  • You take initiative, you are fine with a bit of chaos, and you would rather test an idea this week than discuss it for a month.
  • You use AI tools like Claude to work faster.

Nice to have: customer research, UX research or early growth work for a consumer app, or a community you built from zero.

Your email answers two questions

  1. 1. What would you like to start one day? A rough idea is fine.
  2. 2. Name one subreddit where people complain about calendars or making plans, and what they are saying.
Apply by email

How to apply

Send us 150 words.

Write to [email protected] with the role in the subject, and answer its two questions in under 150 words. There is no form, and no CV needed to start.

Jensen reads every email himself. We talk about pay on the first call.

Email [email protected]