Your project, built together with a senior engineer.
Not lessons, not a curriculum. I join your project: we scope it, decide what ships first and build it together, so it holds up in production and you understand every line. Scoped to your project, at a fixed price agreed up front.
Rather learn at your own pace? See the self-paced courses →
Bob Belderbos · 150+ developers coached · 13 years at Sun Microsystems and Oracle · Pybites co‑founderWe build it together, on your code
I have an app to build.
We scope it, decide what ships first and build it. I work in the repo with you, so you understand every part.
My app was built with AI.
We go through it together: architecture, tests and the code the AI wrote. Then we fix what matters first.
I'm stuck on a technical decision.
We make the call together and you know why it's right, whether it's architecture, a tradeoff or what not to build.
I need a senior engineer for a few weeks.
I join your project: pairing, pull requests and the judgment calls, until it's in production.
What working together looks like
- Format: 4 to 12 weeks on your own project or codebase, shaped around what it needs
- Rhythm: working sessions on the decisions that matter (architecture, tradeoffs, what not to build), code we write together in your repo, PR reviews, and GitHub issues to plan between sessions
- Investment: from €1,000 incl. VAT. Weeks, hours and support depend on your project, so we scope them together on a call, and you get a fixed price up front. Company sponsoring it? I invoice them directly.
- To start: scope your project with ScopeFirst or book a call, then a written proposal with scope, timeline and price
Not ready for 1:1? Three self-paced courses give you the structured curriculum, from your first app to a deployed SaaS. See the courses →
This is for you if you're
- building a serious product or SaaS
- shipping an AI-built app that has to hold up in production
- a solo developer or small team without a senior Python engineer
- after working code in your repo, with the reasoning behind it
- stuck between a prototype and production
This isn't for you if
you want a set curriculum. The self-paced courses cover that. Here we work on your project and your goals, and you own the code when we're done.
Need a business process automated for your company? Same way of working, scoped as a consulting project. See consulting →
How we work
A simple loop, repeated on your real code.
- You bring the project.
- We scope it.
- We decide what ships first.
- We build it together.
- I review and harden it.
- You own the result.
What developers ship after working with me
Hello World → payroll SaaS
Ryan thought big from day one: his own payroll business. Three months after writing Hello World, a company ran its entire payroll on his app. “Seeing someone have that trust in something I built is surreal.” See thepayroll.app.
AI prototype → production
Luca could already get Claude to build features. The next step was learning to evaluate the architecture, challenge design decisions, and ship a SaaS with payments, settings and tests he could defend.
Developer → Senior AI Engineer
Piotr signed up wanting to write production-quality code and find more fulfilment in his work. Six years later he's a Senior AI Engineer and team coordinator: “both were in my plan, though I wasn’t sure I could do it.”
Not sure 1:1 is the right fit?
Tell me what you're building and where it's stuck. If a self-paced course gets you there for less, I'll tell you.
Prefer email? Drop me a line →
Prefer to learn on your own? See the self-paced courses. Training a team? See team programs. Automating a business process? See consulting.