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I offer guidance to startups on building products that delight their customers.

First results within 30 days.

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90% of startups fail…

no market need ran out of cash wrong team outcompeted pricing/cost issues poor product product without business model poor marketing ignored customers product mis-timed lost focus

That doesn’t have to be!

Life’s too short to build something nobody wants.

I help startups build impactful products & teams

by listening to customers, experimenting, and delivering value fast

Do you need to ship features faster to reach your goals for the next funding round?

Do you want to build up a product or tech team from scratch or skill up your existing teams?

Do you struggle to achieve product-market fit?

Do you need an honest assessment of your products, product teams, and product processes?

Does your startup struggle to deal with hyper-growth? Do you want to launch a new product but lack resources?

Do you need senior guidance and coaching for your teams?

What can I help you with?

Interim Product Management

Depending on the maturity of your product teams I can help your startup hands-on or lead your existing teams.

Product Due Diligence & Turnaround

We put your products, processes, and teams to the acid test and define actions for potential improvements.

Product Training & Coaching

Train and upskill your team of product managers and UX/UI designers in product discovery and delivery.

I coach product managers and leaders to help them get even better in their roles.

Product & Tech Hiring

Let me help you find talented product managers for your company, no matter if you are looking for Juniors, experienced product leaders, or your future CPO.

I can set up high-performing near-shoring tech teams for your organization fast.

Why work with me?

Product Expertise

10+ years in product management.


Experienced manager & coach of product and tech teams.

Tech Expertise

Advanced tech skills and know-how.

Startup Expertise

Launched 20+ startups in various industries.

My Product Toolkit

Product Discovery

  Problem Research
  Prototyping & Experiments

Product Planning & Delivery

  Vision, Strategy, and OKRs
  Roadmap, Scoping & Prioritization
  Tech Challenges & Technology Choices
  Metrics & Growth

Teams & Organisation

  Due Diligence
  Team Alignment
  Coaching & Training

Meet Stefan

Product & Digital Leader in fast-growing firms for 10+ years.

Launched 20+ customer-centered startups in various industries such as FinTech (LaraPay, MyHomely), Digital Health (OllyHealth), PropTech (Zenmieter), and eCommerce (MIACAR).

An experienced leader of product and tech teams that discover and deliver great products.

Profound tech expertise; built dedicated near-shoring tech teams as interim CTO.

A proud fellow passenger in two of the fastest-growing startups in Germany (Finanzcheck, Stryber), scaling teams, products, and processes.

Product Management Venture Building Fundraising Founder Hiring Leadership Business Modelling

Hiker & Cyclist. Traveler. Delicious Food Addict. Tennis Enthusiast.


from former direct reports, management peers, and clients

Stefan knows a lot about tech and is naturally user oriented. I really admire that. Always has an easy answer for every problem.

Stefan has both, tech and product superpowers. I can ask/share with him any idea or proposal, and he always has something good to add from his bag of experience.

I like his honesty, that he is very hands-off as a manager but acts as a great guide and understands my personality extremely well despite only working with me for a short time. Also, I think his enthusiasm, guidance and leadership within our company is really impressive.

Stefan is always willing to help and never happened that he couldn’t really solve anything. It is incredible!

I continue enjoying a lot having you as my Manager. I highly appreciate your technical background, your hustling, the fact that we can openly talk about the company/projects, that you recognize my strengths time by time.

I like working with Stefan, as he brings a calm and rational view to many aspects which I think is helpful. Additionally, he really knows the product area very well when it comes to best practices and how to launch ventures very lean, which is immensely helpful.

Let’s make ideas happen and
– build impactful products together!

Get in touch