PRODUCT LEADER. BUILDER AT HEART.
I’m Lars. I build things that make possibility feel practical — from sharing the sky to software that thinks and acts.
A few things I’ve built
A builder’s perspective.01 / SELECTED WORK
From a blank page to a living product.
Always close to the problem, the people, and the work.
Today, I lead product for SaaS Management and Identity & Access Management at Deel, bringing the next chapter of Sastrify into a global platform.
The first phase is live: native SaaS Management serving hundreds of customers. With two teams, I’m pushing the product further while keeping the transition seamless for existing users.
The acquisition storyAs Head of Product, I led Sastrify’s AI-native rebuild: moving from traditional SaaS modules to an autonomous agent architecture.
I owned the product architecture, wrote the specs and system prompts, and worked closely with engineering on boundaries, tool calls, and escalation paths. Sastrify was acquired by Deel in May 2026.
My reflection on the chapterEight years turning an idea into a European flight-sharing marketplace. I built and led the product and technology, helped raise €7.5 million, and grew a cross-functional team of more than 30.
Along the way, we won TechCrunch Startup Battlefield Europe. When the pandemic grounded commercial aviation, we built a pilot-to-medical-staff matching platform with Aviation Sans Frontières in five days.
The TechCrunch momentHOW I BUILD
Write the spec. Work through the architecture. Sit in the review. Own the decisions from the first brief to the thing people actually use.
Build around what agents can do, with clear boundaries, useful tools, and thoughtful human escalation. The workflow matters as much as the model.
Listen to customers, give teams a clear direction, and keep the feedback loop short. Good products come from shared understanding.
02 / THE LONGER STORY
Products, communities, and the occasional leap.
The thread has always been curiosity.
Before flight sharing and AI agents, there was a community of people learning to make games.
I started Unity Insider in 2008. It grew to more than 10,000 developers, with tutorials, a forum, and a shared excitement for building.
Since then, I’ve co-founded companies, led product teams, and helped a media house make AI part of its daily work. Different settings, the same instinct: understand what could be better, then build it.
Former volunteer firefighter. alphalist community ambassador. At home in German, English, and French.
Founded a German Unity community, published free tutorials, and helped more than 10,000 game developers learn and connect. Later exited to a German software development company.
Co-founder and CPO/CTO. Built product and technology, raised capital with the team, and won TechCrunch Startup Battlefield Europe and the WTFL Innovation Award in 2018.
As co-founder and CPO, designed and launched a B2B SaaS product for AI skills training, owning product, UX, and first-customer onboarding.
Joined Entrepreneur First in Paris as an Entrepreneur in Residence to explore founding again, before returning to product leadership.
Led technological transformation, reporting to the board. Built the roadmap, shipped the first AI-powered editorial workflows, and ran hands-on workshops for teams.
From Senior Product Manager to Head of Product at Sastrify, then Staff Product Manager at Deel. Today, leading a two-team SaaS Management and IAM vertical.
03 / IN THE PRESS
Reporting from the Wingly years.
On the idea, the company, and the person behind it.
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GOOD THINGS OFTEN START WITH A CONVERSATION.
Especially if you care about product craft,
AI that earns its place, and building with ambition.