Sebastian dedicates himself to mentoring CTOs, aiding in team and leadership development, and serving as a fractional CTO to various companies.
Leading Chief Technology Officer
Sebastian mentors CTOs, supports leadership growth, and serves as a fractional CTO to help companies scale through his experience.
Sebastian's path also includes a tenure at Philipps & Byrne, where he conducted tech due diligences, supporting investors to make informed decisions.
Previously, Sebastian co-founded the Berlin-based finTech Kontist, where he demonstrated his leadership in scaling the team from 3 to over 200 employees and establishing the company as a major player in banking services.
While at BERGFÜRST, he was part of the initial team that bootstrapped the startup and navigated obtaining a banking license in a highly regulated market.
His role at studiVZ as a Senior Platform Engineer was marked by significant contributions to scaling Germany's largest social network, reaching over 5 million users.
His foundational experience in the tech industry is complemented by his academic achievements as a graduate computer scientist from the Berliner Hochschule für Technik, followed by his role as a lecturer at his alma mater, five years after graduation.
Fluent in German, English, and Polish, with conversational skills in French and Spanish, Sebastian's ability to lead and inspire across cultures is exemplary.
This Coaching Is Not for Everyone.
What I believe...
- Most CTOs don’t struggle with code — they struggle with influence
- Burnout isn’t about working too much, it’s about working against your beliefs
- Leadership is clarity under pressure
What this isn’t...
- This isn’t therapy
- This isn’t training
- This isn’t a safe container
Why I Coach the Way I Do
In corporate, I asked too many questions and once waited a month for an Excel license. So I chose startups.
I immigrated young — and again later in life. Change is never easy, but you only get one life, so you have to take action.
I coach CTOs because I’ve lived the chaos — and know how to lead through it.
