I turn engineering
into a competitive
advantage.
Fractional CTO for startups and scale-ups. I treat technology as a business function — not a cost center.
Hey, I'm Chris. Let's work together.
Based in Frankfurt · available worldwide & in-person
What I Do
Technical leadership for ambitious teams.
Rescue & Stabilize
Things are breaking. The team is stuck. Deadlines are slipping.
I do a deep dive into your tech, team, and product. You get a clear report with priorities, action items, and deliverables for the next weeks and months. We fix what's urgent first: downtime, churn risks, things costing you money right now.
Due Diligence
Evaluating an investment, acquisition, or technical initiative.
I uncover technical risks and make them tangible and manageable. Architecture, infrastructure, team capability, technical debt. You get an honest assessment and clear recommendations. For M&A, PE, and funding rounds.
Enable & Accelerate
The team works, but you need a high-performing engineering org.
I align engineering with product and commercial so tech becomes a revenue driver. Process, architecture, AI-assisted workflows. We build the structure for a team that ships fast and makes the business money.
Coach & Transition
A junior tech lead who needs to grow into the role.
I tag along with junior leaders to get them standing on their own feet. Coaching, sparring, making sure things stay stable while they grow. The goal is that you don't need me anymore.
About
The Short Version
BSc and MSc in Computer Science with a focus on theoretical CS and machine learning. I've been building software for 20 years and leading engineering teams for the last 10 as CTO, founder, and co-founder.
My background is hardcore engineering. SaaS, fintech, AI, information security. I'm still highly technical. I can read your codebase, evaluate your architecture, and have real conversations with your engineers. But my value is in the decisions, not the pull requests.
Product, commercial, engineering. These can't operate in silos. I connect them. The result is tech that reduces churn, increases revenue, and gives the business a competitive edge.
Based in Frankfurt. Working with startups and scale-ups worldwide.
Background
Where I've Been
Fractional CTO
thefractionalcto.io · Worldwide
CTO & Co-Founder
Digital Office 24 GmbH · SaaS / Fintech
CTO
Aivy · AI / Recommendations
Fullstack Developer → CTO
feelyt · AI / Data Science
MSc & BSc Computer Science
Theoretical CS & Machine Learning
Selected Projects
Recent Work
ESG Startup
ESG / Fintech · Fractional CTO · Post-M&A
Came in after an acquisition. Assessed the acquired platform, aligned engineering with product and commercial. Got the engineers confident in shipping changes, the sales team confident in demoing, and C-level confident they made the right call. Now on a growth trajectory.
Digital Office 24
SaaS / Fintech · CTO & Co-Founder · 6+ years
Built a scalable multi-tenant SaaS platform including banking for personal and corporate finance. Led tech, security, IT, AI, and product.
2markdown
Developer Tools · Founder · Built & sold
Built a service that enabled GenAI to read any website by making content machine-readable. Got copied by a YC startup. Still made a small exit.
Also building bookcall.io and kaion.ventures.
Christian was our CTO and co-founder. He built scalable technical systems and developed our engineering team with equal attention to both. Pragmatic in approach, clear in communication, focused on quality.
Let's figure out
what your tech needs.
A short call to talk through your technical challenges. No strings attached.
Book a Discovery Call