Freelancer profile translated to English.
Back to original languageAbout Christian
AI systems that run in production. Not another proof of concept that ends up in the drawer. Evaluate technology before it's bought. That's exactly what I do.
Fractional CTO and AI Engineer with 10+ years of experience as CTO and Co-Founder (including exit). MSc in AI/ML.
I build multi-agent systems, LLM pipelines, and workflow automations with Python, n8n, LangChain, and common cloud stacks (AWS, GCP, Azure). From architecture to implementation to production operation, including security hardening, monitoring, and handover to internal teams.
In parallel, I conduct structured tech due diligences for investors, PE funds, and M&A advisors: code quality, architecture, security, scalability, team maturity. Buy-side, sell-side (VTDD), and AI readiness. I don't just evaluate technology theoretically. I've built, scaled, and sold it myself.
Typical projects:
- Agentic AI systems for financial service providers, insurance companies, and SaaS companies
- LLM-powered automation of business processes (invoice processing, claims reporting, lead qualification)
- Workflow automation with n8n, Make.com, Power Automate + AI integration
- Buy-side and sell-side tech due diligence for PE/VC
- Post-merger technical integration and AI readiness assessments
- Interim CTO during recruiting or transformation phases
Industries: Private Equity, Financial Services, Insurance, SaaS, E-commerce, Industry.
Frankfurt am Main. Remote or on-site in DACH and Europe.
Write to me with your project.
I'll honestly tell you if and how I can help.
English
Native or bilingual
German
Native or bilingual
Can work on-site
Frankfurt am Main (up to 15km), München (up to 10km)
Experience
- ESG-Fintech (vertraulich)Fractional CTOBANKING AND INSURANCEJanuary 2026 - April 2026 (3 months)London, United KingdomPost-acquisition stabilization of an ESG compliance and reporting platform for asset managers. The engineering team had inherited a codebase that no one fully understood. No observability, no alerting systems; production issues were reported by customers rather than detected internally.Performed a technical assessment across six dimensions, then hands-on as Fractional CTO closed the most critical gaps.Result: stable monitoring, clean deployment processes, documented codebase, engineering team trained in the use of AI tools.-> Moved the team from firefighting to growth mode.
- Digital Office 24 GmbHCTOSOFTWARE PUBLISHINGJanuary 2019 - August 2025 (6 years and 7 months)Frankfurt am Main, GermanyMulti-tenant SaaS platform with family office functionality: asset management, accounting, taxes, banking, multi-asset management. Regulated environment (BaFin).Built the engineering team from 0 to 10. Established product architecture, security, CI/CD, and development processes from scratch. Introduced Generative AI across the entire product team.
- Aivy (vormals feel.yt)CTOSOFTWARE PUBLISHINGJanuary 2016 - January 2019 (3 years)Frankfurt am Main, GermanyGrew from working student to CTO. Built the first platform (sentiment-based movie search) on Google Cloud Platform with Python, pivoted to an ML product: Mood/Occurrence Prediction and Movie Atmosphere Classification as a Service. Responsible for Data Science, Product Strategy, Security, and the development team.
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Education
- EFSET EXPRESS High Proficiency (CEFR C1/C2)EFSET EXPRESS High Proficiency (CEFR C1/C2)
- MSc Computer Science (AI/Machine Learning)The Philipp University of Marburg2019MSc Informatik (KI/Machine Learning)