Fractional CTO in Berlin
Expert technical leadership for Berlin startups. CTO services in CET/CEST timezone. Build, scale, and transform your product without full-time CTO costs.

Why Berlin Startups Choose Fractional CTO
Berlin has established itself as Europe's startup capital. The city is home to thousands of tech companies, from early stage to unicorns, with excellent access to venture capital, international talent, and corporate partnerships. Industries like FinTech, E-commerce, Mobility, Enterprise SaaS, and AI/ML thrive in this ecosystem.
However, Berlin's ecosystem creates unique challenges: competition for senior engineers is high, investor expectations for technical maturity are rising, and compliance with GDPR and German regulations requires expertise. Many startups find that traditional full-time CTO hiring—costing €150K-€250K+ plus equity—is impractical at early stages.
Challenges for Berlin Startups
- High competition for senior technical talent in Europe
- Need for GDPR and German regulatory compliance
- Investors expect high technical maturity
- Need for rapid scaling after funding rounds
- BaFin requirements for FinTech startups
- High competition for senior technical talent in Europe
- Need for GDPR and German regulatory compliance
- Investors expect high technical maturity
- Need for rapid scaling after funding rounds
- BaFin requirements for FinTech startups
How Fractional CTO Solves These Challenges
- Access to experienced CTO without Berlin salary premiums (€100K-€200K+ annual savings)
- Start immediately—no 3-6 month hiring process
- Scale engagement up/down as you progress through funding rounds
- Expertise in building distributed teams with remote-first focus
- Global best practices with European market understanding
What I do
- Tech stack selection for European talent market
- Launch in 3-4 months with scalable foundation
- GDPR-compliant architecture from day one
- Handle 10x growth without outages
- Manage technical debt and refactoring
- Prepare for European VC due diligence
- LLM integrations and GPT-powered solutions
- ML systems for competitive advantage
- Strategy, implementation, and MLOps
- Code quality and architecture review
- Prepare for European VC due diligence
- Risk map and recommendations
- Comprehensive technical risk assessment
- Team and product scalability analysis
- Reports for investment committees
- Navigate Berlin's international talent market
- Build hybrid teams (local + remote engineers)
- Establish engineering culture
Pricing
Packages for Berlin Startups
Advisor CTO
$3,600per month
~6 hours per week of dedicated time
For early-stage startups with an MVP or an idea that need oversight and support without full-time involvement.
How we work:
- Bi-weekly strategy session with founders (90 min)
- Technical stack and architecture review - are you building on the right foundation?
- Code review of critical decisions and risky PRs
- Candidate screening: resume review, interview structure, hire/no-hire recommendations
- Infrastructure and tooling spend review - are you overpaying for cloud and third-party services?
- Async access via Slack (48-hour response time)
What you walk away with:
- Technical assessment report - honest evaluation of your codebase, infrastructure, and risks
- Technology roadmap - prioritized recommendations for the next 6 months
- Hiring scorecard - what to look for in your first 3-5 engineers
Outcome
Confidence that your technical decisions are sound and a clear plan to build on - without costly mistakes.
Month-to-month, cancel anytime
Growth CTO
Most popular$5,800per month
~10 hours per week of dedicated time
For Post-Seed to Series A startups actively building product and scaling their team from 3 to 10 engineers.
How we work:
- Weekly sync with founders - priorities, blockers, technical strategy
- Code review and architecture ownership - I'm in your codebase, not just on calls
- Hands-on hiring: job descriptions, sourcing strategy, technical interviews, offer calibration
- Technical debt triage - identifying what slows the team down and what can wait
- CI/CD and developer productivity review - testing strategy, deployment pipeline, dev environment
- Engineering delivery oversight - sprint reviews, velocity tracking, quality gates
- Production incident support - emergency availability during critical outages
- Async access via Slack (24-hour response time)
What you walk away with:
- 90-day technical roadmap, updated quarterly
- Architecture Decision Records - documented rationale for every major technical choice
- Hiring playbook - leveling criteria, interview process, scorecards, onboarding checklist
- Monthly strategic memo - progress, risks, recommendations
- Technical debt register - prioritized list with estimated impact and effort
- Team OKRs - quarterly goals tied to business outcomes
Outcome
A solid technical foundation and team ready for rapid product growth without chaos.
3-month minimum commitment
Scale CTO
$11,000per month
~20 hours per week of dedicated time
For Series A+ startups with 15-20+ engineers preparing for the next funding round.
How we work:
- Everything from Growth CTO package
- Daily involvement in engineering operations - standups, planning, escalations
- Executive team participation - board prep, investor meetings, due diligence support
- Engineering management development - coaching team leads into engineering managers
- Organizational design - team topology, processes, rituals, communication structures
- Vendor strategy - cloud cost optimization, service negotiations, contractor management
- Technical debt strategy - refactoring roadmap balanced against product delivery
What you walk away with:
- Engineering handbook - culture, standards, processes, expectations
- Leveling and compensation framework - career ladders and salary bands
- Engineering metrics dashboard - DORA metrics, velocity trends, code quality
- Incident management playbook - on-call rotation, severity definitions, postmortem process
- Technical due diligence package - investor-ready architecture and security documentation
- Security and compliance assessment - SOC2, GDPR, HIPAA readiness evaluation
- Engineering headcount plan and infrastructure budget forecast
Outcome
A mature engineering organization ready for due diligence and the next funding round.
3-month minimum commitment
How Remote Work Functions with Berlin Startups
- Working hours overlap: 2-3 hours overlap with 9:00-18:00 CET daily—sufficient for meetings and calls. Outside this window, available asynchronously via Slack and email, enabling work without downtime.
- Communication rhythm: Weekly strategic call with founders. Bi-weekly team sync. Daily communication via Slack. Emergency availability for critical issues.
- In-person visits: Quarterly visits to Berlin available for Scale CTO and higher packages. Available for board meetings and investor presentations (remote or in-person).
How it works
Week 1: Onboarding and Audit
5 daysTeam introduction, codebase review, identify critical issues, create initial roadmap.
Month 1: Quick Wins and Foundation
4 weeksAddress critical issues, set up development processes, code reviews, begin architectural improvements.
Month 2-3: Scaling and Growth
8 weeksImplement architectural improvements, optimize performance, hiring and team mentorship.
Understanding Berlin's Startup Ecosystem
- FinTech and Payments
- E-commerce and Marketplaces
- Mobility and Transportation
- Enterprise SaaS
- AI/ML and Deep Tech
- Developer Tools
- Familiar with Earlybird, Project A expectations
- Help defend technical architecture for European investors
- Experience with German and European VCs
- GDPR (General Data Protection Regulation) compliance
- German labor law
- BaFin requirements for FinTech
- SOC2 Type II for enterprise clients
Frequently asked questions
Related services
Ready to Work with a Fractional CTO in Berlin?
Start with a free 30-minute consultation. We'll discuss your goals, challenges, and determine how I can help.