Field / Site CTO

This is a role that TechTree is recruiting for on behalf of one of our clients. TechTree is an AI-driven recruitment platform working with high-growth companies. When you apply, our AI Agent matches you not just to this role, but to other relevant opportunities across our network, so one application can unlock multiple roles. Field / Site CTO — turn ambitious enterprise AI initiatives into working systems. Prague, on-site 4 days a week. Our client is an AI transformation firm helping companies turn AI ambition into working business systems, combining strategic advisory with hands-on, agentic execution. Small teams of practitioners augmented by AI agents deliver what a 14-person consulting team used to. As Field CTO, you'll be the senior technical leader embedded in client environments: hands-on, building and shipping, owning the technical side of engagements end to end, and working directly with the founder. What You'll Do → Own technical delivery of AI transformation engagements for enterprise customers → Lead architecture, implementation and deployment of AI systems and agentic workflows → Be the senior technical point of contact in demos, stakeholder meetings and leadership discussions → Hire, grow and lead delivery teams (5–50 people) as engagements scale → Set engineering standards and contribute to reusable IP and methodology What We're Looking For → Founder experience: an exit, meaningful funding raised, or significant team growth → 7–10+ years of engineering, still close to code (backend, full-stack or infrastructure) → Proven track record building and scaling engineering teams from scratch → Startup DNA: thrived in 0→1 or 1→10 environments → AI fluency: modern LLM systems or AI features shipped in production → Excellent English and strong executive presence Compensation above local market rates, benchmarked in the top quintile of a leading VC portfolio. What is TechTree? TechTree combines AI agents with a human support team to give candidates a better, more transparent hiring experience. Our AI Agent gets to know your background, experience, and what you're optimising for. It continuously matches you to live roles across our network where there's genuine alignment, not just keyword overlap. Our Human Team is there to support you through the process — answering questions, adding context, and making sure you're never left guessing or ghosted. We only post real jobs. Every role on TechTree is a live, active hire.