Co-Founder & CTO | AI & ML Startup
Job description
Hands-on Co-Founder & CTO to own the technology and product end to end, taking a tested AI copilot MVP for technical field service to a production-grade product and scaling the company.
At a glance
- Work mode
- Remote
- Languages
- German – fluent, English – fluent
What you'll do
- Own the technology end to end: architecture, roadmap, build-vs-buy decisions, reliability and security
- Take the tested MVP to a production-grade product used daily by technicians in the field
- Build reliable AI workflows and repeatable integrations into customer systems such as work orders and asset data
- Continuously improve the Machine Learning core: retrieval over manufacturer and expert knowledge, multimodal input (photo, voice) and diagnostic reasoning
- Design and build the learning engine that makes the product smarter with every visit: capturing, reviewing, evaluating and reusing confirmed outcomes
- Set up evaluation, safety and monitoring: expert-reviewed benchmark cases, grounding, escalation and regression testing
- Build a state-of-the-art UX/UI that technicians want to use every day
- Spend time with technicians in the field and turn their feedback into product within days
- Recruit and lead the engineering team as we scale
- Shape the company as a co-founder: strategy, culture and investor conversations alongside the founding team
What we're looking for
- Master's degree in Computer Science, Machine Learning/AI, Data Science, Mathematics, Physics, Electrical Engineering or a related quantitative field
- Machine Learning experience, ideally 3+ years applying it in production products (e.g. LLMs, retrieval/RAG, NLP, computer vision, model evaluation)
- Entrepreneurial mindset: you want to build a company, not just a product – full ownership, bias for action and comfort with ambiguity
- Experience leading the technical build of a product from zero to one, e.g. as tech lead or founding engineer
- Strong hands-on software engineering across backend, APIs, data pipelines and cloud – you still build and ship yourself
- Sound technical judgement: you know the limits of LLMs, how to test them and when not to use them
- Product empathy: you enjoy learning from users in the field and making complex work simple
- Fluent German and English – German is needed for working with technicians and technical source material
Nice to have
- PhD in Machine Learning, NLP, Computer Vision, Information Retrieval or a related field
- Previous founder or early-stage startup experience
- Experience with Microsoft Azure and enterprise B2B requirements (security, GDPR, multi-tenant SaaS)
- Background in field service, industrial, maintenance or proptech software
- Experience with multimodal AI, voice interfaces or decision-support systems
- Experience hiring and leading engineering teams
Apply
About Founders Factory
Stealth-mode AI venture building a copilot that guides technicians at every job like an experienced master craftsman – before, during and after every job. Built in the field, not behind closed doors: the product is developed with direct access to thousands of technicians with a leading European real estate industry partner – every feature is tested on real jobs, with results in days instead of months. Backed by Founders Factory; founding team in Berlin, MVP built and tested with technicians, now heading towards spin-out and first funding.
Mission
Vision: Europe's leading field service intelligence layer.
Key facts
- Berlin
- Stealth-mode AI venture
- MVP built and tested with technicians
- Heading towards spin-out and first funding
- Backed by Founders Factory
- Direct access to thousands of technicians with a leading European real estate industry partner
Partners & customers