Arbeitnow is now in the UK, France and Switzerland

Jobs in Germany

Home  | Founders Factory  | Co-Founder & CTO | AI & ML Sta...
  • Berlin

  • About us

    Expertise is the bottleneck in technical field service. We are building the AI that makes it scale – and learns from every visit, from every job.

    • 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: our 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

    • Vision: Europe’s leading field service intelligence layer.

    The role

    We have built and tested our MVP. Now we are looking for a hand-on Co-Founder & CTO who builds the technology and product that grows and scales the company.

    What you will 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 – the core of our knowledge moat

    • 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 you bring

    • 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

    What we offer

    • Competitive compensation package, including a meaningful co-founder equity stake

    • A true co-founder role with ownership of the technology and a real say in the direction of the company

    • An unfair head start: a cooperating partner with thousands of technicians and real repair data from day one – the fuel for a system that learns from every job

    • A tested MVP and a clear path to spin-out and funding

    • Support from Founders Factory’s network across tech, design and growth

    • A mission with real-world impact: helping close the skilled-trades gap in Europe

    Location & start

    • Berlin / hybrid, flexible

    • Full-time; start as soon as possible

    How to apply

    • Send your CV or LinkedIn profile with a short note on why you want to build this company with us and an example of Machine Learning work you have shipped

    Jobs at Founders Factory

    Job recommendations