Lead AI Engineer | AI-Native Startup | Berlin
Location: Berlin - On-site
Employment: Full-time
Package: Competitive salary + Equity
AI Futures has been exclusively retained to identify a Lead AI Engineer for a well-funded, early-stage AI startup in Berlin.
We're looking for a genuine 0→1 builder – someone who has built production AI products, thrives in early-stage environments and wants significant ownership over what gets built and how.
You'll work directly with the founding team, taking ownership of the core AI architecture while remaining deeply hands-on with the product.
The Role
- Build and scale production LLM and Agentic AI systems.
- Own key AI architecture and technical decisions.
- Design sophisticated agent workflows, orchestration and tool use.
- Build systems around evaluation, reliability and AI performance.
- Solve problems around model quality, latency and cost.
- Rapidly test new approaches and iterate based on real-world feedback.
- Work directly with founders on product and technical strategy.
- Establish engineering standards as the company scales.
- Mentor engineers and help shape the future technical team.
What We're Looking For
- Strong AI Engineering / Software Engineering background.
- Experience shipping LLM, GenAI or Agentic AI products into production.
- Strong software engineering and architecture fundamentals.
- Genuine 0→1 product-building experience.
- Comfortable making architectural decisions without an established playbook.
- Product-minded and commercially aware – focused on what customers actually need.
- High ownership and comfortable operating with ambiguity.
- Experience leading or mentoring other engineers is highly desirable.
- Founding Engineer / early technical hire experience is particularly attractive.
- Previous pre-seed, seed or Series A startup experience strongly preferred.
- Based in Berlin or willing to relocate and work predominantly on-site.
Why Join?
- Take ownership of the core AI technology at an early-stage startup.
- Work directly with the founders.
- Build the product 0→1, rather than inherit an established platform.
- Significant influence over architecture, product and technical direction.
- Stay deeply hands-on while developing broader technical leadership.
- Help build the future engineering organisation.
- Meaningful equity and long-term upside.
We're particularly interested in engineers who have already experienced the pace, ambiguity and ownership of an early-stage startup and want an even bigger role in building the next one.