Founding Engineer

We're an early-stage startup building a product people use every day. The role involves working directly with the founders, owning technical decisions, and shipping impactful features from day one. The position is full-stack with a backend lean and a product-builder mindset.

• Strong engineering fundamentals with full-stack experience
• Experience building products from 0 to 1, not just adding features to mature codebases
• Startup experience with small teams, high ownership, and fast iteration
• Backend-leaning but comfortable across the stack
• Some ML interest or ML-oriented thinking
• Ability to work independently, take initiative, and not wait for tasks
• Comfortable with ambiguity and changing priorities
• Able to work hybrid in Warsaw

Nice to have:

• Previous founding engineer or early engineer experience
• Experience working directly with founders or users in a product-shaping capacity
• Experience building ML-powered product features
• Product sense beyond pure implementation

• Build product features end-to-end — backend, frontend, whatever it takes
• Take ownership of technical decisions without needing a committee
• Support 0-to-1 product development — be involved in the early stage
• Contribute to ML-related product features when needed
• Collaborate closely with the founding team to define what gets built and how
• Move quickly, iterate, and ship in an environment with shifting priorities