Founding Product Engineer

About the Role

A fast-moving, early-stage startup building an enterprise-grade AI platform for industrial energy procurement and cost optimization is looking for a Founding Product Engineer to join as one of the first engineers on the team. This is a high-ownership, high-impact role where you'll work directly with founders and customers to shape the product from the ground up.

The platform is data-intensive and technically deep — spanning time-series forecasting, linear optimization, real-time market data, and complex decision-support UIs for industrial energy buyers. You'll have meaningful input into the tech stack and product direction from day one.

What You'll Do

• Own the full product lifecycle from design through deployment.

• Translate product objectives into concrete requirements through close collaboration with customers.

• Design simple, iterative solutions to complex energy procurement and optimization problems.

• Build performant backend services for a data-intensive application.

• Develop intuitive, elegant frontend UIs for complex decision-support workflows.

• Train time-series forecasting models for power consumption and renewables production.

• Develop linear optimization algorithms that reduce customer energy costs.

• Help choose and evolve the core tech stack (PostgreSQL, TypeScript, React, Python).

What We're Looking For

Required:

• 2+ years of software engineering experience delivering scalable web applications, ideally in an early-stage startup environment.

• Proven ability to deliver full product features independently in close collaboration with customers.

• Strong fundamentals for building robust, maintainable, and scalable full-stack web applications.

• Experience building backend services for data-intensive applications.

• Experience building frontend UIs for complex, data-rich decision-support systems.

• A genuine product mindset — you think about outcomes, not just output.

• Comfort with ambiguity and a high-ownership, fast-paced startup culture.

Nice to Have:

• Hands-on experience with time-series forecasting and/or linear optimization.

• Familiarity with PostgreSQL, TypeScript, React, Python, FastAPI, or Supabase.

• Background as a startup CTO, founding engineer, or technical co-founder.

• Interest in or knowledge of energy markets, industrial operations, or sustainability tech.

• Experience at companies in the industrial technology, energy management, or AI/data space.

Location & Work Arrangement

This role is based in Munich, Bavaria, Germany. You'll be expected to work on-site the majority of the week, with flexibility for occasional remote days. Visa sponsorship is not available — candidates must have an existing right to work in Germany.

Compensation & Benefits

• Salary: €85,000 – €140,000 annually, depending on experience.

• Early-stage equity opportunity.

• Direct influence over product, architecture, and company direction.

• Work closely with an experienced founding team at the intersection of AI and the energy transition.