Senior Full-Stack Engineer (all genders)

Department: Development / Engineering

Employment Type: Permanent employee

Schedule: Full-time

Seniority: Experienced

Location: München

Make the "black box" of AI optimization visible and actionable. You will build the interface and APIs that allows facility managers and EMS integrators to trust and control our optimization engine.

From powerful configuration modules to intuitive mobile workflows, you make interactions with our complex optimization engine feel simple, robust, and enjoyable.

Key responsibilities

• Full-Stack Development: Architect and build features end-to-end. You handle the React/TypeScript frontend and the Python/FastAPI backend that powers it.
• User-Facing Product: Create and improve key desktop experiences like dashboards and digital twin configurations as well as intuitive on-site mobile experiences like e-vehicle charging and maintenance scheduling.
• API & Data Layer: Design clean APIs and data models that ensure reliable data exchange between frontend, backend, and external systems. 
• Advanced Data Visualization: Implement high-performance charting (D3.js, Recharts, etc.) to display live power flows and optimization schedules without clutter.
• UX/UI Ownership: You bridge the gap between "functional" and "delightful." Turn complex requirements into intuitive user flows.
• Component Architecture: Establish a reusable component library that scales across different views (mobile vs. desktop) and ensures UI consistency.
• Own Delivery End-to-End: Work onsite-first in a cross-functional team. You design across the stack and see features through to production, from backend logic and APIs to UI and monitoring.

• 5+ years of experience building production-ready web applications, with experience across both frontend and backend.
• Deep expertise in TypeScript and a modern framework (React, Vue, or Svelte).
• Solid backend engineering experience, including database work and API design.
• Strong system intuition: you know when to optimize a query, when to simplify a UI, and how both decisions shape the overall product.
• You know how to leverage AI tooling effectively, speeding up exploration and prototyping while keeping the production codebase robust, clean, and maintainable.
• Clean, maintainable code matters to you, and you’re always looking for ways to improve how things get built.
• Comfortable working in modern cloud environments (Heroku, AWS, GCP) and with CI/CD to ship features quickly and safely.
• You think like an owner, not just an executor: proactive, curious, and hands-on.
• Pragmatic design sense: You can take a rough concept and turn it into a prototype, then iterate until it is a polished, user-friendly interface.
• Bonus: Experience with Data Visualization libraries or the Energy Domain.

• The excitement of working in a driven start-up team, where your contribution truly matters.
• Competitive salary with additional benefits such as EGYM Wellpass
• Make a difference by accelerating the energy transition with your work.
• Prime location: Office right at Goetheplatz in Munich (home office days possible)
• Keep growing as you help define the future of energy software, moving fast, solving tough problems, and building cutting-edge software alongside a collaborative team.