Technical Buyer for the Battery Energy Storage System

We’re hiring a Technical Buyer for the Battery Energy Storage System (m/f/d) to lead design-to-cost, sourcing, and industrialisation for our Battery Energy Storage System (BESS) products. You’ll pair deep technical insight with commercial and manufacturing know-how to cut cost, improve manufacturability, lift supplier performance, and help us scale production in a fast-moving startup. This is a hands-on, high-impact role in a fast-moving startup environment, where you’ll challenge designs, influence key decisions, and implement practical improvements without compromising quality, safety, or reliability. Your mission

• Value Engineering & Design Optimization: Drive cross-functional DFM/DFA and value engineering initiatives. Review designs, technical drawings, and Bills of Materials (BOMs) to identify and execute opportunities for cost reduction, complexity minimization, and accurate cost estimation.
• RFQ Management: Lead the end-to-end RFQ process for components, assemblies, and manufacturing services. Ensure clear specifications, enable accurate supplier comparisons, and establish dual-sourcing strategies for critical parts.
• Commercial Negotiation: Support high-stakes negotiations covering pricing, lead times, payment terms, tooling investments, and long-term framework agreements to optimize Total Cost of Ownership (TCO).
• Supplier Performance & Quality: Partner with the Quality team to qualify suppliers, track performance via clear KPIs, and establish structured feedback loops.
• Industrialization & Scalability: Partner with Engineering Team and Suppliers to continuously optimize manufacturing and assembly processes, ensuring scalability and consistent quality.

• Education: Technician certification. Bachelor’s or Master’s degree in Mechanical, Electrical, Industrial, or Manufacturing Engineering (or equivalent).
• Experience: 10+ years of total professional experience, with at least 5+ years specializing in technical buying.
• Technical & Manufacturing Expertise: Extensive hands-on experience with electromechanical systems (wire harnesses, battery modules, connectors, PCBA) and industrial processes (sheet-metal, welding, machining, cabinet assembly, thermal systems).
• Procurement & Design Literacy: Proven track record in cost analysis and cost reduction activities. Fluent in reading/challenging technical drawings, CAD documentation, specifications, and BOMs.
• Methodology & Change Management: Experience applying design-to-cost, DFM/DFA, and value-engineering principles within dynamic production environments.

Languages: English (required), German (B2+) or Italian/Chinese is a plus Travelling time: at least 25%Why STABL Energy?

• Agile, open & innovation-driven culture with flat hierarchies, quick decision-making processes and real ownership
• Company pension scheme to support you plan for the future
• Flexible working hours, a hybrid work model, and the option to work remotely from abroad
• Digital meal vouchers with Circula Lunch - enjoy tasty lunches on us!
• Monthly benefit in kind to spend at your favourite stores
• Corporate benefits portal with exclusive employee discounts
• Regular team-building activities and team events
• Company EGYM Wellpass membership to train with no limits at numerous fitness clubs across Germany

STABL Energy is one of the most innovative start-ups in the energy transition, ees Award winner 2022, pv magazine award winner 2025 and named a global Top100 Energy Start-up. We are funded by renowned and experienced Tech VCs from Germany, Denmark and Switzerland., We make energy storage stable and secure the future of energy. As technological pioneers, we develop storage solutions that extend battery life cycles and encourage the sustainable use of resources. Our approach is simple: we never recycle a battery too soon. STABL Energy is more than just a traditional start-up company. Ready to be part of us, innovate, impact, and inspire?