Senior Production, Fleet & Maintenance Engineer (m/f/d) - EFT Mobility AG

Join EFT Mobility at a pivotal time as we revolutionize the future of electric transport, focusing on cutting‑edge Electric Powertrain (EFT) solutions for high‑reliability applications, including UAV power systems . We are a fast‑growing, dynamic company where every engineer plays a direct, hands‑on role in bringing our innovative, safety‑critical products to life. If you thrive on ensuring product quality and solving complex, real‑world problems, we want you on our team.

We are seeking a proactive and detail‑oriented Senior Production, Fleet & Maintenance Engineer to bridge the gap between initial design and long‑term product success. You will be the technical lead for our battery products once they hit the production line and the field. This role requires a detective mindset to solve field failures, a builder mindset to coordinate reworks, and a leader mindset to manage our battery fleet and manufacturing partnerships.

What is your Day to Day Mission:

• Engineering Change Management (ECM)
  • Collaborate with the Engineering team and Contract Manufacturers (CMs) to analyze and validate hardware or process changes.
  • Provide on‑site or remote monitoring of change implementations on the production line to ensure zero loss in quality.
  • Validation: Design and execute rigorous test plans to verify that changes meet safety and performance standards before customer shipment.
• Failure Analysis & Root Cause Determination
  • Own the Field Return (RMA) process from technical arrival to resolution.
  • Perform deep‑dive teardowns and data analysis to identify root causes of battery failures.
  • Coordinate with the design team to implement permanent fixes and ensure these improvements are integrated back into the active production line.
• Fleet & Lifecycle Management
  • Manage the health and inventory of the internal battery fleet used for R&D, testing, and production support.
  • Sustainability: Define the criteria for battery end‑of‑life and coordinate the logistics for recycling programs.
  • Supervise and document the rework of internal battery packs to maintain peak testing capacity.
• Field Campaign Coordination
  • Organize and lead large‑scale rework or retrofit programs for battery sets already deployed in the field.
  • Develop specialized tooling or instructions for field technicians to ensure reworks are performed safely and consistently.

What you bring to the team:

• Experience: 5+ years in battery systems, power electronics, or hardware product engineering.
• Technical Skills: Experience with Battery Management Systems (BMS), failure analysis and hardware testing protocols.
• Project Management: Ability to coordinate complex tasks between internal engineering teams and external manufacturing partners.
• Communication: Strong ability to translate technical failure data into actionable engineering changes.

Your Benefits:

• Direct impact: See your contributions rapidly integrated from cutting‑edge research into industrialized products, flying in the field within short development cycles.
• Culture & Environment: A dynamic, fast‑paced, and collaborative startup environment with flat hierarchies, efficient collaboration, and a strong emphasis on continuous learning opportunities.
• Work‑life Balance: We offer flexible work schedules, and 30 days of paid vacation each year to support your personal and professional life.
• Lunch Benefit: We promote healthy eating and the well‑being of our employees with a monthly lunch budget.
• Mobility Benefit: With our mobility budget, we pay your “Germany Ticket” for work or personal use monthly.
• Health & Wellness: We support your physical well‑being with a company‑subsidized eGym Wellpass membership, giving you access to thousands of gyms and sports facilities.
• Language Courses: German isn’t your mother tongue? We sponsor German courses for you to quickly learn and integrate even more.

Send us your application to: If you're excited about using your skills and joining us on our mission, then apply today and become a part of our dynamic team in Munich!