Shaping the future of energy storage At A123 Systems, we're driving the transition to cleaner, more efficient energy solutions with advanced lithium ion storage technologies. Our cutting-edge battery systems offer superior energy density, safety and durability, helping vehicle manufacturers achieve exceptional performance while reducing their environmental footprint. Our expertise goes beyond automotive applications. In addition to high-voltage batteries for electric and hybrid vehicles and low-voltage solutions that improve efficiency, we also produce energy storage systems (ESS) designed to optimize energy use, support the integration of renewable energy sources and provide reliable backup power. With capabilities that include innovative cell chemistry, integrated thermal management, software and electronics, we deliver complete, cost-effective energy solutions tailored to our customers' needs. Backed by a global manufacturing footprint and a commitment to pushing the limits of performance, A123 Systems is reducing emissions, improving energy efficiency and powering a cleaner, greener future across industries. We are looking for Field Service Engineer (all genders) for our team Tasks : Consulting and support for all European customers regarding the entire product range of A123 Systems in the high-voltage and low-voltage range Installation and commissioning of the products at our customers' sites Technical support on the phone and at the customer's site Carrying out analyses and determining the cause of defects in accordance with IATF and VDA standards Documentation of all detected fault diagnoses Monitoring and ensuring activities in the analytical laboratory according to 5s. Coordination of field activities Interface between customer and internal department e.g. engineering for the purpose of product improvements and warranty monitoring Participation in internal and external trainings Requirements : Completed training as a master car mechanic or technician At least 5 years of active work experience Good knowledge of vehicle electrics, electronics, and systems networking Initial experience with electric and hybrid vehicles High voltage technician level 2 training desirable Ability to identify customer needs Strong communication and presentation skills Must be a creative thinker who takes full responsibility Must be a team player who thrives in a start-up culture with minimal or evolving policies and procedures Must be outwardly enthusiastic and self-motivated Excellent English language skills, fluency in German a plus Driving license class B Willingness to travel within Europe approx. 50%, 50% in Stuttgart laboratory Spontaneous and flexible We offer: Work culture Flat hierarchies & creative freedom: Your ideas count and your work has a direct impact. Team spirit: A supportive, warm atmosphere with helpful colleagues. Onboarding & Development: Comprehensive onboarding: An induction plan, mentoring and support right from the start. Career development: Continuous training, individual career planning and global project work. Benefits Attractive salary package with notebook and mobile phone 30 days holiday per year for a good work-life balance Company pension scheme Group accident insurance Corporate benefits Urban Sports membership E-bike leasing discount Home office options