A123 Systems GmbH | Germany | 70xxx Leinfelden-Echterdingen | Permanent position | Full time / Home office | Published since: 13.02.2026 on stepstone.de
Key Account Manager – Automotive (m/f/d)
As the world's leading supplier of complete lithium-ion energy storage solutions that offer high performance, high energy, excellent safety and excellent service life, we provide our customers with quality products whenever and wherever they need them. The A123 products offer excellent energy density, which allows a greater range per charge. Our advanced technology allows vehicle manufacturers to develop environmentally conscious improvements in the drivetrain. These advances help to reduce emissions, reduce fuel consumption and reduce our dependence on oil. Our groundbreaking technology is the core of our product portfolio for the automotive industry and enables us to produce extremely competitive lithium-ion solutions at system, module and cell level. As a real innovator in battery system design, we have the necessary technical know-how to support the development and validation of advanced cell designs, software, electronics and heat management systems that drive today's electrified vehicles. The core of A123 Battery Systems are our first-class, internally developed cells that use the most advanced battery chemistry for each application to minimize the oversized battery packs and system costs. A123 has invested heavily in scientific talents, our supply chain has expanded and our NMC production has increased to more than half of our annual production. This success has led us to continue investing in new research and development to further improve the energy density of our future products without affecting the safety or performance of the batteries. Our global production site offers a balanced relationship between size advantages and customer proximity, so that we are able to deliver cost-efficient lithium-ion solutions that drive the most advanced vehicle technology in the world at any time. .
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Your tasks • Your profile • What we offer
Extraction and strategic support of OEM customers for A123 Systems
Development and implementation of tailor-made programs to increase sales and support new product developments in the OEM environment
Implementation of comprehensive competitive and market analyses to identify growth opportunities
Close cooperation with marketing and technology to derive and implement customer-specific sales and product strategies
Identification of new business opportunities through deep understanding of OEM customer needs and production requirements
Building and maintaining long-term strategic relationships with decision-makers at management and headquarters level
Creating sound financial and cost analyses to ensure sustainable competitive advantages and successful contracts
Preparation and negotiation of tenders, framework contracts and series supply contracts with respect to margins and mutual benefits
Development of sales forecasts, targets and strategic roadmaps for continuous overhaul of sales targets
Coordination of internal specialist departments for efficient processing of customer requests on quality, delivery status, warranty and service
Analysis of the cost-effectiveness of operational measures with regard to customer satisfaction, sales development and margin assurance
Implementation of special projects and analyses according to the Sales Director and Global Sales VP
Founded professional experience in B2B sales, ideally in the automotive OEM environment At least 3–5 years of experience in sales or key account management with automobile manufacturers (OEM) Detectional experience in the management of complex, long-term customer projects in the automotive sector Experience in cooperation with purchasing, development and quality departments on OEM page Representative presentation and negotiation strength at management and executive level Experience in the European battery or energy storage market Existing network in the automotive OEM environment in Germany, ideally with a European range Deep understanding of OEM development processes, serial operations (SOP) and supplier requirements Experience in commercial negotiations, price negotiations and contract design (e.g. framework agreements, nominations) Very good knowledge of German and English in word and writing Secure handling of Microsoft Word, PowerPoint and Excel Strong result orientation as well as the ability to actively control and successfully complete complex decision-making processes at OEM Strategic thinking paired with high self-motivation and professional appearance High readiness to travel (at least 50 %), including international missions
Attractive overall package: competitive salary, notebook and mobile phone Flat hierarchies: Promotes cooperation and communication Professional onboarding: With introductory event and mentor during incorporation. Personal development: tailor-made career planning, continuous training and projects Various corporate culture: emphasis on cultural diversity and international teamwork Efficient communication: short paths and supportive colleagues for a positive atmosphere Long-term perspective: stable business development and forward-looking products for long-term career opportunities. Occupational pensions (100% employer financing) Free supply of coffee and water Grant for the VVS company ticket Company events, team building and individual development plans Corporate Benefits Services bonus program for employee recommendations Access to corporate fitness offers Possibility of cycling leasing
Location
 | A123 Systems GmbH | |
| 70771 Leinfelden-Echterdingen | ||
| Germany |
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