System Engineer (m/f/d) - Battery Systems

At Triathlon Group, we place great importance on achieving success as a team and offering our employees room for personal development. We value fair treatment of one another and promote a culture in which everyone—regardless of position or length of service—can contribute their ideas and initiatives. As a rapidly growing group of companies in the dynamic energy storage market with more than 1,600 employees at locations on three continents, we rely on agile working methods and offer a wide range of learning and development opportunities in an inclusive and equal environment.

As a System Engineer, you will take on the technical ownership of battery system development - whether for full systems, modules, or subsystems - working closely with a project manager who handles the organizational aspects (timeline, cost, quality). You will act as the technical lead throughout the development cycle, from concept to industrialization, coordinating across disciplines and ensuring that all technical requirements and standards are met.

Your Responsibilities

• Lead the technical development of battery energy storage systems for industrial mobile applications
• Translate product requirements into technical specifications and system-level architecture
• Collaborate closely with project management to ensure alignment on schedule, cost, and quality targets
• Own and manage system requirements, interfaces, and safety concepts
• Ensure system-level verification, manufacturability, and compliance with standards
• Participate in the design and development of hardware/software for control units, BMS, and test systems
• Oversee the design, integration, and testing of functional prototypes and validation samples
• Prepare and maintain product documentation (e.g. system specifications, BOMs, operation flow‑charts, test protocols, RCA reports, manuals)
• Coordinate with cross-functional engineering teams (mechanical, electrical, software, testing)
• Interface with internal and external stakeholders, including certification bodies and manufacturing partners

Requirements

• Degree in Electrical Engineering, Mechatronics, Physics, or related field
• Proven experience in complex product development, ideally in energy storage or battery systems
• Strong understanding of system architecture and product lifecycle in a technical environment
• Experience with industrial standards and regulations (e.g. UN 38.3, IEC61508, EN ISO 13849, EN 1175 is a plus)
• Ability to think analytically and work systematically across domains
• Hands‑on mentality with a structured and goal‑oriented working style
• Excellent communication skills in English, both written and spoken
• A team player with a high sense of ownership and responsibility

Benefits

• A motivated company with flat hierarchies and short decision‑making processes
• Permanent employment contract
• Personal support and advice from a dedicated contact person at your branch
• Stable working environment in an international company
• Fair pay and company benefits
• A modern working environment with high‑quality technical equipment

Does this sound like you, and are you interested in a varied range of tasks? Then apply now!

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