System Manager, Battery Energy Storage System (BESS)

Own the system. Shape the solution. Enable the energy transition.

Are you motivated by bringing complex energy systems together into one seamless, high-performing solution?

Do you enjoy working across technologies, teams, and disciplines to deliver real-world impact?

About the Role

We are seeking a highly capable System Manager, Battery Energy Storage System (BESS) to take full system-level responsibility for our complete BESS solution and product platform.

This role is the central integrator across all major subsystems — PCS , Battery DC Block , AC Skid , EMS/HPPC , and grid interconnection — ensuring they function as a coherent, safe, compliant, and market-ready product.

Working closely with the other System Managers (DC Block, AC Skid, Grid Connection, EMS/HPPC), you will ensure that the BESS platform delivers high availability , excellent operational performance , easy installation , quality , and cost competitiveness .

You will play a key role in customer projects, system sizing, solution architecture, product roadmap input, and shaping a fully certifiable BESS product.

Key Responsibilities:

Act as the overall system‑responsible owner of the entire BESS solution/product.

Define and maintain the system architecture , ensuring seamless integration of:

• PCS (Power Conversion System)
• Battery DC Block
• AC Skid
• EMS & Hybrid Power Plant Controller (HPPC)
• Grid interconnection & compliance

Ensure subsystem interfaces are clearly defined, robust, and fully aligned across electrical, control, mechanical, and communication domains.

Collaborate closely with other System Managers to deliver a high‑quality , reliable , safe , and easy‑to-install BESS platform.

Support customer-facing project phases, including:

Understanding customer technical and functional requirements

System sizing and configuration

Defining or selecting product variants and architectures

Clarifying integration, performance, and compliance aspects

Ensure the BESS platform meets all relevant standards and certifiable requirements for the targeted European and global markets.

Drive product-level requirement definition , functional specifications, technical governance, and change management.

Contribute to product roadmap development , ensuring alignment with market trends, grid requirements, and future hybrid power plant needs.

Support cost‑optimization, manufacturability, and quality initiatives to ensure a price-competitive product.

Maintain system documentation, design rules, product configuration guidelines, and compliance packages.

Qualifications

Must‑haves

• Bachelor’s/Master’s degree in Electrical Engineering , Energy Systems, Controls Engineering, or a related field.
• Strong understanding of grid‑scale BESS architecture and system integration.
• Experience working with multiple subsystems such as PCS, battery containers, AC Skids, and EMS/plant controllers.
• Ability to define system requirements, specify subsystem interfaces, and validate system integration.
• Understanding of grid interconnection requirements, certifiable standards, and BESS compliance guidelines.
• Experience with customer technical discussions, system sizing, and solution definition.

Nice‑to‑haves

• Experience in hybrid power plant solutions (BESS + PV + WTG).
• Familiarity with European grid codes (ENTSO‑E, national TSO/DSO requirements).
• Background in product ownership, system engineering, or platform leadership.
• Experience with industry certification processes for electrical or power systems.
• Knowledge of thermal, mechanical, or communication aspects of BESS solutions.

Location

This role can be based in our offices in Ikast or Hammel, with flexibility for hybrid work.

Ready to take ownership of the system that powers the future?

Apply now! Send us your resume in English and help us design and deliver the next generation of battery energy storage solutions.

Interviews will be scheduled on an ongoing basis.

About KK Group

Building on more than 40 years of experience, KK Group is a leading systems supplier to the renewable energy industry. Our capabilities span developing state-of-the-art technologies, high-quality lean manufacturing, and flexible aftermarket services. KK Group is owned by A.P. Moller Holding, the parent company of the A.P. Moller Group, established in 1904 by Arnold Peter Møller. We are a global and diverse team of over 3,700 people, working towards delivering products and services that enable a future powered by renewable energy.

At KK Group, our culture and DNA are built on a foundation of can-do attitude and innovation. We actively foster an inclusive work environment that embraces diversity, rejects any form of discrimination, and provides equal opportunities for all people. Our commitment lies in cultivating a strong culture centred around health, safety, wellbeing, and effective teamwork.