System Manager, AC Skid – BESS (Medium Voltage Containerized Systems)

KK Group; Region Midtjylland; Hybrid; DKK 900,000 - 1,300,000; Full time

Job summary

KK Group is seeking a System Manager, AC Skid to assume full system-level responsibility for the design, specification and qualification of the AC Skid used in grid-scale Battery Energy Storage Systems (BESS).

The role is based in Denmark with hybrid work options, located in Ikast or Hammel. You will lead supplier selection and governance, own the MV transformer, RMU, and PCS specifications, and ensure safety, compliance, and lifecycle performance across the project lifecycle.

Qualifications

• Bachelor’s or Master’s degree in Electrical Engineering, Power Systems or Energy Engineering.
• Experience with AC Skids, E-houses, containerized MV designs, or BESS systems.
• Knowledge of MV transformers, RMUs, switchgear and MV safety.
• Familiarity with DFMEA, FAT processes and utility compliance documentation.
• Background in system engineering or product ownership roles.

Responsibilities

• Serve as the overall system-responsible owner for the AC Skid and its architecture, safety, quality and lifecycle performance.
• Lead supplier selection, qualification, and governance for mechanical skid design.
• Own the technical selection and specification of MV transformer, RMU, and PCS.
• Ensure correct electrical and functional integration of subsystems (MV/RMU/PCS, grounding, cooling, cabling).
• Review supplier documents, FAT results, and qualification data; drive cost optimization and a high-quality product for the BESS platform.
• Support pre‑sales and quotation phases with technical clarifications and alignment to customer requirements.

Skills

System ownership

Supplier governance

Technical specification

Pre-sales support

Grid codes knowledge

DFMEA/FAT awareness

Education

Electrical Engineering degree

Job description

Shape the backbone of the energy transition

Are you passionate about building reliable, future-ready energy systems?

Do you enjoy working at the intersection of electrical engineering, system integration, and real-world impact?

About the Role

We are looking for a highly skilled System Manager, AC Skid to take full system-level responsibility for the design, specification, and qualification of the AC Skid used in grid-scale Battery Energy Storage Systems (BESS).

The AC Skid integrates:

• MV Transformer (selected and specified by us)
• Ring Main Unit (RMU) (selected and specified by us)
• Power Conversion System (PCS) (designed in-house)
• Mechanical Skid structure and enclosure (detailed design performed by a supplier)

The System Manager ensures that the entire AC Skid forms a safe, compliant, reliable, and cost-competitive system, while coordinating supplier-driven detailed design and internal component ownership.

You will also support customer clarification and quotation phases, ensuring the AC Skid configuration aligns with utility, project, and technical requirements.

Key Responsibilities:

Serve as the overall system‑responsible owner for the AC Skid, covering electrical/functional architecture, safety, quality, and lifecycle performance.

Lead supplier selection, qualification, and governance for the mechanical Skid design, ensuring alignment with system requirements, standards, and cost targets.

Own the technical selection and specification of:

• MV transformer
• RMU
• PCS (in-house designed converter integration and interfaces)

Ensure correct electrical and functional integration of all subsystems:

• MV transformer – RMU – PCS
• Grounding/earthing
• Cooling and auxiliary power
• Cabling, interlocks, protections, and monitoring

Review and validate supplier designs for the mechanical skid

Ensure compliance with relevant standards:

• MV equipment (IEC/ANSI)
• Transformer and switchgear safety
• Environmental, mechanical, and fire safety

Review supplier documentation, test results, FAT reports, and qualification data.

Drive quality and cost optimization, ensuring a price-competitive and high-quality AC Skid product for the BESS platform.

Support customer clarification and quotation phases, ensuring:

• Technical feasibility
• Clear interpretation of customer requirements
• Alignment between project needs and AC Skid capabilities

Collaborate cross‑functionally with electrical, mechanical, controls, product, procurement, and quality teams to ensure seamless AC Skid integration.

Qualifications:

Must-haves

Bachelor’s/Master’s degree in Electrical Engineering, Power Systems, Energy Engineering, or similar.

Strong understanding of:

• MV transformers, RMUs, switchgear, and MV safety
• MV protection, grounding/earthing, and interlocking
• Cooling and auxiliary systems

Experience working with suppliers on:

• Detailed mechanical design reviews
• Documentation review and compliance checks
• Quality and cost evaluations

Ability to support technical clarifications during pre‑sales and quotation phases.

Experience with AC Skids, E-houses, containerized MV designs, or BESS systems.

Knowledge of grid code requirements for MV-connected BESS or hybrid power plants.

Familiarity with DFMEA, FAT processes, and utility compliance documentation.

Background in system engineering or product ownership roles.

Location

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

Ready to Grow Your Impact?

If you’re excited by this opportunity, we would love to hear from you.

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.