Senior Lead Engineer Medium Voltage - Energy Storage Systems M/F

KK Group A/S; Ikast; On-site; DKK 80,000 - 100,000; Full time

Job summary

KK Group A/S is seeking a Senior Lead Engineer for Medium Voltage - Energy Storage Systems. This role is pivotal in developing customer-specific solutions while ensuring compliance and reliability in grid deployments. The ideal candidate will play a key role throughout the project lifecycle from design to execution.

Applicants should hold a degree in Electrical Engineering and have substantial experience with medium voltage systems. The position offers a hybrid work model, reflecting the company's commitment to innovation in renewable energy solutions.

Qualifications

• 3–8+ years of experience with medium voltage systems (10–40 kV).
• Strong experience with customer-specific medium voltage solutions.
• Familiarity with FAT and SAT activities.

Responsibilities

• Own customer‑specific product design and MV transformer specification.
• Develop and maintain single line diagrams (SLDs) and schematics.
• Execute product qualification activities with the testing department.

Skills

MV transformer specification

Power converter integration

Protection and coordination knowledge

Hands-on experience with SLDs

Commissioning workflows knowledge

Education

Bachelor’s or Master’s degree in Electrical Engineering

Tools

EPLAN

Job description

Vacancy description

Senior Lead Engineer Medium Voltage - Energy Storage Systems M/F

At KK Group, we are on an exciting international growth journey, helping accelerate the green transition through innovative renewable energy solutions. To support this development, we are looking for a Senior Lead Engineer Medium Voltage to play a central role in the development and industrialization of our customer projects within Battery Energy Storage Systems (BESS).

In this role, you will become an important part of developing customer‑specific medium voltage solutions while ensuring safe, reliable, and grid‑compliant deployments at scale. In addition to core product engineering, you will support customer projects by driving integration activities and delivering optional tailoring to meet site and grid requirements.

You will work across the full project lifecycle, combining product ownership with hands‑on project involvement to ensure efficient and high‑quality execution.

Highlights of the Offer

• Job offer expiration: 18/06/2026
• Type of work: Hybrid
• Role: Individual Contributor / Specialist
• Location: Europe, Denmark, Hammel

Purpose of Role

As per Job add

Responsibilities

As Senior Lead Engineer Medium Voltage, you will play a key role in developing and integrating medium voltage solutions for our customer projects within BESS.

Your responsibilities will include:

• Owning customer‑specific product design and leading MV transformer specification, RMU configuration, and power converter integration, including controls, protections, and interfaces
• Developing and maintaining single line diagrams (SLDs), schematics, protection philosophies, interlock logic, and cable schedules
• Engineering MV protection and coordination according to ANSI/IEC standards, including relays, settings, and fault studies
• Defining and validating interfaces across LV, MV, and DC domains, including auxiliary systems
• Executing product qualification activities together with the test and validation department, including FAT procedures, type test coordination, and compliance documentation
• Supporting customer projects with site‑specific integration, optional customization, BOM alignment, and technical clarifications with EPCs, developers, and utilities
• Contributing to grid interconnection packages and ensuring compliance with applicable codes and standards
• Collaborating with suppliers and manufacturing teams on build‑to‑print packages, quality checks, and DFMA improvements

Requirements

We imagine that you have experience within medium voltage engineering and grid‑connected power systems from an international environment, and that you are motivated by working in a dynamic organization characterized by growth and development.

In addition, you bring:

Must Have:

• Bachelor’s or Master’s degree in Electrical Engineering, Power Systems, or a related discipline
• 3–8+ years of experience with medium voltage systems (typically 10–40 kV) and grid‑connected power conversion
• Strong experience with MV transformer, RMU, and inverter/power converter specification and integration for customer‑specific solutions
• Strong knowledge of protection and coordination, earthing/grounding, switchgear, and interlocking
• Hands‑on experience producing SLDs, panel layouts, and wiring diagrams using tools such as EPLAN or equivalent
• Familiarity with commissioning workflows, including FAT and SAT activities

Nice to Have:

• Experience with BESS, E‑houses, or containerized MV solutions
• Knowledge of grid codes and interconnection standards, including studies using ETAP, PowerFactory, or PSCAD
• Exposure to thermal management, arc flash studies, and auxiliary power design
• Field experience within commissioning, troubleshooting, or failure analysis