Electrical Design Manager – Solar / BESS in Colchester, Essex

ARM is currently in partnership with an Essex-based Renewable energy company to recruit an Electrical Design/Engineering Manager.

Our client specialises in the development, design, construction, and maintenance of renewable energy solutions, primarily ground-mount and rooftop solar with battery storage. They pride themselves on professional construction standards, exceptional customer care, and a strong commitment to continuous improvement.

This is an outstanding opportunity to join a forward-thinking business that offers genuine career progression and the chance to play a leading role in the UK's renewable energy transition.

The Role
As Electrical Design/Engineering Manager, you will take full responsibility for leading the company's electrical design function. You will combine hands-on technical design expertise with leadership, overseeing a small but growing design team, managing third-party designers, and ensuring compliance, cost-effectiveness, and efficiency across all projects.

You'll work closely with the senior leadership team, providing technical guidance, driving quality, and helping the business scale to the next level.

Key Responsibilities

• Lead and manage the internal electrical design team, mentoring and supporting their professional growth

• Carry out and review detailed electrical designs and calculations (AC/DC cable sizing, LV AC grading studies, cabinet/connection design)

• Produce and check SLDs, electrical drawings, and predesign layouts

• Support G99 and G100 applications, liaising with inverter manufacturers and ensuring compliance

• Design and commission communication/monitoring systems, including remote support

• Oversee Bills of Materials, costings, and Scopes of Work to align technical and commercial outcomes

The Person
To be successful, you will bring:

• A strong background in electrical design/engineering, ideally within renewable energy, solar PV, or battery storage

• Solid understanding of industry compliance and electrical design software

• Proven leadership skills with the ability to mentor and manage a team

• A proactive, ambitious mindset - keen to grow with a rapidly scaling business

The Package

• Salary circa £65,000 depending on experience

• Company vehicle provided

• Monday-Friday office hours (37.5 hours per week)

• Ongoing training and career development opportunities

• A collaborative, innovative team environment

Next Steps
This is a fantastic chance to join a business making a real impact in renewable energy. If you're looking for a role where you can lead, influence, and grow, I'd love to hear from you.