Find a job 
Featured Companies 
Featured Universities 
For Companies At a Glance
- Tasks: Lead the commissioning of HV electrical systems for a major Battery Energy Storage project.
- Company: Join a top energy infrastructure developer in Manchester.
- Benefits: Competitive day rate, flexible contract, and hands-on experience in renewable energy.
- Other info: Dynamic work environment with opportunities for professional growth.
- Why this job: Make a real impact on sustainable energy solutions while advancing your career.
- Qualifications: Experience in commissioning HV systems and knowledge of renewable energy projects.
Role – Commissioning Engineer (BESS) – Contract
Location – Manchester + Site-Based
Mint Selection are working with a leading energy infrastructure developer delivering a 600MW Battery Energy Storage (BESS) project in Manchester. They are seeking an experienced Commissioning Engineer on a contract basis to support the delivery and energisation of this large-scale project.
This role will focus on the commissioning of HV electrical systems and battery storage infrastructure, working closely with EPC contractors, OEMs, and the wider project team to ensure safe and compliant energisation and handover.
Scope of Work
- Execute commissioning activities across BESS and associated HV infrastructure (typically 33kV–132kV)
- Carry out pre-commissioning, functional testing, and energisation of electrical systems
- Review and implement commissioning procedures, method statements, and risk assessments
- Coordinate with OEMs (battery systems, inverters, SCADA) during testing and commissioning phases
- Interface with DNO / National Grid to support grid compliance and energisation approvals
- Support HV switching operations (if authorised) in line with site procedures
- Identify, troubleshoot and resolve technical issues during commissioning
- Ensure all activities are conducted in line with HSE standards and site safety rules
- Support project documentation including test records, reports, and handover documentation
Experience to be Considered
- Proven experience as a Commissioning Engineer within renewable energy, power generation or infrastructure
- Strong experience commissioning HV electrical systems (11kV–132kV)
- Experience with BESS, substations, or grid connection projects
- Knowledge of protection systems, SCADA and control systems
- Familiarity with UK grid compliance and commissioning standards
- HV Authorised Person (AP) or SAP (desirable, not essential)
- Electrical Engineering background or equivalent experience
This is a contract opportunity with a fixed start yet to be decided. Day rate negotiable depending on experience.
Please note: Candidates must have the right to work in the UK.
If you are interested, please apply within or contact Sam Nice directly for further information.
Commissioning Engineer - 12 Month Contract in Bolton employer: Mint Selection | B Corp
Contact Detail:
Mint Selection | B Corp Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Commissioning Engineer - 12 Month Contract in Bolton
✨Tip Number 1
Network like a pro! Reach out to industry contacts on LinkedIn or at events. We all know that sometimes it’s not just what you know, but who you know that can land you that dream role.
✨Tip Number 2
Prepare for interviews by practising common questions and scenarios related to commissioning engineering. We recommend doing mock interviews with friends or using online platforms to boost your confidence.
✨Tip Number 3
Showcase your skills! Create a portfolio or a presentation that highlights your past projects and achievements in commissioning. This can really set you apart from other candidates when you’re in front of potential employers.
✨Tip Number 4
Don’t forget to apply through our website! We’ve got loads of opportunities waiting for you, and applying directly can sometimes give you an edge over others. Let’s get you that contract!
We think you need these skills to ace Commissioning Engineer - 12 Month Contract in Bolton
Some tips for your application 🫡
Tailor Your CV: Make sure your CV is tailored to the Commissioning Engineer role. Highlight your experience with HV electrical systems and any relevant projects you've worked on, especially in renewable energy or battery storage.
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're the perfect fit for this role. Mention specific experiences that align with the job description and show your enthusiasm for the project.
Showcase Relevant Skills: Don’t forget to showcase your skills related to commissioning procedures, risk assessments, and troubleshooting. We want to see how you can contribute to the safe and compliant energisation of the project.
Apply Through Our Website: We encourage you to apply through our website for a smoother application process. It’s the best way for us to receive your application and get you one step closer to joining our team!
How to prepare for a job interview at Mint Selection | B Corp
✨Know Your Stuff
Make sure you brush up on your knowledge of HV electrical systems and battery storage infrastructure. Be ready to discuss your previous experiences with commissioning activities, especially in renewable energy projects. This will show that you’re not just familiar with the theory but have practical experience too.
✨Safety First
Since this role involves working with high voltage systems, it’s crucial to demonstrate your understanding of HSE standards and site safety rules. Prepare examples of how you've prioritised safety in past projects, and be ready to discuss any relevant certifications or training you have.
✨Communicate Clearly
You’ll be coordinating with various teams, including EPC contractors and OEMs, so strong communication skills are a must. Practice explaining complex technical concepts in simple terms, as this will help you convey your ideas effectively during the interview.
✨Prepare Questions
Interviews are a two-way street, so come prepared with questions about the project and the team you'll be working with. This shows your interest in the role and helps you gauge if the company is the right fit for you. Ask about their approach to grid compliance and how they handle technical challenges during commissioning.