Commissioning Engineer – Junior / Mid-Level / Senior / Manager

UK, London (Europe focused)

A leading global energy technology company is expanding its international Commissioning team and is looking to hire Commissioning professionals across Junior, Mid-Level, Senior and Manager levels.

The business is at the forefront of the global energy transition, delivering large-scale battery energy storage and energy technology solutions across international markets. As the organisation continues to grow, this is an opportunity to join a technically ambitious company working on some of the largest and most advanced energy projects globally.

Depending on your level of experience, you will support or lead the commissioning of large-scale Battery Energy Storage Systems (BESS) and associated energy technology.

The role is highly international and hands-on, working closely with engineering, project management, construction, quality and operations teams to ensure systems are installed, tested, commissioned and handed over safely and effectively.

Global travel is a core part of the position. Candidates must be genuinely comfortable and happy with significant international travel and working on project sites globally.

Junior Commissioning Engineer

Responsibilities

• Support commissioning activities for BESS and associated energy systems.
• Assist with pre-commissioning checks, inspections, testing and system validation.
• Support fault finding and troubleshooting of technical issues.
• Assist senior engineers with commissioning documentation and reports.
• Work alongside engineering and site teams to ensure equipment is correctly installed and prepared for commissioning.
• Follow commissioning procedures, HSE requirements and technical standards.
• Develop technical knowledge across BESS, electrical systems, controls and associated technologies.
• Support Site Acceptance Testing (SAT) and system handover activities.
• Work alongside experienced commissioning engineers to develop practical technical expertise.
• Travel internationally to support project commissioning activities.

Requirements

• Engineering degree, HNC/HND or equivalent qualification.
• Some exposure to electrical systems, commissioning, automation, controls or energy technology.
• Internship, graduate or early-career engineering experience is welcomed.
• Strong technical curiosity and willingness to learn.
• Strong problem-solving skills.
• Fluent Chinese – C1 level or above (NON-NEGOTIABLE).
• Professional working proficiency in English.
• Genuine willingness and ability to travel globally on a regular basis.

Mid-Level Commissioning Engineer

Responsibilities

• Lead commissioning activities for assigned systems and project areas.
• Carry out testing, configuration, troubleshooting and validation of BESS and associated electrical systems.
• Identify and resolve technical issues during commissioning.
• Coordinate with engineering, construction and project teams to ensure commissioning activities remain on schedule.
• Review technical documentation, drawings, test procedures and commissioning plans.
• Support FAT, SAT and site acceptance activities.
• Produce commissioning reports and maintain accurate technical documentation.
• Liaise with customers, contractors and suppliers during commissioning.
• Support and mentor junior engineers.
• Contribute to the development of commissioning procedures and best practice.
• Travel extensively to project sites globally.

Requirements

• Typically 2–5+ years' relevant engineering or commissioning experience.
• Experience with electrical systems, commissioning, testing or industrial equipment.
• Experience troubleshooting technical issues independently.
• Experience working on complex engineering projects or at customer/project sites.
• Fluent Chinese – C1 level or above (NON-NEGOTIABLE).
• Professional working proficiency in English.
• Must be genuinely happy with extensive global travel and spending significant time internationally on project sites.

Senior Commissioning Engineer

Responsibilities

• Take technical ownership of commissioning activities across major BESS projects.
• Plan and execute commissioning strategies, testing procedures and site acceptance activities.
• Lead troubleshooting and root-cause analysis of complex electrical, control and system-level issues.
• Coordinate commissioning activities across multiple engineering disciplines.
• Work closely with project management, engineering, construction and customers to ensure successful project delivery.
• Review and approve commissioning documentation, test plans and procedures.
• Lead FAT, SAT, energisation, testing and final system handover activities.
• Provide technical guidance and mentorship to junior and mid-level engineers.
• Manage commissioning risks, technical issues and project priorities.
• Represent the commissioning function in meetings with customers, contractors and other stakeholders.
• Contribute to continuous improvement of commissioning processes and standards.
• Take a leading role in international project deployments and commissioning activities.

Requirements

• Typically 5–8+ years' relevant experience in commissioning or a closely related technical discipline.
• Strong experience leading commissioning activities and troubleshooting complex systems.
• Experience within BESS, renewable energy, power electronics, industrial automation or a similar environment is highly desirable.
• Demonstrable ability to lead technical activities and mentor less experienced engineers.
• Strong communication and stakeholder management skills.
• Fluent Chinese – C1 level or above (NON-NEGOTIABLE).
• Professional working proficiency in English.
• High mobility and a genuine willingness to travel globally extensively.

Commissioning Manager

Responsibilities

• Take overall responsibility for commissioning activities across projects or a portfolio of projects.
• Develop commissioning strategies, plans, schedules and resource requirements.
• Lead and manage commissioning engineers and site teams.
• Coordinate commissioning activities with project management, engineering, construction, quality and operations.
• Manage commissioning budgets, timelines, resources and technical risks.
• Act as the senior technical point of contact for customers, EPC partners, contractors and other stakeholders.
• Oversee FAT, SAT, energisation, testing and final handover activities.
• Ensure commissioning is completed safely, efficiently and in accordance with project requirements.
• Resolve complex technical and commercial issues affecting commissioning delivery.
• Establish and improve commissioning procedures, standards and best practices.
• Provide technical leadership, coaching and development to the wider commissioning team.
• Support the wider business with commissioning strategy and project planning.
• Lead the international deployment of commissioning teams across global projects.

Requirements

• Typically 8+ years' relevant experience, with significant commissioning and project leadership experience.
• Proven experience managing commissioning teams and complex technical projects.
• Strong understanding of electrical systems, controls, BESS or related energy technologies.
• Experience managing customers, EPCs, contractors and multidisciplinary project teams.
• Strong leadership, planning and problem-solving skills.
• Fluent Chinese – C1 level or above (NON-NEGOTIABLE).
• Professional working proficiency in English.
• Must be highly mobile and genuinely happy to travel globally on a regular and potentially extensive basis.

Non-Negotiable Requirements – All Levels

Regardless of seniority, candidates must meet the following requirements:

1. Chinese language proficiency – C1 level or above.
2. Fluent English.
3. Genuine willingness and ability to travel globally.
4. Comfortable working for extended periods on international project sites.
5. Comfortable working in a highly international, fast-paced environment.
6. Strong technical and problem-solving capabilities.
7. Willingness to work flexibly around project requirements and commissioning schedules.

This is an opportunity to join a global energy technology business at the forefront of the rapidly growing battery energy storage market.

You will work on major international projects, gain exposure to cutting-edge energy technology and collaborate with engineering and project teams across multiple countries.

For junior engineers, the role provides an excellent platform to develop into a specialist within BESS commissioning.

For experienced engineers and managers, it offers the opportunity to take ownership of major international projects, lead technical teams and play a significant role in the company's continued global expansion.

If you're interested, please apply below: