Technical Support Engineer

Stern Energy; Greater London; On-site; GBP 60,000 - 80,000; Full time

Job summary

Stern Energy is seeking a Technical Support Engineer to join their Operations & Maintenance team. This role involves troubleshooting complex technical issues, supporting field engineers, and driving technical improvements across their solar operations. The ideal candidate will have extensive experience in solar O&M and electrical systems, ensuring optimal performance and reliability of the company's assets.

Benefits

Employee Assistance Programme

Company Sick Pay

Wellness Wednesday

Extensive Learning and Development Programme

Company Mobile Phone

Laptop

25 Days Annual Leave

Qualifications

• At least five years’ experience in electrical systems maintenance.
• Proven experience in solar O&M with troubleshooting skills.

Responsibilities

• Provide advanced remote support to field engineers.
• Analyse plant performance data to identify issues.
• Lead root cause analysis investigations for major incidents.

Skills

Problem Solving

Attention to Detail

Communication Protocols

Technical Support

Education

NVQ Level 3 Electrical Certification

Tools

MS Office

Job description

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Are you looking for a challenge and want to embark on a new journey? Then look no further!

At Stern Energy we have an brand new opportunity for a Technical Support Engineer. This position has come at an exciting time for our fast-growing company.

We are seeking a dedicated and highly skilled Solar O&M Technical Specialist to join our Operations & Maintenance team. This role plays a pivotal part in supporting field service engineers by offering expert-level assistance in troubleshooting, diagnosing, and resolving complex technical issues. The position will also focus on driving technical improvements and process optimisation across the portfolio.

As a secondary function, the Technical Specialist will provide second-level technical support to other group subsidiaries across Europe and beyond, helping to strengthen the group’s technical consistency and knowledge base.

Who are we? Stern Energy operates ground mounted photovoltaic systems for over 769MW in the UK. We are among the largest operators in Europe with activities in 5 Countries and over 2.8 GW under management. We are specialised in proposing and executing revamping and repowering projects to enhance the performance of the assets we operate.

How do we work?

Our professional commitment is to translate the expertise gained into maximum plant efficiency and maintenance of long-term performance. We provide an integrated, timely and effective service based on a "Total Quality" approach, of experience, know-how and nationwide services.

We continually invest in equipment and technology to refine our procedures and operating methods; we provide our services through internal staff to ensure autonomy and maximum responsiveness. Transparency is key to our work so that our customers can rely on constant control of the plants and the quality of services provided. Customer relations is our passion to building a lasting relationship of trust.

We have a dedicated internal team of specifically qualified, multi-disciplined engineers boasting significant expertise, all of whom are solution providers.

The Technical Support Engineer shall give availability on working from time to time during weekends and bank holidays.

Main responsibilities

• Provide advanced remote support to field engineers, assisting with complex fault-finding and resolution.
• Analyse plant performance data using monitoring systems (e.g., SCADA, inverter portals) to identify issues and opportunities for improvement.
• Lead or support root cause analysis (RCA) investigations for major incidents or repeated failures.
• Maintain and develop technical documentation, fault-finding guides, and repair procedures.
• Liaise with inverter and equipment manufacturers for escalated technical support cases, RMAs, and firmware updates.
• Collaborate with the field teams to identify common failure modes and propose mitigation strategies.
• Assist with commissioning and performance validation for new sites or retrofit works.
• Site attendance for technical support on inverter level failures unable to be resolved via remote support.
• Act as the main point of contact for the portfolio and management team regarding technical advice.
• Support the portfolio and management team with work order scheduling and dispatch.

Group-Level Support – Secondary Support

• Act as the technical point of contact for second-level support across international subsidiaries.
• Assist overseas teams with technical escalations, troubleshooting, and systemic issue identification.
• Standardise troubleshooting workflows, fault codes, and classification across the group.
• Contribute to the development of group-wide knowledge base articles, engineering bulletins, and lessons-learned documents.
• Participate in technical alignment meetings and working groups to ensure consistency in service delivery.

Further Responsibilities

• Track and report on technical KPIs such as Mean Time to Repair (MTTR), fault recurrence, and inverter performance.
• Support the evaluation and rollout of new tools, technologies, or technical processes.
• Assist with the training and upskilling of junior engineers and new team members.
• Participate in the preparation and technical review of O&M manuals, method statements, and risk assessments.
• Contribute to warranty claim processes and support documentation for insurance or contractual purposes.
• Support the implementation of continuous improvement initiatives related to maintenance strategies, asset performance, and system reliability.
• Work closely with the CMMS/data team to improve ticket categorisation and asset data quality.

Skills and qualifications

• At least five years’ working experience in the installation and maintenance of electrical systems for industrial sites;
• Proven experience in solar O&M, with a strong background in troubleshooting and support.
• Good knowledge on inverter systems, communication protocols and monitoring platforms.
• Proficient with single line diagrams and electrical schematics.
• Strong problem-solving skills, attention to detail & a methodical approach.
• Good knowledge of MS office tools;
• Valid and clean car driving license;
• NVQ Level 3 electrical certification.

A great benefit package to include:

• Employee Assistant programme
• Company sick pay
• Great company culture and regular social events
• Wellness Wednesday for 30 minutes every week for mindfulness on top of lunch break
• Extensive learning and development programme
• Company mobile phone
• Laptop
• 25 days of annual leave plus Bank holidays
• Hours worked for call outs to be paid at the end of each month.
• standby call out payments

At Stern Energy, we are deeply committed to promoting equity and inclusion, and we celebrate the diversity of our team—both those who are with us today and those who will join us in the future. We encourage applications from individuals of all backgrounds, regardless of gender, gender identity, national origin, religion, social, cultural, or ethnic background, sex, sexual orientation, age, disability, pregnancy, veteran status, or any other characteristic protected by law. Our hiring decisions are based solely on business needs, job requirements, and qualifications. We strive to be an equal opportunity employer, fostering an inclusive environment where everyone is respected and free from discrimination or harassment.

Seniority level

• Seniority level

  Not Applicable

Employment type

• Employment type

  Full-time

Job function

• Industries

  Renewable Energy Semiconductor Manufacturing

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