Field Expert Technician (Comms)
RES
Company Overview
Renewable Energy Systems (RES)
Hertfordshire, United Kingdom
1981
Approximately 2,500 employees globally (source: linkedin.com). No publicly disclosed revenue figures for 2023.
What They Do
RES focuses on a diverse range of renewable energy technologies, including wind (both onshore and offshore), solar photovoltaic (PV), battery energy storage systems (BESS), and green hydrogen solutions. The company provides comprehensive services that span the entire lifecycle of renewable energy projects, from initial development and engineering to construction, operations and maintenance (O&M), asset management, and financing. Their expertise allows them to deliver utility-scale projects that meet the growing demand for sustainable energy solutions across various markets, including utilities, corporates, and governments (source: res-group.com).
Projects & Track Record
RES has an impressive portfolio of completed projects, including the 278MW King Mountain Wind Farm in Texas, which was completed in 2001 and was the world's largest at the time. Other notable projects include the 90MW Inner Dowsing offshore wind farm in the UK and the 270MW Lincs offshore wind farm, both of which have contributed to RES's reputation as a leader in the renewable energy sector. The company has also developed significant solar projects, such as the 30MW Webberville solar park in Texas, showcasing its versatility in renewable energy solutions (source: res-group.com).
Recent Developments
In recent years, RES has made significant strides in expanding its project portfolio and capabilities. In 2024, the company secured a Generation License for the 70MW Elmacık Wind Power Plant in Turkey and advanced the development approval for the Tarong West Wind Farm in Queensland, Australia, which is set to provide power for approximately 230,000 homes. Additionally, RES has partnered with Octopus Energy on a £3 billion investment in green hydrogen in the UK, further solidifying its commitment to innovative renewable energy solutions (source: keyfactsenergy.com).
Working There
RES offers a variety of roles across multiple departments, including development, engineering, construction, operations and maintenance, asset management, finance, and legal services. The company emphasizes a collaborative culture, with a commitment to diversity and inclusion, and provides a stimulating work environment for its employees. The global headquarters in Kings Langley, UK, features modern facilities designed to support employee well-being, such as bike racks and showers, promoting a healthy work-life balance (source: res-group.com).
Last updated on Feb 23, 2026 | Report an issue
Job Description
We're the world's largest independent renewable energy company. We're guided by a simple yet powerful vision: to create a future where everyone has access to affordable, zero carbon energy.
We know that achieving our ambitions would be impossible without our people. Because we're tackling some of the world's toughest problems, we need the very best people to help us. They're our most important asset so that's why we continually invest in them.
RES is a family with a diverse workforce, and we are dedicated to the personal professional growth of our people, no matter what stage of their career they're at. We can promise you rewarding work which makes a real impact, the chance to learn from inspiring colleagues from across a growing, global network and opportunities to grow personally and professionally.
Our competitive package offers rewards and benefits including pension schemes, flexible working, and top-down emphasis on better work-life balance. We also offer private healthcare, discounted green travel, 24 days holiday (with an additional discretionary day given by the company) with options to buy/sell days, enhanced family leave and four volunteering days per year so you can make an impact somewhere else.
The Position
The Field Expert Technician (Comms) is a field-based role performing specialist services on the Communications and SCADA systems of battery storage and solar PV plants. You will be part of a team of industry-leading inverter specialists that support our wider O&M team in delivering exceptional plant performance and also provide on-site intervention for asset owners on plants external to our O&M portfolio.
You will be a qualified electrician with experience maintaining MW-scale power plants, with a keen interest in working on communications and SCADA systems. This is a permanent role and an overtime system is in place.
A company vehicle, smart phone and laptop/tablet will be provided. RES provides a comprehensive package of benefits including contributory pension, private health insurance and investment in role-specific training, and as a Specialist Technician (Comms), you will be supported in receiving all relevant manufacturer training to allow us to deliver this service.
Key Accountabilities
- Provide remote troubleshooting and on-site support to O&M technicians in rectification of faults on the portfolio's Communications and SCADA systems
- Support the regional O&M teams on-site with corrective and preventive maintenance where required
- Contribute to the internal knowledge base in relation to comms and SCADA, and share knowledge across the wider team
- Develop method statements in collaboration with the Operations Manager, HSQE Team and Comms/SCADA Specialists
- Identify any knowledge and training gaps, and put forward relevant training courses to assist the team with upskilling
- Identify and propose upgrades to the specialist systems (considering obsolescence and reliability)
- Support the Performance Analysts and SMART team in developing API connections to new sites as required
- Any other duties, for example with other specialist systems as required by the business needs
Knowledge
- Good knowledge and understanding of solar PV technology
- Knowledge of central inverters is essential
- Technical understanding of AC and DC systems within utility-scale solar farms
- Good knowledge and understanding of SCADA, instrumentation and communications networks is required
- Good knowledge and understanding of HVAC, fire protection, security systems is desirable
- Good knowledge and understanding of battery storage technology, although training can be given in this area
Skills
- Approach to safe working practices
- Excellent communication skills, fluent written and spoken English
- Able to respond to changing priorities and emergent issues
- Enthusiasm for personal development
- Able to read and interpret schematic diagrams and technical manuals
- Computer skills for writing reports, reporting progress and communicating by email
- Passion, Accountability, Collaboration, and Excellence
Experience
- Experience, reading, writing and amending Risk Assessments and Method Statements
- Experience working with equipment vendors to support diagnosis of faults
- DC and LV installation, fault finding, testing and commissioning
- Experience working remotely
- Solar PV installation and O&M experience (MW-scale or large commercial ground-mount)
- Battery storage installation and O&M experience (MW-scale) is desirable
- Experience installing or maintaining ethernet and fibre optic communications
- Experience working with SCADA or data monitoring systems
- Work with Central inverters
- Work with High Voltage switchgear
Qualifications
- Full UK driving license
- Qualified Electrician
- Inspection and testing qualifications (C&G 2391 or 2394/5) highly valued
- First aid qualifications
- Health & Safety qualifications (e.g. IOSH Managing Safely, SMSTS)
At RES we celebrate difference as we know it makes our company a great place to work. Encouraging applicants with different backgrounds, ideas and points of view, we create teams who work together to solve complex problems and design practical solutions for our clients. Our multiple perspectives come from many sources including the diverse ethnicity, culture, gender, nationality, age, sex, sexual orientation, gender identity and expression, disability, marital status, parental status, education, social background and life experience of our people.
Apply now
Job expired?Please let RES know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!
Apply now
Job expired?Please let RES know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!
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About the role
May 11, 2026
Full time
Company
- United Kingdom
Qualified Electrician with relevant experience
UTC+00:00