Junior Power Systems Engineer

Junior Power Systems Engineer

Posted: 06 July 2026

Department: PSE and Technical Solutions
Reports to: Head of PSE
Location: UK Head Office (Hybrid Working)
Contract: Full-time, Permanent

Reactive Technologies (RTL) is an innovative energy technology solution provider with the mission to help enable the global renewable energy transition.

RTL’s Grid Metrix® platform is a unique stability measurement service for power grid operators (transmission and distribution), to enable power grid operators more precise control of their grid, therefore operate more safely and cost‑efficiently and utilise more renewable energy in the power systems to help them achieve their Net Zero targets. RTL also offers unique grid insights and forecasts to power traders through it’s Trad energy® service.

This enables our customers to make smarter and faster trading decisions. We also anticipate using our own grid data to identify new insights to enable new services to be developed more widely across the energy sector.

RTL has approx. 200+ patents granted globally, with offices in the UK, Finland and others being opened around the world. To date it has achieved more than 100% revenue growth YoY and its business plan will continue this level of growth based on a strong global pipeline. RTL is also backed by high profile investors including BGF, Breakthrough Energy Ventures, Eaton, Toshiba and Accenture.

If you are a dynamic Power Systems Engineer with a strong track record of excellence and are passionate about playing a key part in the global renewable energy transition, then you could be right for our growing team of energy industry and technology experts to help our mission of delivering low carbon energy systems globally.

As a Power Systems Engineer, you will support the delivery and development of Reactive’s power system measurement and monitoring solutions across global electricity networks. Working closely with senior engineers, data scientists, project managers and commercial teams, you will contribute to customer projects, technical studies and product development initiatives. This role provides an excellent opportunity to develop expertise in power system stability, grid analytics and emerging energy technologies while working with leading utilities, system operators and energy market participants globally.

• Support the delivery of customer projects involving power system monitoring, measurement and analysis.
• Undertake power system studies, investigations and technical assessments.
• Contribute to technical reports, customer presentations and project documentation.
• Assist in translating customer requirements into technical solutions and deliverables.
• Support project planning, estimation and risk identification activities.

• Support the development and enhancement of Reactive’s analytical and monitoring solutions.
• Apply power systems modelling, data analysis and engineering judgement to solve technical challenges.
• Assist in validating new methodologies, models and algorithms.
• Work closely with R&D teams to support innovation and product improvement initiatives.

• Support customer meetings and workshops by providing technical expertise.
• Help build customer confidence through clear and professional communication.
• Assist commercial teams with technical proposals, tenders and pre‑sales activities.
• Develop a strong understanding of customer challenges associated with energy transition and grid stability.
• Able to combine technical understanding with commercial awareness, supporting techno‑economic assessments and communicating technical concepts clearly to both technical and non‑technical stakeholders.

• Work collaboratively across Engineering, Research, Product, Delivery and Commercial teams.
• Share technical knowledge and lessons learned across the business.
• Support continuous improvement initiatives and quality processes.

• PhD or University Masters degree in Power Systems engineering and less than 2 years industry experience
• Background in…