Junior Power Systems Engineer

Reactive Technologies LTD; United Kingdom; On-site; GBP 30,000 - 40,000; Full time

Benefits offered by this job

Annual performance-based bonus schemes

Share Options scheme

Flexible working patterns

Private Medical Insurance

Company pension scheme

Job summary

Reactive Technologies LTD is looking for a Junior Power Systems Engineer to support delivery across global electricity networks. The role includes collaborating on customer projects and technical studies while engaging with senior engineers and data scientists.

Ideal candidates will have a Master's or PhD in Power Systems Engineering and a passion for renewable energy. They will benefit from a flexible working environment and a strong commitment to innovation in energy technologies.

Qualifications

• Less than 2 years of industry experience in power systems.
• Experience in R&D is a plus.
• Understanding of net zero challenges.

Responsibilities

• Support delivery of power system solutions across global electricity networks.
• Contribute to customer projects and technical studies.
• Assist in translating customer requirements into technical solutions.

Skills

Power system monitoring

Data analysis

Technical communication

Project planning

Power systems modelling

Education

PhD or University Masters degree in Power Systems Engineering

Tools

DIgSILENT PowerFactory

PSCAD

PSS/e

Python

Matlab

Job description

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

About Reactive Technologies

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

RTL’s GridMetrix® 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 Tradenergy® 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.

Role Description

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.

Key Skills, Experience & Qualifications

Technical Delivery

• 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.

Product Development & Innovation

• 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.

Customer & Commercial Support

• 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.

Collaboration

• 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.

Desirable Experience & Qualifications

• PhD or University Masters degree in Power Systems engineering and less than 2 years industry experience
• Background in power system modelling and dynamic simulations (i.e. DIgSILENT PowerFactory, PSCAD, PSS/e, etc).
• Knowledgeable in power system challenges and phenomena occurring/developing as a result of the transition to net zero and the increased integration of inverter‑based renewable energy sources to the grid, e.g. oscillations, low system strength, low inertia, etc.
• Experience in a R&D environment/role is a plus.
• Background and/or knowledge of programming (i.e. Python, Matlab, etc).
• Experience in costing and tendering response related work.
• Experience in presenting technical content in conferences.
• Experience in a client‑facing role in addition to any operational roles.
• Knowledge of smart grid technologies from a DSO or TSO environment.
• Background in/knowledge of signal processing, and/or pattern recognition/machine learning techniques is a plus.
• Background and/or knowledge of system/architecture design – e.g. SCADA, data protocols and secondary plant configuration is a plus.

Benefits

• Annual performance‑based bonus schemes
• Share Options scheme
• Long service holiday scheme and holiday purchase scheme (UK)
• Company pension scheme
• Private Medical and 4 x life Insurance scheme
• Home working allowance
• Perkbox
• Social Impact Days
• Regular team and company social events
• Flexible working patterns to manage work life balance
• Professional and dynamic work environment

We are an equal opportunity employer. We do not discriminate on the basis of race, religion, colour, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status.