Project Engineer (Data Centres & Industrials)

Octoenergy; Greater London; On-site; GBP 70,000 - 110,000; Full time

Job summary

Octopus Energy Group is seeking a Project Electrical Engineer to own electrical delivery on first-of-a-kind power projects for data centres and large industrials in the UK.

You will manage the programme and development budget from concept through energisation, co-ordinate consultants, ICPs, and grid interfaces, and lead design reviews.

The role requires MV/HV system knowledge, a Master’s degree in electrical engineering, UK driving licence and willingness to travel to site.

Qualifications

• Master’s degree in electrical or power systems engineering; CEng welcome.
• 5+ years delivering energy or infrastructure projects with MV/HV experience.
• Experience with substations, grids, data centres, utilities; site and live assets.
• Experience managing programme and budget on development/pre-construction projects.
• UK GB/European grid connection knowledge and grid codes.

Responsibilities

• Own the programme and development budget from concept to energisation.
• Lead electrical concept through to sign-off and design reviews.
• Lead grid interface with DNO/TO/NESO, manage applications and milestones.
• Credible capex inputs across plant, substations, civils and enabling works.
• Coordinate multi-disciplinary design and deliver unique, first-of-a-kind scopes.

Skills

Program management

Budget management

Stakeholder coordination

MV/HV systems knowledge

Electrical design coordination

Education

Master’s degree in electrical/power systems

CEng welcome

Tools

ETAP

PowerFactory

IPSA

PSS/E

PSCAD

Python

SCADA

IEC 61850

Modbus

DNP3

Job description

About the role

Octopus is building a new business line delivering low-cost, reliable, clean energy and faster speed-to-power for data centres and large industrials. We're looking for a Project Electrical Engineer to be the electrical owner on first-of-a-kind power projects - private wire, behind-the-meter generation and storage, MV and HV grid connections.

This is a technical role with a unique expanded scope to broader infrastructure project management. Early on you are the project manager: you hold the programme, the development budget and the external parties, from concept design through connection offer to design freeze and financial close. From there you stay on as the electrical owner through construction, commissioning and energisation, with a delivery team around you.

• Own the programme and the development budget. Schedule from early concept to design freeze - siting, connection application, planning, consents, procurement, long-lead items - worked back from the customer's energisation date. Appoint and manage consultants, ICPs and study providers. Surface risk early and clearly communicate them to the stakeholders.
• Own the electrical concept through to sign-off. Single-line diagrams, general arrangements, switchgear and plant layouts, cable routes, metering and comms architecture. Direct and interrogate the studies (load flow, short-circuit, protection coordination, arc flash, earthing, power quality). Chair design reviews and stage gates, and take options to the Project Lead and customer with a recommendation.
• Lead the grid interface. DNO, TO and NESO - applications and offers, technical requirements, securities and milestones, contestable and non-contestable scope, ICP/IDNO coordination, MPAN registration.
• Budget ownership through completion. Credible capex inputs for the project model across plant, substation, civils and enabling works, with value engineering and optioneering. Then FAT/SAT witnessing, commissioning plans and sequences of operation, energisation and handover.
• Take on what you haven't done before. First-of-a-kind means no precedent, no standard design and no colleague who's done it. Get to a working understanding of an unfamiliar technology or scope fast, and deliver it.

• Master’s degree , or equivalent, in electrical or power systems engineering. CEng welcome, not essential.
• 5+ years delivering energy or infrastructure projects, with a strong grounding in MV and HV systems.
• Real infrastructure experience - substations, networks, industrial plant, data centres, utilities, water or transport. We care that you've dealt with ground conditions, easements, consents, tie‑ins to live assets and construction sequencing. This is not a grid‑only role.
• You've personally held a programme and a budget on a development or pre‑construction project.
• A GB/European grid connection taken from connection offer to grid code compliance and energisation, with working knowledge of the Grid Code, CUSC, SQSS, G99/G100, ENA engineering recommendations and BS 7671.
• Able to coordinate a multi‑discipline design where you're not the expert in every discipline - and to spot a weak answer from a civil or mechanical engineer.
• Comfortable as the single point of accountability with an incomplete picture, holding external parties accountable without formal authority.
• Full UK driving licence and willing to travel to site.

It would be great if you have BESS, private wire, microgrid or behind-the-meter generation; data centre or mission-critical power (MV/LV distribution, UPS, generators, redundancy topologies, commissioning levels); study tools (ETAP, PowerFactory, IPSA, PSS/E, PSCAD) or Python; IEC 61850, Modbus, DNP3, SCADA and metering data flows; NEC or FIDIC contract and change management. Project management credentials (APM, PRINCE2, MS Project, Primavera) - though we care far more about what you've delivered.

Why else you'll love it here

• Wondering what the salary for this role is? Just ask us! On a call with one of our recruiters it's something we always cover as we genuinely want to match your experience with the correct salary. The reason why we don't advertise is because we honestly have a degree of flexibility and would never want salary to be a reason why someone doesn't apply to Octopus - what's more important to us is finding the right octofit!
• Octopus Energy Group is a unique culture. An organisation where people learn, decide, and build quicker. Where people work with autonomy, alongside a wide range of amazing co‑owners, on projects that break new ground. We want your hard work to be rewarded with perks you actually care about! We were named the UK's top company to work for in 2025, and we ranked in the top ten in the Sunday Times Best Places to Work 2026. Our Group CEO, Greg has recorded a podcast about our culture and how we empower our people. We’ve also been placed in the top 10 companies for senior leadership.
• Visit our UK perks hub – Octopus Employee Benefits

Are you ready for a career with us? We want to ensure you have all the tools and environment you need to unleash your potential.Need any specific accommodations?Whether you require specific accommodations or have a unique preference, let us know, and we'll do what we can to customise your interview process for comfort and maximum magic!

Studies have shown that some groups of people, like women, are less likely to apply to a role unless they meet 100% of the job requirements. Whoever you are, if you like one of our jobs, we encourage you to apply as you might just be the candidate we hire. Across Octopus, we're looking for genuinely decent people who are honest and empathetic. Our people are our strongest asset and the unique skills and perspectives people bring to the team are the driving force of our success. As an equal opportunity employer, we do not discriminate on the basis of any protected attribute. Our commitment is to provide equal opportunities, an inclusive work environment, and fairness for everyone.