Senior Major Projects, Project Manager

Swindon, United Kingdom Posted on 17/09/2026

Sinewave wasfounded in 2015 with a clear mission from the verystart - everything that we do will always be apower for good. Since then,we have gone from a living room start-up to a leading force within the energytransformation sector. Not bad, eh!

We are on a mission to help power the future more sustainably. Butdon't just take our word for it, we are the only B-Corp Certified ICP in theworld.

We're part of powering the UK's energy transition with innovative highand low voltage electrical solutions up to 400kV. From EV charging torenewables and commercial projects, we design, deliver, and maintain networkswith sustainability and efficiency at heart. Join us to drive change and makean impact!

This role:

We are looking for a Senior Major Projects Project Manager to join ourgrowing team, based in Swindon with UK travel. The salary band for this role is£75,000 to £85,000.

You will own a portfolio of 33-132kV projects, including switchgearand primary substations for renewable technologies, from award through tocompletion. As a key customer contact, you will work closely with ourCommercial, Design and Supply Chain teams to deliver projects safely, on time, to the required quality and within budget.

An idea of what you'll be doing:

• Managing a portfolio of complex, multi-million-pound major projects from award to completion, with clear ownership of programme, scope, resources, quality, budget and profitability.
• Taking responsibility for project P&L accounts, cost forecasting, financial control and routine operational and commercial reporting.
• Acting as the escalation point for customers, contract partners and internal teams on delivery, finance, contractual and communication matters.
• Working closely with customers and internal stakeholders, including Commercial, Design and Supply Chain, to board projects and maintain accurate cost information.
• Defining and embedding effective project controls and governance, including current programmes of work, milestone management, change control and dependency logs.
• Forecasting resources and managing cross-programme dependencies so that risks, decisions and delivery priorities remain visible.
• Overseeing project costs and identifying practical, innovative ways to improve delivery efficiency and maximise profitability.
• Providing project feedback, recommendations and lessons learned to the Commercial team.
• Making timely decisions and attending sites across the UK when needed to troubleshoot issues, monitor quality or conduct audits.
• Delivering projects sustainably, with due consideration for competence, capability and safety.
• Mentoring colleagues across the Major Projects Project Management team and supporting their continued development.

Everyone belongs here at Sinewave

At Sinewave, we are proud to be an equal opportunities employer,dedicated to creating a diverse and inclusive workplace where everyone feels valued and empowered to contribute. We know what it takes to change the worldand that's why we review all applications impartially, ensuring decisions are based solely on merit, skills, and potential. If you require any adjustments to support you through the application or interview process, please let usknow-we're here to help.

Requirements You'll have a proven track record of:

• Extensive project managementexperience in the electrical utility or construction industry, includingdelivery at EHV voltage levels from 33kV to 132kV for an ICP or DNO.
• Driving and delivering complex,multi-million-pound projects through the full project life cycle.
• Managing project P&L,forecasting profit and loss, controlling costs and reporting progress againsttargets and budgets.
• Building effective customerrelationships and adapting your communication style for customers, deliverypartners and internal teams.
• Working across several teamsand projects at once while maintaining strong organisation and coordination.
• Using Microsoft Project orequivalent project management software, together with Microsoft Office, Teamsand SharePoint across multiple devices.
• Using initiative and soundjudgement to find cost-effective solutions in challenging situations whileworking collaboratively with others.
• Working alongside Design teamsand contributing to tendering activity in the electrical industry.

You'll be a successful Senior Major Projects Project Manager atSinewave if you're

• Qualified in projectmanagement, for example PRINCE2, APM or PMI, or able to demonstrate equivalentexperience. Overseas equivalents are accepted and practical application will beconsidered alongside qualifications.
• Experienced in managingprojects and supporting the development of colleagues.
• An excellent communicator andlistener who can follow written and verbal instructions.
• Customer-focused, organised andconfident taking decisions when required.
• The holder of a full UK drivinglicence.
• Qualified in Emergency FirstAid at Work and SMSTS.
• Committed to working safely, following company and SHEQ requirements, reporting hazards and incidentsaccurately, and helping to reduce waste and improve environmental and socialperformance.
• Eligible to work in the UK.

So, let's talk about what's in it for you.

In return for everything you can bring, we can offer you an excitingplace to work with a welcoming and friendly workforce. We are afast-growing, dynamic business and even as our team grows in number,maintaining our company culture is important to us. We want to keep the feelingof being part of a small business alive, no matter how big we get.

Whether you're based in the HQ in Swindon, field-based, or workingfrom home we have a lot to offer:

The usual stuff

Along with a competitive salary and life assurance, we provideenhanced pension contributions matching 5% as standard.

25days + Bank Holidays

You can even buy or sell holiday allowance, giving you the flexibilityto enjoy more time with family and friends.

Private Medical

We hope you'll never need it, but just in case. We offer a fullycomprehensive medical scheme that can extend to your family as well.

Sinewave Academy

Our academy provides you with all of the tools and training needed topower your career.

Sinewave Worx

Our bespoke perks platform getting you discounts and cashback at loadsof high-street retailers.Our perks list is as impressive as the range ofour EV solutions! Want to know more? Charge ahead and check out he r e.