Job Description
Sinewave was founded in 2015 with a clear mission from the very start - everything that we do will always be a power for good. Since then, we have gone from a living room start-up to a leading force within the energy transformation sector. Not bad, eh!
We are on a mission to help power the future more sustainably. But don't just take our word for it, we are the only B-Corp Certified ICP in the world.
We’re part of powering the UK’s energy transition with innovative high and low voltage electrical solutions up to 400kV. From EV charging to renewables and commercial projects, we design, deliver, and maintain networks with sustainability and efficiency at heart. Join us to drive change and make an impact!
This role:
We are looking for a Major Projects Construction Manager to come and join our growing team.
The Major Projects Construction Manager is responsible for leading the delivery of high-voltage infrastructure projects (33kV–132kV), ensuring safe, efficient, and high-quality execution across all phases of construction. This role involves oversight of the project management team, subcontractors, and site operations, with a strong focus on programme management, commercial performance, and technical delivery.
Working closely with the wider Major Projects leadership team, this role will ensure projects are delivered on time, within budget, and to the highest safety and quality standards. The Construction Manager will also play a key role in aligning site activities with client expectations, stakeholder requirements, and regulatory compliance.
As a senior figure within the delivery function, the Major Projects Construction Manager will contribute to operational planning and continuous improvement initiatives, while acting as a visible leader on site and a key point of contact for project stakeholders including clients, DNOs, landowners, and delivery partners.
An idea of what you'll be doing:
· Lead, motivate, and develop a team of Project Managers and site managers, fostering a culture of accountability, collaboration, and high performance. Ensure effective resource planning and performance management across multiple concurrent projects.
· Oversee the successful delivery of multiple high-voltage projects (33kV–132kV), from pre-construction handover through to completion and financial handover.
· Ensure projects meet programme, cost, quality, and safety objectives.
· Support the strategic development of the Major Projects division by identifying opportunities for operational improvements, innovation, and scalable delivery models.
· Promote and enforce a strong health, safety, and environmental culture across all construction activities. Ensure compliance with CDM Regulations, BS7671, ENA standards, and company SHEQ procedures. Conduct regular site inspections and lead safety briefings.
· Uphold high standards of workmanship and ensure quality control procedures are followed throughout construction. Drive defect-free delivery and compliance with technical specifications and statutory regulations.
· Act as first step of escalation contact for delivery to clients, DNOs, National Grid, landowners, and other key stakeholders. Maintain strong relationships and ensure transparent communication across the lifecycle of each project.
· Manage construction-related costs, budgets, and forecasts. Identify and mitigate commercial risks and support the resolution of contractual matters including variations, early warnings, and compensation events in collaboration with the commercial team.
· Monitor project progress against agreed programmes, ensuring timely execution of key activities and milestones. Address potential delays through effective planning and proactive issue resolution.
· Identify, assess, and manage operational risks across all construction projects. Implement mitigation and contingency plans to maintain control over project delivery.
· Provide on-site leadership and technical support in areas such as high-voltage cable laying, substation build, civil and structural interfaces, and commissioning support. Resolve site-level technical queries efficiently.
· Deliver regular project updates to internal and external stakeholders, including senior leadership. Prepare performance dashboards and escalate critical issues with clear recommendations.
· Supporting the continuous improvement by refining construction processes, enhancing team capability, and embedding lessons learned across projects.
When you join you will go through our top-notch induction and onboarding process and have opportunities to develop further through our in-house training academy.
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 world and 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 us know—we’re here to help. #teamsinewave
RequirementsYou'll have a proven track record of:
Proven leadership in delivering large-scale high-voltage (33kV–132kV) infrastructure projects across complex, multi-stakeholder environments.
Strong commercial and contractual awareness, with experience managing budgets, forecasts, and NEC contract frameworks.
Deep understanding of construction methodologies related to HV cable works, substations, and associated civil engineering interfaces.
Exceptional project and programme management capabilities, with the ability to coordinate multiple concurrent sites.
In-depth knowledge of CDM Regulations, BS7671, ENA technical standards, and safe systems of work in HV environments.
Skilled in stakeholder engagement, able to build trust and maintain positive relationships, landowners, and subcontractors.
Calm under pressure, with strong problem-solving and decision-making skills in live site environments.
Collaborative leadership style, with a commitment to mentoring, developing talent, and promoting a safety-first culture.
You’ll be a successful Major Projects Construction Manager at Sinewave if you’re …
Extensive experience in the construction management of HV electrical infrastructure projects (33kV–132kV), including substations, cable routes, and civils.
Demonstrable track record of delivering technically and commercially successful major projects from pre-construction to handover.
Strong understanding of health, safety, quality, and environmental compliance across construction and commissioning phases.
Familiarity with DNO/National Grid technical requirements, land access protocols, and working in regulated utility environments.
Experience managing multidisciplinary teams, subcontractors, and site logistics across geographically dispersed projects.
Relevant qualifications in electrical engineering, construction management, or project delivery.
SMSTS, CSCS and 18th Edition desirable.
Full UK driving licence (3 points maximum) and willingness to travel as required.
Comply with all company policies, procedures, and business ethics codes, including the anti-bribery policy, while adhering to the Environmental and Quality Management System in alignment with ISO standards and the requirements of the NERS accreditation.
BenefitsSo, let’s talk about what’s in it for you.
In return for everything you can bring, we can offer you an exciting place to work with a welcoming and friendly workforce. We are a fast-growing, dynamic business and even as our team grows in number, maintaining our company culture is important to us. We want to keep the feeling of 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 working from home we have a lot to offer:
The usual stuff
Along with a competitive salary and life assurance, we provide enhanced pension contributions matching 5% as standard.
25days + Bank Holidays
You can even buy or sell holiday allowance, giving you the flexibility to enjoy more time with family and friends.
Private Medical
We hope you’ll never need it, but just in case. We offer a fully comprehensive medical scheme that can extend to your family as well.
Sinewave Academy
Our academy provides you with all of the tools and training needed to power your career.
Sinewave Worx
Our bespoke perks platform getting you discounts and cashback at loads of high-street retailers. Our perks list is as impressive as the range of our EV solutions! Want to know more? Charge ahead and check out here.
Join us
If you think this is the right role for you and you want to be a part of #TeamSinewave, we’d love to hear from you.
Requirements
When you join you will go through our top-notch induction and onboarding process and have opportunities to develop further through our in house training academy. You'll have a proven track record of: Assessing potentially hazardous and dangerous situations, taking appropriate action to ensure the safety of personnel, other site operatives and the public. Undertaking site specific risk assessments and creating RAMS, and competent in issuing and cancelling safety documents. Ensuring personnel and your wider team understand duties under safety documents. Carrying out network operations under instruction from the Network Control Engineer. Understanding the local network anomalies and ensuring correct phase rotation. You'll already have experience & qualifications in: Currently hold (or have held) authorisations up to 33kV including permit to work (accepting 11KV with extensive experience). CSCS (affiliated). The use of Productivity and Collaboration Software such as Microsoft Office, Microsoft Teams, SharePoint etc. across multiple platforms such as smart phones, tablets, laptops etc. Full UK driving license (Maximum of 3 points).
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