About this role
<p>The Sizewell C Jobs Service supports local people into exciting, long-term careers across our Project.#SZCJobs</p><p> </p> <p> </p> <p style="text-align:center"><strong>Commercial Manager</strong><br><strong>Sizewell C</strong><br> </p> <p>Contract Type: Permanent - Office-based with hybrid flexibility (typically 3 days p/w in the office) <br>Working Pattern: Full time<br>Closing Date: Thursday 30th July 2026<br> </p> <p>Location: London<br>Salary: Circa £66,000 depending on experience<br>Bonus: 5% annual incentive<br>Pension: Up to 7.5% employee contribution / 15% employer contribution<br>Holiday: 28 days plus bank holidays<br>Benefits: Flexible benefits<br> </p> <p><strong>Impact:</strong></p> <p><br>We're looking for an experienced commercial professional with a strong track record in major infrastructure, engineering, or construction projects. Ideally, you'll have experience within heavy civils and knowledge of NEC3/NEC4 contracts. You'll be confident managing commercial activities across allocated contracts or work packages, supporting project teams, assessing change, managing risk, and helping to deliver successful commercial outcomes.<br> </p> <p><strong>Your role will be to:</strong></p> <p><br>Manage the commercial administration of allocated contracts and work packages within major infrastructure projects.<br>Administer NEC3 and NEC4 contracts, ensuring compliance with contractual obligations and project procedures.<br>Prepare and manage commercial documentation, including early warning notices, compensation events, payment assessments, and programme submissions.<br>Review and evaluate quotations, subcontractor submissions, and change proposals.<br>Support the preparation of position papers, commercial reports, forecasts, and cost analysis.<br>Work collaboratively with project, engineering, procurement, and supply chain teams to ensure effective commercial delivery.<br>Identify, manage, and mitigate commercial risks and opportunities.<br>Build strong relationships with internal and external stakeholders, providing clear commercial advice and support.<br>Contribute to cost control, change management, and commercial governance processes.<br>Support senior commercial leadership in achieving project and business objectives.</p> <p><br><strong>What You'll Bring</strong></p> <p><br>Proven experience working within commercial management on major construction, infrastructure, engineering, or heavy civils projects.<br>Good working knowledge of NEC3 and/or NEC4 contracts.<br>Strong commercial awareness, contract management, and negotiation skills.<br>Experience preparing and administering compensation events, early warnings, and payment applications.<br>Ability to analyse commercial data and provide clear recommendations.<br>Strong stakeholder management and communication skills.<br>Knowledge of UK contract law and procurement practices.<br>Degree-qualified or equivalent industry experience.<br>Professional membership (RICS, ICES, CIOB, CIPS) desirable or working towards chartership<br> </p> <p><strong>Why Join Us </strong></p> <p><br>A major infrastructure project with national impact <br>Hybrid working with flexibility built in <br>Competitive salary, bonus and benefits <br>Clear progression and development opportunities <br>Supportive, collaborative team environment <br> </p> <p><strong>Behavioural Competences</strong></p> <p> </p> <p>Humility</p> <p>Recognise the value brought from different cultures and experiences.<br>Be open to other’s points of view and ideas, be willing to debate and to compromise.<br> </p> <p>Positivity</p> <p>Positively challenge poor quality and performance.<br>Identify solutions at the lowest possible level.<br>Encourage others to bring new ideas forward.<br> </p> <p>Respect</p> <p>Value the rules and environment in which we operate.<br>Give and receive feedback with respect.<br>Embrace and engage with new people and ideas.<br> </p> <p>Solidarity</p> <p>One team, working closely together and helping each other.<br>Empowered teams always looking forward.<br>Shared responsibility for delivery the project outcomes.<br> </p> <p>Clarity</p> <p>Communicate clearly and consistently.<br>Promote collaboration and team alignment.<br>Clearer and faster decision making.<br>Drive simplification at all levels.<br> </p> <p><br>If this sounds like the next step in your career, we’d love to hear from you. Apply today. </p> <p> </p> <p> </p><p> </p> <p>For this role you must have evidence of right to work in the UK. As a project, we do not discriminate on the grounds of age, gender, race, colour, religion, disability or sexual orientation, and we welcome applications from all sections of the community.</p>