Senior NEC Site Supervisor in London

Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets. We are more than 36,000 people, in over 70 countries, dedicated to improving quality of life. Everyone has an important role to play. With the power of many curious minds, together we can solve the world's most complex challenges and deliver more impact together.

We're actively looking to recruit a Senior NEC Supervisor to join our Water Management team. Our team works on a variety of flood defence and adaptation projects and support our clients with the protection and enhancement of environmental matters across England. As a NEC Supervisor you will work on a range of Water, Civil Engineering and Utilities related projects and will be supported to deliver exceptional outcomes. The sheer size and complexity of projects we are involved with demand a joined‐up approach. It's why you'll have the opportunity to work with some of the most talented people around, blending diverse skills, experience and perspectives to deliver transformational outcomes. You'll need energy, agility and a forensic eye for detail.

Role accountabilities

• Contract Compliance: Act as the named NEC Supervisor under the contract, ensuring all works adhere to contract terms and technical specifications; Review and interpret contract documents, drawings, and specifications to verify contractor compliance; Advise the Project Manager on any contractual or technical issues affecting compliance; Monitor that the contractor follows approved methods and standards as specified in the contract.
• Inspection and Testing: Conduct regular and ad hoc inspections of construction activities, materials, and workmanship to verify quality and conformity; Witness and validate all key site tests, including materials and systems testing, as required by the contract; Ensure that the contractor's testing regime is in accordance with project requirements, and review test results and certificates for accuracy; Identify any deviations from specifications or standards and ensure defects are recorded, communicated, and remedied promptly.
• Defect Management: Identify, record, and notify the contractor of defects in accordance with NEC procedures; Track all defect notices, ensure appropriate remedial actions are taken, and confirm defects are rectified; Maintain an up‐to‐date defect register and communicate status to project stakeholders; Support resolution of disputes relating to defects by providing accurate records and evidence.
• Health, Safety & Environment: Monitor contractor compliance with health, safety, and environmental requirements, reporting unsafe practices or conditions; Participate in regular safety audits and HSE meetings; Promote and enforce a culture of safety and environmental responsibility on site; Ensure environmental protection measures are implemented as per project and regulatory requirements.
• Documentation & Reporting: Maintain comprehensive site records, including daily diaries, inspection logs, test certificates, and photographic evidence; Prepare clear, concise, and timely reports on quality, progress, and issues for the Project Manager and other stakeholders; Ensure that all documentation is managed and stored according to project protocols and NEC requirements.
• Stakeholder Liaison: Act as the interface between the contractor, client, designer, and other project stakeholders on matters of quality and compliance; Attend progress meetings and collaborate with project teams to resolve issues and promote best practices; Communicate effectively to ensure all parties are informed of relevant issues, progress, and risks.
• Continuous Improvement & Lessons Learned: Proactively identify opportunities for process and quality improvements during construction; Capture and share lessons learned with the project team and wider business to support continuous improvement; Support the adoption of digital tools and innovative approaches to site supervision and reporting.

Qualifications & Experience

• Degree or equivalent in Civil Engineering, Construction Management, or related field.
• Proven experience as a Supervisor, Clerk of Works, or similar role on major infrastructure/construction projects.
• Strong working knowledge of NEC contracts (ECC, PSC, etc.).
• Up‐to‐date CSCS or relevant safety certification.
• Excellent communication, reporting, and stakeholder management skills.
• Attention to detail and strong organizational skills.

Desirable Skills

• NEC Supervisor accreditation or training.
• Experience in digital site supervision tools and reporting platforms.
• Understanding of BIM and digital construction methodologies.
• Knowledge of environmental and sustainability standards.

Why Arcadis?

We can only achieve our goals when everyone is empowered to be their best. We believe everyone's contribution matters. It's why we are pioneering a skills‐based approach, where you can harness your unique experience and expertise to carve your career path and maximize the impact we can make together. You'll do meaningful work, and no matter what role, you'll be helping to deliver sustainable solutions for a more prosperous planet. Make your mark, on your career, your colleagues, your clients, your life and the world around you. Together, we can create a lasting legacy. Join Arcadis. Create a Legacy.

Our Commitment to Equality, Diversity, Inclusion & Belonging

We want you to be able to bring your best self to work every day which is why we take equality and inclusion seriously and hold ourselves to account for our actions. Our ambition is to be an employer of choice and provide a great place to work for all our people. We believe that by working together diverse people with different experiences develop the most innovative ideas. Equality, diversity and inclusion is at the heart of how we improve quality of life and we work closely with our people across six ED&I Workstreams: Age, Disability, Faith, Gender, LGBT+ and Race. A diverse and skilled workforce is essential to our success.