Marine Project Manager

Sizewell C Company; London Borough of Lambeth; On-site; GBP 90,000 - 130,000; Full time

Job summary

The Civil Works Alliance (CWA) is seeking a Marine Project Manager to support Sizewell C. You will lead offshore work packages, manage subcontractors and coordinate with the Offshore Construction Manager for safe, efficient delivery.

Applicants should have NEC contract knowledge, offshore construction experience, strong leadership, and a proven track record delivering complex marine projects.

Qualifications

• Degree-level qualification in Construction, Civil Engineering, Project Management, or related field.
• Project management certification (APM PFQ/PMQ/PPQ/PRINCE2) or equivalent.
• CSCS card and SMSTS (HSE site management training).
• Sea Survival certification and offshore/sea-going medical, or willingness to obtain on onboarding.

Responsibilities

• Accountable for successful project delivery via Subcontractor management for offshore elements of various work packages.
• Determines the most appropriate means of achieving customer / project requirements: time, cost, quality, scope, risk, benefits.
• Provides management, leadership and control of a multi-disciplinary team comprising Agents, Sub-Agents, Section Engineers and Site Engineers.
• Works closely with the Preconstruction Lead, Offshore Construction Manager and Onshore Project Management team to ensure safe and efficient delivery of the offshore works at Sizewell C.

Skills

NEC contract knowledge

Offshore/marine construction mgmt

Leadership and team management

Cost forecasting

Stakeholder engagement

Communication skills

Decision making under pressure

Driving licence

Education

Degree-level qualification in Construction/Civil Engineering/PM

PRINCE2/APM PFQ/PMQ/PPQ

CSCS card and SMSTS

Sea Survival certification / offshore medica

Job description

Marine Project Manager Opportunity with the Civil Works Alliance (CWA), Supporting Sizewell C

As part of the CWA (Civil Works Alliance), you will support the building of Sizewell C. Sizewell C will be a 3.2-gigawatt power station generating low-carbon electricity for around 6 million homes and will play a key role in our energy future, supplying reliable, clean electricity for at least 60 years.This role will be within theMarine and Tunnels Section.

What will you do?

• Accountable for successful project delivery via Subcontractor management for the offshore elements of various work packages;
• Determines the most appropriate means of achieving customer / project requirements, objectives and constraints: time, cost, quality, scope, risk, benefits;
• Provides management, leadership and control of a multi-disciplinary team comprising Agents, Sub-Agents, Section Engineers and Site Engineers;
• Works closely with the Preconstruction Lead, Offshore Construction Manager and Onshore Project Management team to ensure safe and efficient delivery of the offshore works at Sizewell C.

What are we looking for?

• Strong working knowledge of NEC and other standard forms of contract relevant to the marine / offshore sector;
• Proven ability to manage and control offshore / marine construction activities, including identification of technical requirements and application of industry standard techniques;
• Capable of reviewing, approving and implementing construction programmes and resource-loaded schedules;
• Demonstrable experience in developing, reviewing and approving Safe Systems of Work (SSoW) for marine operations;
• Sound understanding of Construction (Design and Management) Regulations 2015 (CDM) and their application to offshore work sites;
• Proficient in the use and interpretation of performance metrics, productivity tracking and evaluation tools;
• Strong and clear written and verbal communication skills. Able to present technical and commercial information effectively;
• Leadership and team management capability, with experience leading multi-disciplinary teams and subcontractors in dynamic, high-risk environments;
• Demonstrable ability to make sound, independent judgements and lead decision making under pressure;
• Proven track record of successful project delivery, ideally in a complex marine or offshore construction environment;
• Commercially aware and experienced in project financial control, cost forecasting and subcontractor management;
• Skilled in issue resolution and stakeholder engagement with a collaborative and solution-focused approach;
• Minimum 3-5 years of direct experience managing offshore or marine construction projects with responsibility for delivery, safety and quality.
• Familiarity with Development Consent Order (DCO) and Marine Management Organisation (MMO) licensing processes and post-consent compliance;
• Understanding of pre-construction planning processes, including site investigation, consenting and constructability review;
• Professional accreditation (e.g. CEng, MICE, MAPM) or actively working towards such accreditation;
• 5-10 years’ experience in managing complex offshore / marine construction projects, ideally in a client-facing or Tier 1 contractor environment;
• Valid UK driving licence.

Qualifications & Certifications

The role holder is expected to have one or more of the following:

• Degree-level qualification (e.g. BSc/MSc/Meng/Beng) in Construction, Civil Engineering, Project Management, or a related discipline or demonstrable equivalent experience;
• Project management certification such as APM PFQ / PMQ / PPQ / PRINCE2 or equivalent;
• CSCS card and SMSTS (or equivalent HSE site management training);
• Sea Survival certification and offshore / sea going medica, or willingness to obtain as part of onboarding (e.g. STCW, BOSIET, GWO or equivalent).

What we will offer you?

The CWA is a single delivery organisation made of up of the client (Sizewell C) and three parent companies - Balfour Beatty, Bouygues and Laing O'Rourke - which offer industry leading packages including market leading salaries, generous annual leave entitlements, pension scheme and other flexible benefits.

About Us

The CWA celebrates the creativity and innovation that comes from a diverse workforce, and we welcome applications from people of all backgrounds — especially those from under‑represented communities. Our project is built on five core values: Humility, Positivity, Respect, Solidarity, and Clarity.
By joining us, you’ll be encouraged to bring your whole self to work, speak up, and share your ideas. We encourage applications from all suitably qualified candidates, regardless of gender, race, disability, age, sexual orientation, gender reassignment, religion or belief, marital status, or pregnancy and maternity.
We are committed to protecting your privacy. If you decide to apply, please avoid including sensitive personal data in your CV.