Fawley Site Manager in Southampton

Southampton Full-Time On-site

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Join Trant Engineering and help shape the delivery of critical projects in a high-risk environment.

Trant Engineering is a leading EPC contractor with a strong reputation for delivering innovative engineering solutions across the UK and internationally. We’re now looking to expand our team with an Assistant Project Manager to play a key role in our delivery team at Fawley Refinery. This position reinforces an established, successful team with a breadth of expertise.

The Role

As Assistant Project Manager you'll be supporting in the planning, execution, and delivery of engineering projects within a complex, high risk environment. You will be assisting with scheduling, budgeting, reporting, risk management, and coordination of site activities. The Assistant Project Manager acts as a critical interface between clients, subcontractors, suppliers, and internal teams to ensure projects are delivered safely, on time, and within budget. The successful candidate will drive productivity, standards and quality across multiple projects.

What You’ll Be Doing

1) Technical Responsibilities - Project Support

Assist in developing project plans, schedules, and resource allocation.
Support day-to-day coordination of site and engineering activities.
Monitor project progress and highlight potential delays or risks.
Assist in ensuring projects meet technical, safety, and quality requirements.
Assist in tracking project budgets, costs, and forecasts.
Drive productivity, maintain standards and champion continuous improvement.
Help identify and report commercial or financial risks.
Maintain accurate project documentation and records.

2) Compliance & Risk

Support the identification, assessment, and mitigation of project risks.
Assist in ensuring compliance with statutory, regulatory, and client standards.
Support quality assurance, inspections, and commissioning activities.
Assist in monitoring Health, Safety, and Environmental compliance on site.

3) Stakeholder Communication

High degree of client and subcontractor engagement.
Maintain communication with internal teams regarding project progress.
Help prepare project reports, presentations, and progress updates.

4) Team Coordination

Assist in coordinating site engineers, designers, and subcontractors.
Support collaboration, accountability, and effective communication across the project team.
Aid in the development and training of junior staff as required.

5) Key Interfaces: Internal Interfaces

Project Manager / Contracts Manager.
Site Engineers / Site Managers.
Operations & Engineering Teams.
Commercial / Contracts Teams.
Quality & HSE Teams External Interfaces.
Clients / End Users.
Subcontractors / Suppliers.
Consultants / Technical Advisors.
Regulators / Authorities.

6) Core Values

Uphold and promote the Company’s Core Values – Care, Trust, Respect and Sustainability.

You may be required to undertake additional duties, consistent with the responsibilities and level of this role, beyond those specified above.

What We’re Looking For

Essential

Degree, HND, HNC, or equivalent in Construction, Project Management and Civil Engineering,
Experience of working in High-Risk environments.
Knowledge of UK engineering, construction, and regulatory standards.
Experience supporting engineering or construction projects, ideally in Oil & Gas, Nuclear, Energy, Water or Utilities.
Experience assisting with project scheduling, reporting, and documentation.
Experience in coordinating teams or liaising with site staff.
Awareness of Health, Safety, and Environmental regulations in high-risk environments.

Desirable

Experience of working in a Refinery or safety critical environments.
Familiarity with project management software (e.g., MS Project, Primavera, or similar).
Experience supporting multi-site projects or complex project logistics.
Professional body membership (ICE, CIOB RICS etc)

Why Join Trant?

At Trant Engineering, we deliver complex, high-value engineering and construction projects across the UK. From process and water treatment to energy infrastructure upgrades, we play a key role in delivering and protecting critical national infrastructure – shaping the systems that communities and industries rely on every day.

Our teams design and deliver full EPC solutions, combining technical excellence with practical, hands-on delivery. We offer end-to-end capabilities – from concept and design through to manufacturing, construction and commissioning utilising a continually evolving in-house expertise. This means you’ll work on projects that are varied, challenging and genuinely impactful.

Our multi-disciplinary teams bring together specialists in civil, mechanical, electrical, process, instrumentation, and control & automation engineering, alongside our in-house manufacturing of control panels, MCCs, PLCs and SCADA systems. With over 1,000 people and a strong, growing pipeline of work, it’s an exciting time to join Trant. We are committed to helping our people succeed through our Career Development Association, providing structured support, mentoring and clear pathways to help you reach your full potential.

Whether you’re starting out or looking to take your next career step, Trant offers the chance to develop, progress and make a real difference.

Our company benefits package includes.

Competitive salary.
Company car or car allowance (some levels.)
Mentored support within our ‘Career Development Association’, to work towards chartership.
24 days holiday (increasing with service) + 8 bank holidays.
Options to buy additional holiday via salary sacrifice.
Company Pension Scheme.
Flexible working based on a ‘core hours’ system.
1 x Professional Membership paid annually.
Hybrid working.
Employee assistance program.
Free onsite parking.
Bike to Work scheme.
Discretionary annual bonus.

Ready to take the next step in your career? Apply now and be part of something bigger.