Project Manager

Tetra Tech Europe; Southampton; On-site; GBP 60,000 - 90,000; Full time

Job summary

Tetra Tech Europe leads complex defence infrastructure projects, delivering across feasibility, planning, construction and commissioning. You will coordinate multi-disciplinary teams, manage commercial and contractual requirements, and uphold safety, timeliness and quality across projects for the Defence Infrastructure Organisation (DIO).

You’ll drive programme performance, cost control, and stakeholder engagement while supporting a culture of collaboration and continuous improvement within our

Qualifications

• Proven project management experience in a complex technical environment.
• NEC3/NEC4 experience advantageous.
• Familiarity with MS Project, Excel, Viewpoint for Projects and CEMAR is beneficial.

Responsibilities

• Take ownership of defence infrastructure projects through full lifecycle (feasibility to commissioning).
• Coordinate multidisciplinary teams and manage commercial, contractual requirements.
• Maintain focus on safe, timely and high-quality delivery.
• Manage programme, cost, risk, quality, change and stakeholder relationships to meet contractual commitments.

Skills

Project management

Stakeholder management

Leadership

Budgeting

Risk management

Tools

MS Project

Excel

Viewpoint for Projects

CEMAR

Job description

Build your career delivering infrastructure that matters. Join Tetra Tech’s established Defence team and lead complex, high-profile projects for the Defence Infrastructure Organisation (DIO), working alongside experienced technical specialists across multidisciplinary programmes.

Purpose & Scope of the Role

As a Project Manager, you’ll take ownership of defence infrastructure projects through the full lifecycle, from feasibility and planning through construction to commissioning. Working across buildings and civil engineering programmes, you’ll coordinate multidisciplinary teams, manage commercial and contractual requirements, and maintain a clear focus on safe, timely and high-quality delivery.

You’ll join an experienced team with opportunities to broaden your technical knowledge, strengthen your defence-sector expertise and take on increasingly complex project challenges.

Your Impact in this position

You’ll create the structure, momentum and collaboration needed to keep projects moving. By managing programme, cost, risk, quality, change and stakeholder relationships, you’ll help ensure contractual commitments are met while providing clients with confidence in project performance.

You’ll also support a high-performing team culture, building strong relationships and helping colleagues achieve excellent outcomes.

5 Core Capabilities

• Project Delivery & Controls – Lead complex projects to programme and budget, managing resources, milestones, change, risk and quality throughout the project lifecycle.
• Technical & Defence Experience – Apply your experience of complex infrastructure projects, ideally within defence, buildings or civils, where regulatory compliance and effective risk management are critical.
• Leadership & Collaboration – Bring multidisciplinary teams together, establish effective ways of working and support colleagues through coaching, motivation and clear direction.
• Commercial & Financial Management – Confidently manage budgets, cost control, forecasting and contractual matters, using sound judgement and effective negotiation to achieve positive outcomes.
• Stakeholder & Project Communication – Build trusted client relationships, communicate complex information clearly and develop robust project documentation, including programmes, risk registers, execution plans, stakeholder plans and quality plans.

Training, Qualifications & Experience

You’ll bring proven project management experience within a complex technical environment. NEC3/NEC4 experience, a recognised project management qualification or relevant professional accreditation is advantageous. Familiarity with MS Project, Excel, Viewpoint for Projects and CEMAR is beneficial. You’ll need SC clearance, or be suitable to obtain it, and a valid driving licence is desirable.

Working Environment

Projects are located across East Anglia, Northamptonshire, Gloucestershire and Yorkshire, with travel to project sites required. The specific office attendance expectations and availability of hybrid, remote or flexible working arrangements are not defined in the current role information and should be confirmed as part of the recruitment process.

About Tetra Tech

Tetra Tech is a leading provider of consulting and engineering services working across the full project lifecycle worldwide. We have a wide range of expertise across our teams, providing a global support network with a personalised approach to client relationships to better understand where we can add value. We provide a collaborative environment that supports individual performance, innovation, and creativity.

We support public and private sector clients on local, national, and international projects to deliver sustainable and resilient solutions. Our operations in the UK, Ireland, and the Netherlands include more than 6,000 employees who are Leading with Science® to solve our clients’ most complex problems.

In alignment with the Equality Act 2010, we will make reasonable adjustments to support candidates and employees requiring additional arrangements. This could include adaptations to work schedules, training approaches, or the physical workspace. Please inform us if you need any accommodations during the recruitment process or in your day-to-day role.