Project Manager – Geotechnical Sub-Alliance (GSA)

About the role

We’re looking for an experienced Project Manager to play a key role in delivering one of the UK’s most significant infrastructure projects. As part of the Geotechnical Sub-Alliance (GSA) at Sizewell C, you’ll lead complex ground engineering works that are critical to preparing the site for a new nuclear power station.

This is a senior leadership role with full accountability for project performance across safety, quality, programme, and commercial outcomes. You’ll be working within a collaborative NEC4 Alliance environment, leading multidisciplinary teams and specialist supply chain partners.

What you'll be doing

Take full accountability for project delivery across safety, quality, programme, and commercial performance

Lead and integrate operations, design, plant, procurement, and commercial functions for geotechnical works (e.g. diaphragm walling, soil mixing, piling)
Set and drive high standards of performance, governance, and delivery across the project

Champion a Zero Harm culture, including leading investigations, setting safety KPIs, and ensuring close-out of actions

Establish and oversee quality strategy, audits, and compliance with ITPs and client requirements

Own the master programme, including critical path management, sequencing, and mitigation of risks and delays

Define and implement procurement strategy, including management of key suppliers and long-lead items

Drive productivity improvements and set measurable KPIs aligned to programme and commercial outcomes

Lead commercial strategy, including forecasting, CVRs, earned value, and contract negotiations

Provide contractual leadership under NEC4 Alliance, including managing change, early warnings, and compensation events

Chair risk-reduction and stakeholder meetings, maintaining strong relationships with the client and alliance partners

Lead, develop, and manage project teams, including performance, succession planning, and disciplinary processes

Ensure high standards of communication, including site briefings and client reporting

Who we're looking for Proven experience as a Project Manager on major civil engineering or geotechnical projects

Strong technical understanding of ground engineering techniques such as diaphragm walling, piling, and soil improvement

Solid working knowledge of NEC contracts, ideally NEC4 Alliance or Option C/E environments

Demonstrated ability to manage large, multidisciplinary teams and complex supply chains

Strong commercial awareness, including experience with forecasting, cost control, and contract negotiations

Ability to manage and drive programme performance, including critical path and risk management

Confident stakeholder manager, with experience dealing with clients, partners, and senior leadershipA proactive, solutions-focused approach with the ability to make informed decisions under pressure

Strong leadership skills, with a track record of developing high-performing teams

Commitment to high standards of safety, quality, and operational excellence

Why work for usDay in, day out, our teams deliver some of the UK’s most ambitious, exciting and meaningful projects; developing, building and maintaining the vital infrastructure that supports national economies and strengthens communities.

Why join us?

As if contributing to and supporting work that makes life better for millions wasn’t rewarding enough, we offer a full range of benefits too. You’ll have the freedom to shape the package that’s right for you and your life. Here are some of our key benefits:

- Smart working, giving you more flexibility such as staggered start and finish times, with up to 40% remote working, where roles allow.
- 25 days paid annual leave (pro rata)
- Family friendly policies which include 28 weeks full pay for maternity/adoption leave and four weeks full pay for paternity/partners leave
- Pension, share incentive plan, volunteering leave, recognition schemes and much more…About us Balfour Beatty Ground Engineering is one of the UK’s leading specialist geo-technical contractors, providing innovative piling and ground improvement solutions across all sectors. Our comprehensive ground engineering capabilities, equipment and experience…