Senior Quantity Surveyor

Ganymede Solutions Ltd; Greater London; Hybrid; GBP 60,000 - 70,000; Full time

Job summary

A leading contractor in water infrastructure is seeking a Senior Quantity Surveyor for a pivotal role on a high-value water treatment project in Buckinghamshire. You will oversee subcontractor accounts, manage costs, and ensure contract compliance on an impactful scheme, part of the AMP8 investment cycle. This opportunity offers competitive salary, benefits, and a pathway for career progression.

Benefits

28 days’ holiday + bank holidays

Private healthcare, pension, and structured career development

Flexible working

Qualifications

• Proven experience with NEC3/4 Option C contracts.
• Background in Water or Civil Engineering infrastructure.
• Experience managing high-value subcontract packages.

Responsibilities

• Manage subcontractor packages from procurement through to final account.
• Own the change management process including compensation event pricing.
• Produce CVRs and support forecasting across the commercial team.

Skills

Commercial awareness

Detail-oriented

Stakeholder influence

Education

Ideally degree-qualified with MRICS, MCIOB or equivalent

Tools

Oracle

CEMAR

Job description

Senior Quantity Surveyor – Water Infrastructure (NEC3/4 Option C)

Location: Buckinghamshire (Hybrid – 1–4 days per week on site)
Salary: £60,000–£70,000 + Car Allowance + Benefits
Type: Permanent
Sector: Tier 1 Civil Engineering Contractor

The Project

Join a major £30m+ upgrade to a key Waste Water Treatment Works in Buckinghamshire, part of the AMP8 investment cycle. This is a critical infrastructure project delivering clean water to thousands of homes — and it’s just one piece of a secured long-term pipeline of work.

The Role

As Senior Quantity Surveyor, you’ll play a hands-on commercial role from day one — reporting into the Managing QS and Commercial Manager. You’ll be trusted to manage subcontractor accounts, identify cost-saving opportunities, and lead the full commercial lifecycle of this flagship project.

You’ll be working under an NEC3/4 Option C contract on a high-profile scheme that blends complexity with long-term stability. Ideal for someone who thrives on detail, sees risk as something to be managed (not avoided), and enjoys ‘finding the money’ others might miss.

️ What You’ll Be Doing

• Manage subcontractor packages from procurement through to final account
• Own the change management process — including compensation event pricing
• Issue notices and applications in line with the NEC contract
• Produce CVRs and support forecasting across the commercial team
• Work closely with engineering and delivery teams to ensure accurate site records
• Identify risks and opportunities that impact project margins
• Build strong client and subcontractor relationships for long-term benefit
• Support and mentor junior commercial staff when needed

What You’ll Bring

• Proven experience with NEC3/4 Option C contracts
• Background in Water or broader Civil Engineering infrastructure
• Strong commercial awareness with a forensic eye for contract detail
• Experience managing high-value subcontract packages
• Capable communicator and team player – comfortable influencing stakeholders
• Working knowledge of Oracle, CEMAR, or similar systems (preferred)
• Ideally degree-qualified with MRICS, MCIOB or equivalent (or working towards)

Why This Role?

This isn’t just a job — it’s a long-term opportunity to join one of the UK’s leading contractors in water infrastructure, on a project with genuine scale and social impact. You’ll be involved from the early stages, building a deep understanding of a major asset and shaping commercial strategy alongside experienced leaders.

You’ll also benefit from:

• A healthy pipeline of AMP8 work in the region
• Progression pathways into Managing QS / Commercial Manager roles
• Flexible working to suit your lifestyle
• Support for professional development and chartership

What’s On Offer

• £60,000–£70,000 base salary
• Car allowance + full benefits package
• Hybrid working – 1–2 days per week on site to start, rising to ~3
• 28 days’ holiday + bank holidays
• Private healthcare, pension, and structured career development

️ Want to learn more before applying? Drop me a message — I’ll give you the honest insight into what the role involves, how the team works, and why this is a career-defining opportunity for the right QS.

Ganymede is committed to creating a diverse workforce and is an equal opportunities employer. We welcome applications from all suitably qualified persons regardless of age, disability, gender, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex, and sexual orientation