Senior Quantity Surveyor

Vextrix; Greater London; On-site; GBP 70,000 - 90,000; Full time

Benefits offered by this job

28 days leave + bank holidays

Private medical insurance

Annual bonus

Flexible and home working

Enhanced parental leave

Volunteering days

Salary sacrifice

Training and project opportunities

Birthday lunches

Job summary

Vextrix is seeking a Senior Quantity Surveyor to lead commercial delivery on major infrastructure projects in the London area, with around 50% on‑site work around St Albans in the initial years. You will oversee pre- and post‑contract commercial management within a Design & Build context, supporting the NEC Project Management Team and reporting to the Project Director.

You will bring substantial QS and cost management experience in rail, highways or civils, possess strong NEC knowledge, and

Qualifications

• Substantial Quantity Surveying and cost management experience within rail, highways or major civils.
• Strong NEC3/NEC4 contract knowledge is essential.
• Excellent reporting, negotiation and communication skills required.
• RICS or other relevant accreditation desirable.

Responsibilities

• Manage estimates, budgets, feasibility studies and project expenditure.
• Administer NEC3 and NEC4 contracts, including early warnings, compensation events and change control.
• Prepare cost variance reports, forecasts, cash-flow updates and monthly commercial reports.
• Assess valuations, payment applications, payment certificates and final accounts.
• Lead contractor meetings and provide commercial advice.
• Mentor junior Quantity Surveyors and support their development.

Skills

Quantity Surveying

NEC contract knowledge

Cost management

Reporting

Negotiation

Communication skills

Leadership/mentoring

Education

Quantity Surveying degree

Job description

Senior Quantity Surveyor -- Competitive Salary- London & St Albans

Do you have strong NEC3 and NEC4 contract knowledge gained across rail, highways or major civil engineering projects? Are you ready to take ownership of complex commercial matters while helping clients deliver major infrastructure programmes?

We are looking for an experienced Senior Quantity Surveyor to join our growing consultancy, based at our London office and working around 50% of the time on site in the St Albans area during the first two years.

As a Senior Quantity Surveyor, you will provide hands‑on pre-contract and post-contract commercial management within a Design & Build environment. You will support a major project, work closely with the NEC Project Management Team and receive support from the Project Director when required.

This is a senior, client-facing opportunity where your judgement and experience will be valued.

Key Responsibilities

• Manage estimates, budgets, feasibility studies and project expenditure.
• Administer NEC3 and NEC4 contracts, including early warnings, compensation events and change control.
• Prepare cost variance reports, forecasts, cash-flow updates and monthly commercial reports.
• Assess valuations, payment applications, payment certificates and final accounts.
• Manage contractor, subcontractor and supplier accounts.
• Lead contractor meetings and provide clear commercial advice.
• Mentor junior Quantity Surveyors and support their development.
• Identify the cost and programme impact of access constraints, possessions, isolations, permits and stakeholder approvals.

The Company

Vextrix was founded to create a socially conscious business where all our clients and staff feel valued. In our growing business, we create an environment for our team where each individual can develop and progress, benefiting from the experience of our senior team and exciting opportunities with our clients. Collaboratively, we all live our values and deliver on our unique guarantees, which is why our clients trust us as their consultant of choice.

The Benefits

• 28 days' annual leave plus bank holidays
• Private medical insurance and a Medicash Cash Plan
• Annual bonus and annual pay review
• Flexible and home working options
• Enhanced maternity, paternity and compassionate leave
• Two paid volunteering days each year
• Salary sacrifice and employee discount schemes
• Ongoing training and wider project opportunities
• Birthday lunches and shared team celebrations

The Person

You will need substantial Quantity Surveying and cost management experience within rail, highways or major civils, gained with a contractor or consultancy. Client-side experience is useful but not essential.

The successful Senior Quantity Surveyor will also have:

• A Quantity Surveying degree or equivalent
• Strong NEC contract knowledge
• Experience in an onsite Main Works Contractor environment
• Excellent reporting, negotiation and communication skills
• Sound commercial judgement and attention to detail
• The confidence to challenge constructively
• RICS or another relevant professional accreditation is desirable