Senior Quantity Surveyor: Design Change Leader in Infra

Smart 4 EPC; Twickenham; On-site; GBP 65,000 - 90,000; Full time

Job summary

Smart 4 EPC is seeking a Senior Quantity Surveyor to lead commercial management of design changes across major Heathrow programmes. You will assess, price, negotiate, and secure agreement on changes arising from design development and programme impacts.

The ideal candidate possesses strong NEC contract experience, stakeholder management skills, and a track record in infrastructure projects within consultancy or client-side environments.

Qualifications

• Senior Quantity Surveyor or Change Management experience within major infrastructure programmes.
• Experience managing commercial impacts from design development and engineering change.
• Experience in consultancy, client-side, or complex programme environments.
• Detailed knowledge of NEC contracts, particularly compensation events and change mechanisms.
• Ability to interpret engineering designs, scope documentation, technical reports, and design deliverables.
• Experience of working in multidisciplinary design environments.
• Strong commercial negotiation and stakeholder management skills.
• Experience supporting major rail, transport, utilities, aviation, highways, or infrastructure projects.

Responsibilities

• Lead the commercial assessment of design development and design change across HS2 programmes.
• Work with engineering and design teams to identify emerging change opportunities and risks early.
• Evaluate cost, schedule, and risk implications from design modifications.
• Establish and maintain detailed change registers and governance processes.
• Ensure changes are supported by robust technical and commercial justification.
• Prepare and manage change submissions, compensation events, instructions, and variation proposals.
• Provide commercial and contractual advice regarding entitlement arising from design changes.
• Support negotiations with clients, delivery partners, contractors, and stakeholders.
• Manage change from identification through to agreement and final account settlement.
• Maintain compliance with NEC contract requirements and HS2 processes.
• Protect and maximise commercial recovery opportunities.
• Act as a trusted commercial partner to design managers and project managers.
• Participate in design reviews, value engineering workshops, and assurance activities.
• Challenge scope growth and ensure commercial consequences are understood by teams.
• Translate engineering issues into commercially robust narratives.
• Support decision making through cost impact assessments.
• Build relationships across HS2, delivery partners and stakeholders.
• Present commercial positions and change strategies to senior leadership.
• Facilitate collaborative resolution of complex commercial and technical matters.

Skills

Design commercial management

Change control & governance

NEC contract administration

Cost planning & forecasting

Engineering & design understanding

Commercial negotiation

Risk & opportunity management

Stakeholder engagement

Strategic thinking

Leadership & mentoring

Education

MRICS or MCICES or equivalent

Job description

Smart 4 EPC is seeking a Senior Quantity Surveyor to lead commercial management of design changes across major Heathrow programmes. You will assess, price, negotiate, and secure agreement on changes arising from design development and programme impacts.

The ideal candidate possesses strong NEC contract experience, stakeholder management skills, and a track record in infrastructure projects within consultancy or client-side environments.