Senior Quantity Surveyor in Potters Bar

At JSM Group, we don’t just deliver power and communication solutions — we build the infrastructure that powers the future. Since 1998, we’ve grown into a high-margin, high-growth business backed by private equity, operating across gas, power, telecoms, and multi-utility frameworks.

SCOPE OF ROLE

As a Senior Quantity Surveyor, you’ll report to our Chief Quantity Surveyor and play a key part in the commercial success of a wide range of civil engineering and utility contracts. You’ll lead both pre- and post-contract work from pricing and tendering through to valuations and final accounts. You’ll manage risk, drive value, and work closely with both operational and leadership teams. It’s a varied role, with a strong commercial voice at the table.

How You’ll Succeed

• Build and maintain strong subcontractor relationships – negotiating rates, assessing applications, and agreeing variations
• Lead on tendering and bid submissions – including pricing, T&Cs, and commercial assessments
• Own monthly valuations, applications for payment, and variations control
• Produce accurate cost reports and CVRs across multiple high-value contracts
• Implement and maintain strong commercial systems and recordkeeping
• Proactively identify risks – and take action before they become issues
• Collaborate with delivery teams to align commercial and project goals
• Mentor junior team members and contribute to a positive team culture

What It Takes

• Solid experience in civil engineering or utilities
• Strong commercial acumen and end-to-end project experience
• Confident in NEC, JCT, and bespoke contracts
• Skilled in setting up and managing site-based commercial systems
• Hands‑on leadership style with a proactive mindset
• Comfortable negotiating and solving commercial challenges
• Strong communicator with good stakeholder management skills
• Proficient in Microsoft Office and commercial tools like Envision

What We Offer You

We truly value your work, time, and skills! In return, we will offer you a competitive salary and some additional benefits to support your professional growth, including:

• Participation in mentoring and coaching programmes
• 28 days of holiday (excluding bank holidays)
• 2 paid volunteering days a year
• Hybrid working pattern
• Continuous training and development, in both technical and business skills
• Clear progression path to MQS / Commercial Manager

Equal Opportunity Statement

JSM Group Services Ltd. is an equal opportunities employer and does not discriminate on the grounds of gender, sexual orientation, marital or civil partner status, pregnancy or maternity, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability or age. Our ethos is to respect and value people’s differences, and to help everyone achieve more at work as well as in their personal lives so that they feel proud of the part they play in our success. We believe that all decisions about people at work should be based on the individual’s abilities, skills, performance and behaviour and our business requirements. JSM Group operates a zero‑tolerance policy to any form of discrimination, abuse or harassment.