Senior Estimator - Sizewell C


Location
London
Hours
Full Time
Salary
Competitive, commensurate with experience
About the Role
The purpose of this role is to support the Lead Estimator and Head of Estimating on the Sizewell C project to ensure a consistent estimating approach aligned with client requirements. You will work closely with the Lead Estimator or independently to produce various estimating documentation that meets internal and external assurance standards. This role involves developing estimates from first principles related to the Sizewell C work packages, mentoring junior team members, and managing stakeholder relationships including planning and procurement. You will present, negotiate, and justify pricing transparently to senior leaders and external partners.
Key responsibilities include undertaking estimates in accordance with Sizewell C policies and procedures, reviewing drawings and specifications to prepare accurate cost sheets for materials, labour, and equipment, and evaluating design options and value engineering solutions. You will mentor junior estimators, record assumptions, identify risks and opportunities, and liaise with project teams and supply chain to understand methodologies. The role requires developing labour, plant, material, and subcontract pricing using Candy Estimating Software and preparing bills of quantities with Cost X software. You will also track changes to estimates and budgets as inputs mature.
Why Work for Us
Our teams deliver some of the UK’s most ambitious and meaningful infrastructure projects that support national economies and strengthen communities. We offer a comprehensive benefits package including flexible smart working with up to 40% remote working where applicable, 25 days paid annual leave (pro rata), family friendly policies with enhanced maternity, adoption, and paternity pay, pension schemes, share incentive plans, volunteering leave, and recognition schemes. Join us to contribute to projects that make a real difference while enjoying a supportive and flexible working environment.
Experience
- Proven background in infrastructure main contracting, ideally within civil engineering.
- Commercial or operational experience is also considered valuable.
- Proficient in Excel and similar software.
- Experience with Candy Estimating Software is desirable.
- Experience with RIB Cost X Quantification & Estimating Software is desirable.
- Familiarity with AACE principles of Estimating Class and associated maturity is advantageous.
- Mobile and flexible approach to work.
About You
Excellent client-facing and communication skills are essential. You will be a senior team member capable of mentoring and supporting junior colleagues, with the ability to present and negotiate pricing clearly and confidently. A collaborative mindset and stakeholder management skills are important to succeed in this role.
Qualifications
Chartered status with a relevant industry body such as ICE, CICES, RICS, CIOB or equivalent is desirable but not essential.





















