Managing Estimator

London

Location
London
Job type
Permanent
Posted

Job description

Help Shape the UK’s Energy Future

Managing Estimator Opportunity with the Civil Works Alliance (CWA), Supporting Sizewell C

As part of the CWA (Civil Works Alliance), you will support the building of Sizewell C. Sizewell C will be a 3.2-gigawatt power station generating low-carbon electricity for around 6 million homes and will play a key role in our energy future, supplying reliable, clean electricity for at least 60 years. This role will be within the Marine and Tunnels Section.

What will you do?

Job Purpose / Overview

The purpose of the role is:

· Assisting in the Management with the Lead Estimator of a multi skill level estimating team (Senior Estimator, Estimator, Assistant Estimator) to develop both cost planning and pricing for the section of the project.

· Feeding into the Lead Estimator, Deputy Head of Estimating and Head of Estimating on the project to ensure consistency in estimating approach set out by the client.

· Capable of producing various estimating documentation that can be assured both internally and externally.

· Stakeholder management to produce the Estimate e.g., planning, procurement etc.

· Presenting, negotiating and justifying prices produced in an open and honest manner to both senior leaders within the business and/or external customers/partners.

Principal Accountabilities, Activities and Decisions

· Undertake estimates in accordance with the SZC policies and procedures.

· Review SZC’s drawings and specifications to prepare accurate costing sheets for materials, labour and equipment

· Oversee and/or interrogate design options and ‘value’ solutions, and if appropriate, identify the attractiveness of a project based on sound estimating principles.

· Mentor and support more junior members of the team.

· Record assumptions and identify risks and opportunities including supporting developing the risk evaluation from a pricing/budgetary point of view.

· Liaise with members of the project team & supply chain to develop and understand methodologies and principles proposed.

· Oversee and supervise other to and/or develop from first principles labour, plant material, subcontract pricing within the Alliance’s Estimating Software Candy.

· Oversee and supervise other to and/or develop or check bills of quantities used to present alliance pricing using the Alliance’s quantification Software Cost X.

· Record and track change to the estimate / budget as the estimate inputs mature

What are we looking for?

Knowledge, Skills, Qualifications & Experience

Knowledge & Skills

Essential

· Proficient in the use of excel and similar software.

· Excellent client facing/communications skills

Desirable

· Experienced estimating background using Candy Estimating Software.

· Experienced estimating background using RIB Cost X Quantification & Estimating Software.

· Experience of working with the AACE principles of Estimating Class and associated maturity

· Mobile and flexible

Qualifications & Experience

Essential

· Infrastructure Main Contractor background ideally in the Civil engineering market.

· Commercial or operational background considered.

Desirable

· Chartered by relevant industry recognised chartership e.g., ICE, CICES, RICS, CIOB Etc

What we will offer you?

The CWA is a single delivery organisation made of up of the client (Sizewell C) and three parent companies - Balfour Beatty, Bouygues and Laing O'Rourke - which offer industry leading packages including market leading salaries, generous annual leave entitlements, pension scheme and other flexible benefits.

About Us

The CWA celebrates the creativity and innovation that comes from a diverse workforce, and we welcome applications from people of all backgrounds — especially those from under‑represented communities. Our project is built on five core values: Humility, Positivity, Respect, Solidarity, and Clarity.

By joining us, you’ll be encouraged to bring your whole self to work, speak up, and share your ideas. We encourage applications from all suitably qualified candidates, regardless of gender, race, disability, age, sexual orientation, gender reassignment, religion or belief, marital status, or pregnancy and maternity.

We are committed to protecting your privacy. If you decide to apply, please avoid including sensitive personal data in your CV

Advert last confirmed live on 29 October 2026 · Partner reference 225775849