Senior Estimator - Sizewell C
Greater London, London, Greater London, W1B, England, UK
Listed on 2026-09-14
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Construction
Estimator, Civil Engineering, Building & Residential Construction -
Engineering
Estimator, Civil Engineering
About The Role
Be part of this ‘once in a generation’ project that will deliver clean energy to 6 million homes for the next 60 years. Sizewell C will see the creation of a 3.2 Gigawatt nuclear power station on the Suffolk coast to provide reliable low‑carbon electricity. The Civil Works Alliance is an extended delivery enterprise involving Sizewell C and three international construction companies:
Balfour Beatty, Bouygues Travaux Publics and Laing O’Rourke. We are more than just an alliance, we are bringing together a single delivery organisation with years of learning and experience from other major complex infrastructure programmes worldwide.
- Feeding into the Lead Estimator and the Head of Estimating on the project to ensure consistency in estimating approach set out by the client.
- Work closely with a Lead Estimator or on own to produce various estimating documentation that can be assured both internally and externally.
- Developing estimates from 1st Principles associated with the work package of the Sizewell C Project.
- Feeding into Balfour Beatty Estimating lead on project to ensure consistency in estimating approach set out by the client.
- Be a senior member of the team developing the price, mentoring and supporting more junior members of the estimating team.
- 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
- Proficient in the use of excel and similar software.
- Excellent client facing/communications skills
- 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
- Infrastructure Main Contractor background ideally in the civil engineering market.
- Commercial or operational background considered.
- Chartered by relevant industry recognised chartership e.g., ICE, CICES, RICS, CIOB Etc
Day in, day out, our teams deliver some of the UK’s most ambitious, exciting and meaningful projects; developing, building and maintaining the vital infrastructure that supports national economies and strengthens communities.
Why join us?- Smart working, giving you more flexibility such as staggered start and finish times, with up to 40% remote working, where roles allow.
- 25 days paid annual leave (pro rata)
- Family friendly policies which include 28 weeks full pay for maternity/adoption leave and four weeks full pay for paternity/partners leave
- Pension, share incentive plan, volunteering leave, recognition schemes and much more…
Balfour Beatty’s Major Projects business is delivering some of the UK’s most complex and iconic infrastructure projects including HS2, the new high-speed railway and the first nuclear power station in a generation, Hinkley Point
C. Using the latest technology, we’re driving productivity and creating a lasting legacy by delivering sustainable solutions that strengthen communities. From consultancy and design, to all aspects of construction and maintenance. We have the proven expertise to deliver large-scale projects safely and successfully.
At Balfour Beatty we believe that diversity and inclusion are essential components of any successful, happy workplace. Through our Value Everyone Diversity and Inclusion Strategy and Action Plan, we are growing our diverse workforce and developing our inclusive culture where everyone is able to thrive and…
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