Senior Piping Estimator

Job Title: Senior Piping Estimator

Location: Aztec West Bristol Hybrid Working Arrangement

Compensation: Attractive Salary Benefits

Role Type: Full time / Permanent

Role ID: SF72655

Shape the Future of One of the United Kingdoms Most Critical Nuclear Programmes.

At Cavendish Nuclear were working to create a safe and secure world together and if you join us you can play your part as a Senior Piping Estimator at our Aztec West Bristol site.

The role

As a Senior Piping Estimator youll have a role thats out of the ordinary. Youll take ownership of developing highquality defensible cost estimates for piping and mechanical work packages across a major nuclear infrastructure project. Your work will directly inform planning commercial strategy forecasting and governance ensuring cost certainty and confidence at every stage of delivery.

Day-to-day youll be required to:

• Prepare detailed piping and mechanical cost estimates covering labour materials equipment subcontracted services preliminaries and indirects
• Develop and maintain robust Basis of Estimate documentation clearly defining scope assumptions and methodologies
• Validate estimates using historical data productivity norms and industry benchmarks
• Collaborate closely with engineering planning procurement and construction teams to ensure accuracy and alignment
• Support change control forecasting commercial negotiations and estimate assurance activities

This is a fulltime role working 37 hours per week based at Aztec West Bristol. Hybrid working patterns are available. You will work a minimum of two days a week onsite.

Essential experience of the Senior Piping Estimator:

• Extensive estimating experience within large complex infrastructure energy or nuclear projects
• Strong technical understanding of piping fabrication mechanical installation welding inspection and testing
• Proven experience developing estimates from early development stages through to project delivery
• Sound knowledge of estimating methodologies work breakdown structures and cost breakdown structures
• Experience reviewing supplier and subcontractor pricing to support commercial decisions

Qualifications for the Senior Piping Estimator:

• Degree or equivalent qualification in Engineering Construction Management Quantity Surveying or a related discipline
• Professional membership or certification would be advantageous (for example AACE RICS ICES or equivalent)

Security Clearance

The successful candidate must be able to achieve and maintain Standard (BPSS) security clearance for this role. Further details are available at United Kingdom Security Vetting: clearance levels - ()

What we offer

• Generous holiday allowance
• Matched contribution pension scheme with life assurance
• Access to a Digital GP annual health check and nutritional consultations through Aviva DigiCare
• Employee share scheme
• Employee shopping savings portal
• Payment of Professional Fees
• Reservists in the armed forces receive 10-days special paid leave
• Holiday Trading is a benefit that allows UK Cavendish employees to buy additional leave or to sell up to one working week of annual leave from their annual entitlement. This Window opens February through to March annually.
• Be Kind Day enables employees to take one working days paid leave a year (or equivalent hours) to undertake volunteering work with their chosen organisation or registered charity
• Excellent development opportunities and benefits package including an employee assistance programme supporting physical mental and financial wellbeing.

Cavendish

Were Cavendish Nuclear a team of c5000 specialists and a core part of Babcock International Group.

Here youll be part of something bigger. Across clean energy defence and civil decommissioning your work will contribute to projects that are critical to energy security and national protection. Together were shaping a future that lasts not only through the impact we make but through meaningful careers that respect your work-life balance.

Join us and discover how far we can go together.

We are a disability confident committed employer. If you have a disability or need any reasonable adjustments during the application and selection stages please email with the subject header Reasonable adjustments requirement. Were committed to building an inclusive culture where everyones free to thrive. We are happy to talk about flexible working please ask about alternative patterns of work at interview.

Closing date: 04/05/2026

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