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Senior Estimator - Civils/Infrastructure - Nuclear

Tribuild | Whitehaven, United Kingdom | Posted June 14, 2026

Position Overview

Senior Estimator - Major Infrastructure (Sellafield)

Location: Sellafield, Cumbria
Salary: circa ~£70-80,000 + package
Job Type: Permanent

TRIbuild Solutions are recruiting a Senior Estimator to support a major infrastructure upgrade programme at Sellafield, working with a leading Tier-1 contractor.

This is a key role within the pre-construction team, responsible for leading estimates across complex civils and infrastructure packages within a highly regulated nuclear environment.

Key Responsibilities:

  • Lead and prepare detailed cost estimates for major infrastructure works
  • Review drawings, specifications and tender documentation
  • Engage with supply chain to obtain accurate pricing
  • Identify risks, opportunities and value engineering options
  • Support bid submissions and commercial strategy

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