Senior Estimator

About this role

Responsibilities

• Develop project-level baseline cost estimates (AACE Class 3–5) across a diverse portfolio of nuclear decommissioning, waste management, and remediation projects.
• Produce comprehensive Bases of Estimate (BOE) for each project, including methodology narrative, source data, escalation rationale, key assumptions, exclusions, and stated accuracy range.
• Apply parametric, analogous, and bottom-up estimating methodologies; select the appropriate approach based on available information and document the rationale explicitly.
• Develop time-phased cost profiles integrated with project schedules; collaborate with senior schedulers on cost loading, resource histograms, and S-curve generation.
• Provide cost uncertainty inputs (P10/P50/P90 distributions, key cost drivers) to the project risk and quantitative risk analysis process.