Senior Project Manager – TOC Assurance (Heavy Civils)

Mactech Energy Group

Job Title: Senior Project Manager (SPM) – TOC Assurance, Heavy Civils

Pay: Dependant on Experience

Location: Suffolk/London/Hybrid working

Job Purpose / Overview

The Senior Project Manager (SPM) – TOC Assurance will lead assurance, governance, and commercial oversight

activities across major heavy civil infrastructure packages at Sizewell C.

This role focuses on ensuring that Target Outturn Cost (TOC) development, procurement strategies, and pre-construction

planning are robust, auditable, and aligned with programme objectives and value-for-money principles. The candidate

should have working knowledge or estimating and construction programmes, along with QSRA and QCRA Monte Carlo

risk analysis.

The SPM will bring extensive experience from a contractor or consultancy environment, with deep expertise in

procurement, quantity surveying, and pre-construction delivery.

Key Responsibilities

TOC Assurance & Commercial Oversight

– Lead independent assurance of TOC submissions across heavy civils scope (earthworks, marine, tunnelling,

structures, enabling works)

– Working knowledge of bottom up cost cost estimating, risk allowances, and pricing strategies

– The ability to challenge contractor assumptions, methodologies, and commercial and risk positions

– Ensure compliance with programme governance and assurance frameworks

– PAA Contractual knowledge is preferable

Pre-Construction Leadership

– P Provide strategic knowledge into procurement strategies and packaging approaches

-Oversee TOC development including evaluation, clarification, and negotiation – -Review scope definition and contract documentation

– Ensure alignment between TOC strategy and TOC development

Stakeholder & Interface Management

– Act as a key interface between client, contractors, and internal teams

– Lead assurance reviews, workshops, and governance forums

– Provide regular reporting and recommendations to senior stakeholders

Financial (For example: Investments, Funding, Budget or Programme costs)

– Working knowledge of the Capital Programme budget forecasting along with transition of programme elements

back to influence of the costs and budgets

Risk (for example Capital, Project or Performance risks)

– Working knowledge of the capital projects and related risk identification, quantification and analysis

– Working knowledge of Quantitative Risk Analysis including Monte Carlo simulation for QSRA and QCRA

– Minimum 15+ years’ experience in heavy civils or major infrastructure

– Strong background in:

o Procurement

o Pre-construction / estimating

o Quantity surveying / commercial management

– Experience within a Tier 1 contractor or major projects delivery organisation

– Proven track record in TOC, target cost, or cost assurance roles

Technical Expertise

– Deep understanding of:

o Pre-construction development, cost planning and estimating methodologies

o PAA/NEC/target cost contracting models

o Infrastructure delivery lifecycles

– Ability to interrogate complex cost submissions

Skills & Competencies

– Strong commercial judgement and analytical capability

– Ability to challenge senior stakeholders constructively

– Excellent communication and reporting skills

– Structured, detail-oriented, delivery-focused approach

Qualifications

– Degree in Quantity Surveying, Commercial Manag