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Commercial Manager

ASSYSTEM


Job Location:

Warrington - UK

Monthly Salary: Not provided by the employer
Posted: 24 September 2026 (12 hours ago)
Application Deadline: 22 December 2026
Vacancies: 1 Vacancy

Job Summary

Commercial Manager

Part-Time (3 days per week)

The Commercial Manager will provide commercial leadership governance and assurance within a highly regulated environment.

Working closely with senior leadership Project Managers Finance Procurement Project Controls and delivery teams the role will ensure strong commercial performance contract management and financial governance.

A key focus will be supporting projects throughout the commercial lifecycle particularly project performance contract close-out transition activities and ensuring projects finish strong.

Key Responsibilities

Commercial Leadership & Governance

Provide commercial leadership advice and assurance to project and business leadership teams.

Support informed commercial and contractual decision-making.

Ensure compliance with contracts delegated authorities company policies and governance requirements.

Maintain effective commercial processes controls reporting and governance.

Identify and manage commercial risks opportunities and contractual obligations.

Promote consistent commercial best practice across projects and business areas.

Project Reviews & Commercial Assurance

Lead monthly project reviews and provide clear insight into project performance.

Review and challenge costs forecasts EAC/FTC budgets purchase orders milestones risks opportunities and change.

Track actions arising from project reviews and escalate significant issues to senior leadership.

Develop concise commercial dashboards and management information to support decision-making.

Contract Close-Out

Lead the commercial close-out of projects and contracts.

Manage outstanding contractual actions final accounts changes purchase orders accruals claims disputes subcontractor close-out and financial reconciliation.

Establish a consistent contract close-out process and ensure lessons learned are captured.

Work with stakeholders to ensure contracts are formally and effectively closed.

Finishing Strong

Develop a practical and repeatable commercial approach for projects approaching completion.

Support project teams with commercial close-out change management final forecasting risk supply-chain close-out deliverables lessons learned and audit requirements.

Monitor implementation and report progress and emerging issues to leadership.

Wider Commercial Support

Provide commercial support challenge and assurance across projects and business areas.

Support reporting forecasting governance and commercial decision-making.

Promote consistent commercial management processes across the organisation.

Contract & Change Management

Manage contracts throughout the lifecycle from pre-award through delivery to final close-out.

Administer NEC and where applicable FIDIC contracts.

Manage variations compensation events claims change and commercial negotiations.

Ensure changes are identified notified assessed and reflected in forecasts and reporting.

Maintain robust contractual records and support dispute resolution where required.

Procurement & Supply Chain

Support procurement strategy ITTs tender evaluations negotiations and contract awards.

Review and approve commercial documentation within delegated authority.

Manage key supplier and subcontractor relationships and monitor commercial performance.

Support supplier final accounts and contract close-out.

Stakeholder Management

Build strong relationships with clients partners suppliers and internal stakeholders.

Collaborate with Project Management Procurement Finance Legal Project Controls Engineering and Delivery teams.

Communicate complex commercial matters clearly to commercial and non-commercial audiences.

Represent the commercial function at project governance and senior leadership meetings.

Team Development & Knowledge Transfer

Provide mentoring guidance and commercial support to project teams and developing commercial professionals.

Share commercial knowledge best practice and lessons learned.

Ensure effective knowledge transfer and handover to maintain continuity during organisational or personnel changes.


Qualifications :

The successful candidate will demonstrate:

Strong commercial and contract management experience within major projects or complex programmes.

Experience managing multiple projects or contracts simultaneously.

Strong knowledge and practical application of NEC contracts.

Demonstrable experience of contract administration change control claims variations and commercial negotiations.

Experience of taking contracts and projects through commercial close-out and final account.

Strong understanding of project financial management including forecasting EAC cost control cash flow and variance analysis.

Degree or equivalent professional experience in Quantity Surveying Commercial Management Construction Engineering Law Business or a related discipline is desirable.

Desirable

Degree or equivalent professional experience in Quantity Surveying Commercial Management Construction Engineering Law Business or a related discipline is desirable.

Professional membership or working towards membership of an appropriate professional body such as RICS CICES or CIOB is desirable.

Relevant NEC accreditation or formal contract-management training would be advantageous.


Additional Information :

Whilst we encourage applications from all nationalities Assystem within the UK are subject to security and export control restrictions due to the nature of work to be undertaken.

These restrictions mean that factors including your nationality any previous nationalities you have held and/or your place of birth may limit those roles that you can perform for the organisation.

NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services request payment or ask for sensitive personal information during the recruitment process.

We are committed to equal treatment of candidates and promote as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills talent and our peoples ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.


Remote Work :

No


Employment Type :

Contract


About Company

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Assystem, one of the world's leading independent nuclear engineering companies, is committed to accelerating the energy transition. We see ourselves as an activist in the development of nuclear energy, convinced that it is an essential part of the fight against climate change. 7,500 ... View more

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