Interim Assistant Commercial Manager

We are seeking an experienced Interim Assistant Commercial Manager to support the delivery of high-profile procurement and commercial activities across a diverse portfolio of social impact and corporate services…

Inside IR35 Business Support
Pay rate £300 – £360/day
Job type Temporary
Posted 2 September 2026

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About this job

We are seeking an experienced Interim Assistant Commercial Manager to support the delivery of high-profile procurement and commercial activities across a diverse portfolio of social impact and corporate services programmes. This is an excellent opportunity to work on projects that make a tangible difference to communities, including initiatives focused on rough sleeping, domestic abuse support and retrofit programmes.

Client Details

A public sector organisation operating in procurement and supply chain.

Description

Key responsibilities for the Interim Assistant Commercial Manager include:

Lead procurement activities from initiation through to contract award and implementation.
Manage low-value and selected high-value procurements, with contract values up to approximately £5 million.
Draft Requests for Proposals (RFPs), pricing schedules, governance papers, and approval documentation.
Review, draft, and manage contracts and contract variations.
Ensure compliance with procurement regulations, governance requirements, and internal processes.
Work closely with stakeholders to develop market-ready specifications and procurement strategies.
Maintain accurate procurement records and supporting documentation.
Support engagement with a variety of stakeholders and partner organisations.

Profile

A successful Interim Assistant Commercial Manager should have:

Proven experience managing procurement processes end-to-end.
Strong document drafting skills, particularly for governance papers, procurement documentation, and commercial reports.
Excellent analytical, organisational, and problem-solving abilities.
Strong understanding of procurement regulations and governance processes.
Ability to manage multiple priorities and deliver work to tight deadlines.
Excellent communication and stakeholder management skills.

Job Offer

Daily rate of £350 inside IR35.
2 days per week on-site in London.
6 month contract duration.
Temporary contract within the public sector

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