Assistant Commercial Manager - IT

Sizewell C Company; Royal Borough of Greenwich; Hybrid; GBP 42,000 - 52,000; Full time

Benefits offered by this job

Bonus 5% annual incentive

Pension up to 7.5% employee / 15% empr

28 days leave + bank holidays

Hybrid working

Job summary

Sizewell C Company is seeking an Assistant Commercial Manager for IT & Digital, focusing on end-to-end procurement and commercial activities. You will lead sourcing, strategy development, and contract awards across IT & Digital portfolios while engaging with stakeholders and suppliers to secure value-for-money outcomes.

The role involves managing supplier relationships, negotiating complex contracts, and partnering with Legal to ensure robust governance throughout the contract lifecycle.

Qualifications

• Experience in IT procurement and commercial activities.
• Strong stakeholder management and communication skills.
• Experience negotiating high-value, complex contracts across multiple stakeholders.
• Robust understanding of commercial law and contractual terms.
• Awareness of contract performance measurement and risk management.

Responsibilities

• Lead sourcing and procurement from strategy to contract award, execution, and implementation.
• Negotiate terms with suppliers and manage commercial risk while ensuring value-for-money.
• Adopt commercial best practices and lessons learned to drive continuous improvement.
• Manage contracts across the lifecycle, including amendments, extensions, and change control.
• Collaborate with Legal to negotiate positions and ensure governance is followed.
• Maintain procurement records and reporting dashboards.
• Support supplier relationship management and performance improvement.

Skills

IT procurement

Stakeholder management

Contract management

Commercial negotiations

Vendor relations

Education

Graduate / Postgraduate in Supply Chain

MCIPS accreditation preferable

Tools

Jaggaer

SAP 4HANA

Oracle

CEMAR

Unifier

Job description

Assistant Commercial Manager - IT

Location: London, Manchester, Suffolk

Contract: Permanent, full-time.

Closing Date: 30th September 2026

What's in It for You

• Salary: Upto £47,000 (depending on experience)
• Bonus: 5% annual incentive
• Pension: Up to 7.5% employee / 15% employer contribution
• Leave: 28 days holiday plus bank holidays
• Hybrid Working:Typically,2-3 days in the office per week, with flexibility based on business needs

Overview

The Assistant Commercial Manager - IT & Digital' is responsible for commercial delivery against agreed procurement strategies, providing support to the Category Manager in meeting the category's objectives, predominantly across the IT and Digital portfolio. Strong experience in developing and implementing technology procurement and category strategies and leading on commercial negotiations. Ability to apply appropriate challenge through effective stakeholder engagement with SZC digital stakeholders. Managing strategic supplier relationships and ensuring robust governance throughout the contract lifecycle, whilst driving continuous improvement and best practice.

Your Impact

Our Commercial IT & Digital team plays a key role in enabling delivery and construction to support one of the UK's largest and most exciting infrastructure projects. The Assistant Commercial Manager is a key role in delivering end-to-end procurement and commercial activities across SZC's Digital portfolio. Working autonomously across sourcing and contract management activities, you will lead procurement exercises from strategy development through to contract award and execution, whilst acting as a trusted commercial advisor to stakeholders and managing key supplier relationships.

Accountabilities

• Support and lead on sourcing and procurement activities from strategy development through to contract award, execution, and implementation.
• Conduct commercial and contractual negotiations with suppliers, effective management of commercial risk, whilst securing value-for-money outcomes.
• Adopt commercial best practice approaches and lessons learnt in all procurement activities undertaken to drive continuous improvement.
• Manage commercial aspects of contracts throughout the contract lifecycle, including contract amendments, extensions, change control, and dispute resolution.
• Acting as cost consciousness of the business to stakeholders across IT, Digital, Legal, Finance and other business functions, supporting delivery of business objectives.
• Work collaboratively as the conduit with Legal to negotiate contractual / commercial positions, ensuring risks are appropriately assessed, mitigated, and governed.
• Maintain accurate procurement records and reporting dashboards.
• Manage supplier relationships and support supplier performance management activities to drive continuous improvement and successful contract delivery.
• Coordinate commercial governance activities, including preparation of approval papers and ensuring compliance with organisational governance frameworks.
• Support the development and implementation of category strategies, market analysis and supplier segmentation activities to drive long-term value.

Organisation Chart

Reporting to Category Manager - IT & Digital.

Knowledge & Skills

• Track record in supporting/leading IT procurement and commercial activities, including supplier negotiations and contract management.
• Proven ability in stakeholder management and communication skills.
• Experience negotiating and managing high-value, complex contracts across multiple stakeholders and suppliers.
• Robust understanding of commercial law and contractual terms.
• Awareness of contract performance measurement, commercial risk management and change.

Qualifications & Experience

• The post holder should ideally hold graduate / post graduate qualification(s) related to Supply Chain or MCIPS accreditation is preferable.
• Experience working in cross-functional teams and advising senior management
• Demonstrated managing supplier relationships and performance throughout the contract lifecycle, with the ability to build effective partnerships whilst maintaining appropriate commercial tension.
• Understanding of developing and managing cross-functional relationships across a complex portfolio of responsibilities.
• Experience in working with commercial systems - tools covering activities like eSourcing (Jaggaer) Purchase to Pay (SAP 4 HANA, Oracle) and Contract Management (CEMAR, Unifier).

Why Join Us

• A major infrastructure project with national impact
• Hybrid working with flexibility built in
• Competitive salary,bonusand benefits
• Clear progression and development opportunities
• Supportive, collaborative team environment

Behavioural Competences

Humility

• Recognise the value brought from different cultures and experiences.
• Be open to other's points of view and ideas, be willing to debate and to compromise.

Positivity

• Positively challenge poor quality and performance.
• Identify solutions at the lowest possible level.
• Encourage others to bring new ideas forward.

Respect

• Value the rules and environment in which we operate.
• Give and receive feedback with respect.
• Embrace and engage with new people and ideas.

Solidarity

• One team, working closely together and helping each other.
• Empowered teams always looking forward.
• Shared responsibility for delivery the project outcomes.

Clarity

• Communicate clearly and consistently.
• Promote collaboration and team alignment.
• Clearer and faster decision making.
• Drive simplification at all levels.