At Amentum, we're not just solving problems; we're engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in science, security, and sustainability. If you're passionate about making a real impact and want to be part of a community that values ethical excellence, this is the place where your ambition can thrive.

Here, we believe that success comes from continuously pushing boundaries and working together to deliver on our promises. We embrace challenges with confidence and are dedicated to creating a secure and vibrant future for all.

We’ll inspire and empower you to deliver your best work so you can evolve, grow and succeed – today and into tomorrow.  We offer an exciting range of opportunities to develop your career within a supportive team who always strive to do the right thing for our people, clients and communities.

Work-life balance and flexibility is a key focus area for us. We’re happy to discuss hybrid, part-time and flexible working hours, patterns and locations to suit you and our business.

About the Opportunity

The Senior Procurement Buyer is a strategic procurement leadership role responsible for category and commodity strategy, end-to-end sourcing, complex commercial contracting, supplier performance and resilience across major defence and energy programmes. The role provides senior procurement advice to programmes and bids, drives compliant and cost-effective supply chain outcomes, and supports business growth, mobilisation and capability development.

Key Responsibilities

Strategic Procurement & Category Leadership

• Lead complex, high-value procurement activity across the full lifecycle, including sourcing strategy, tendering, evaluation, negotiation, contract drafting and award.

• Provide senior procurement and commodity-management advice to programme, bid and capture teams, shaping pricing strategies, supply chain solutions, risk assessments and mobilisation plans.

Commercial, Contracting & Supplier Management

• Lead contract and framework agreement development and negotiation with Legal and Commercial teams, including terms and conditions, subcontract requirements and flow-down obligations.

• Optimise supplier bases and approved supplier lists, ensuring suppliers meet required technical, quality, security and regulatory standards.

Risk, Governance & Compliance

• Ensure procurement and supply chain activities comply with internal governance, audit and assurance requirements and applicable defence and energy regulatory frameworks, including export-control considerations.

• Maintain awareness of regulatory, geopolitical and commodity-market developments and adjust category and sourcing strategies accordingly.

Leadership & Stakeholder Engagement

• Work closely with Engineering, Projects, Quality, Security, Commercial and Legal teams to embed specifications, standards, compliance and delivery requirements within sourcing strategies.

• Provide direction and oversight to procurement support resources.

Here's What You'll Need

• MCIPS required; Chartered status preferred.

• Relevant degree in Supply Chain, Business, Engineering or a related discipline, or equivalent experience.

• Extensive procurement leadership experience in defence, nuclear, infrastructure, energy or another highly regulated environment.

• Proven success leading strategic sourcing, category management, high-value procurement and supply chain transformation initiatives.

• Strong experience managing complex contracts and commercial negotiations; knowledge of contracting models such as NEC and FIDIC is highly desirable.

• Demonstrable supplier relationship, performance, risk and resilience management capability.

• Experience supporting major bids, capture activity and programme mobilisation.

Our Culture

Our values are built on a strong foundation of safety, integrity, and respect for every individual. People are at the heart of our mission, and we believe in supporting one another through a culture of care and collaboration.

We strive to create a workplace where everyone feels they belong and can thrive. Supporting mental wellbeing and fostering a sense of connection are essential to how we work.

When we embrace different perspectives and work together, we become more innovative, more agile, and more successful.

We partner with VERCIDA, for greater online accessibility please visit www.vercida.com to view and access our roles. As a Disability Confident employer, we will interview all disabled applicants who meet the minimum criteria for a vacancy. We welcome applications from candidates who are seeking flexible working and from those who may not meet all the listed requirements for a role.

If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact Alice.Petch@global.amentum.com