Commercial Support Manager in Aylesbury

This role supports the management of relationships between Biffa and its subcontracted service partners. Responsibilities include price negotiation, onboarding new products, and desk-based supplier management for partners with an annual spend under £150k. The role also ensures suppliers meet agreed KPIs and SLAs, maintain compliance standards, and manages background data and pricing tables for suppliers overseen by the Commercial Managers.

Your core responsibilities:

• Act as a key point of contact between the business and a portfolio of subcontracted service partners.
• Support Commercial Managers with supplier strategy, service performance, compliance, and pricing negotiations.
• Manage a portfolio of suppliers with annual spend under £150k, ensuring strong commercial and operational performance.
• Maintain and manage supplier data, pricing tables, and account information.
• Negotiate improved commercial terms, including annual cost increases such as landfill tax.
• Implement and manage SLAs and KPIs to drive supplier performance.
• Resolve supplier invoice queries in collaboration with the invoice reconciliation team.
• Produce clear commercial reporting to identify opportunities and risks across your patch.
• Provide full administrative support across all aspects of supplier management.

Requirements:

Our essential requirements:

• Strong attention to detail with a compliance-driven mindset.
• Confident, articulate communicator with the ability to build and maintain effective supplier relationships.
• Analytical and commercially minded, able to assess issues, interpret financial data, and deliver practical solutions.
• Proven experience managing suppliers and delivering against KPIs.
• Resilient and adaptable, with the ability to perform under pressure and meet tight deadlines.
• Organised and proactive, able to plan, prioritise, and manage multiple tasks.
• Skilled in negotiation and conflict resolution to achieve positive outcomes.
• Trustworthy and professional, with the ability to handle confidential information.
• Competent in Microsoft Office, particularly Excel.
• Minimum GCSE (or equivalent) in Maths and English, with flexibility to travel and a willingness to develop.

At Biffa, we love working with waste. Whether we’re turning it into sustainable power, finding new ways to recycle it or simply keeping it off the streets, we believe every day is an opportunity to improve the lives of millions. It’s a view that’s shared by our 11,500+ people around the country, who trust us to provide them with a career that’s always rewarding, often challenging, but never dull. And it’s why we’re the UK’s No. 1 choice for business waste management.

Being inclusive is core to our culture at Biffa; we believe different ideas, perspectives and backgrounds are key to developing a creative and effective working environment that represents our communities and generates the best outcomes for colleagues, customers and stakeholders, which is why you’ll find us championing diversity, equity and inclusion at every turn.