People and Operations (P&O) Business Partner, Global M&M'S Ecosystem

Job Description:

Job Title: People and Operations (P&O) Business Partner, Global M&M'S Ecosystem (T2)

Location: London, Leicester Square M&M’S Store

Ready to make a meaningful impact on the people experience behind one of the world's most iconic brands? As the P&O Business Partner, Global M&M'S Ecosystem, you'll play a pivotal role in shaping the associate experience, partnering with leaders across multiple international markets to help our teams and business thrive.

Based in London, you'll support stakeholders across the Global M&M'S Ecosystem, including teams in the UK, Germany, France, and China. You'll act as a trusted advisor, delivering people solutions that drive business performance, organisational effectiveness, and an exceptional employee experience. This is an opportunity to influence a global, high-performing retail organisation while helping leaders navigate complex people challenges.

If you're passionate about partnering with leaders, solving complex people challenges, and building inclusive, high-performing teams on a global scale, this is an opportunity to make a real impact across the M&M'S Ecosystem while continuing to grow your own career.

What are we looking for?

• Comprehensive relationship-building, and influencing skills, with experience partnering with senior leaders on people-related decisions.
• Ability to navigate ambiguity, competing priorities, and complex employee or organisational matters using sound judgement.
• Commercial mindset with the ability to balance strategic business needs and operational HR priorities.
• Solid HR/P&O expertise, including a good understanding of UK employment law, employment practices, and employee relations.
• Collaborative and culturally curious approach, with the ability to work effectively across multiple geographies, cultures, and stakeholder groups.
• High integrity, discretion, and professional maturity, with a passion for creating positive associate experiences and handling sensitive information confidentially.

Nice-to-Haves

• HR Business Partner experience, ideally supported by a background in Employee Relations, Talent, People Operations, or another HR specialist discipline.
• Experience working with international stakeholders, including teams across Europe and/or Asia.
• Exposure to retail or customer-facing environments, organisational change, consultation processes, and workforce planning initiatives.

What will be your key responsibilities?

Strategic Partnership:

• Collaborate with the Leadership of the M&M'S stores to define and implement the P&O strategy in alignment with business priorities.
• Provide insights and recommendations on organisational design and effectiveness,

Culture, Talent Management & Development:

• Support and coach the leaders across the M&M'S ecosystem.
• Lead Mars' signature talent management processes: performance and development reviews (MDR), succession planning, and merit/compensation cycles.
• Support Store Directors and other line managers in executing the talent strategy to develop the organisation's future leaders.

Culture, Engagement & Associate Relations:

• Foster a culture that drives engagement and performance: Support teams to complete MAS (Mars Associate Survey) impact planning sessions and regular follow through.
• Ensure a transparent and trusted Associate experience, in partnership with Associate Relations, our shared service centre, and Rewards experts.
• Participate in cross-functional HR projects aligned with our strategic priorities.

Organisational Design & Workforce Planning:

• Support the P&O Sr. Director and the M&M'S Leadership Team in the design of the organisation: recruitment, workforce planning, org structure, ways of working.
• Partner with business leaders, finance, and data teams to monitor key metrics (headcount, wages, turnover) and drive data-led recommendations.

What can you expect from Mars?

• Work with over 140,000 diverse and talented Associates, all guided by the Five Principles.
• Join a purpose-driven company, where we’re striving to build the world we want tomorrow, today.
• Best-in-class learning and development support from day one, including access to our in-house Mars University.
• An industry-competitive salary and benefits package, including company bonus.