Job Description:

Activity Manager

Location: Slough + 50% Hybrid Working 

Salary: £50,000-£60,000 + Bonus + Benefits  
 

We're looking for an experienced project leader to drive innovation across our Drinks & Treats category. You'll collaborate with internal teams and external partners to bring new products to life—on time, with impact, and in line with our Purpose. If you enjoy solving problems, keeping projects moving, and working with brilliant people, this could be your next move.

What are we looking for?

Demonstrated project management and organisational skills, with experience leading cross-functional teams in FMCG environments.A track record of delivering projects to tight timelines without compromising quality.Experience collaborating with third-party suppliers—ideally in food manufacturing.Effective communication and problem-solving skills with the ability to prioritise in fast-paced settings.Motivated by progress, with the ability to guide discussions and reach shared outcomes.Knowledge of demand-led or supply-constrained FMCG operations.

What will be your key responsibilities?

Lead innovation and optimisation projects from brief through to market launch.Mobilise cross-functional teams—including third-party manufacturers—to deliver project milestones.Guide conversations and mediate priorities to align stakeholders and maintain project momentum.Monitor and manage timelines, flag risks, and implement solutions to keep launches on track.Build strong relationships with internal and external partners across categories.

What can you expect from Mars?

Work with diverse and talented Associates, guided by the 5 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.Access Rover, Mars UK’s new hub for Rewards, Offers, Vouchers and Recognition. Featuring cashback, exclusive deals, shopping discounts, and a recognition wall to celebrate colleagues’ achievements.

Mars is committed to providing access, equal opportunity, and reasonable adjustments for individuals with disabilities, long term health conditions or are neurodiverse during the application and recruitment process. To request reasonable adjustments, complete our Reasonable Adjustment Request Form here.

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