9.2

/10

Transparency ranking

Job Description

Job Description:

Activity Manager- 12 months FTC

Location: Slough/Maidenhead + 50% Hybrid Working

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

The Activity Manager will oversee cross functional teams to deliver projects within challenging timelines. The role is critical in ensuring delivery of the Drinks & Treats innovation pipeline and other product activities whilst maintaining quality, speed and agility. These projects include new product development, core product optimisation and structural changes such as system/process implementation.

What are we looking for?

  • Experience managing and delivering complex projects through cross-functional teams.
  • Proven track record of delivering successful projects, with experience working with 3rd party suppliers (ideally in food manufacturing).
  • Strong communication, interpersonal, and critical thinking skills with the ability to prioritize effectively.
  • Highly organized, driven, and a strong problem-solver, with a proactive approach to making things happen.

What will be your key responsibilities?

  • Oversee projects from brief to market completion across multiple categories.
  • Organize and drive cross-functional teams to meet activity objectives and deliverables.
  • Serve as a neutral mediator, guiding critical conversations to ensure proper conclusions.
  • Manage project timelines, identify critical paths, and solve issues to keep projects on track.
  • Share learnings with stakeholders to drive continuous improvement.
  • Within 3 months, you’ll lead project meetings; by 6 months, motivate teams and understand their impact on the business.

What can you expect from Mars?

  • Work with 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.
  • 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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Mars is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law. If you need assistance or an accommodation during the application process because of a disability, it is available upon request. The company is pleased to provide such assistance, and no applicant will be penalized as a result of such a request.

Company benefits

Open to part-time employees
Open to job sharing
Open to compressed hours
Sabbaticals
Enhanced maternity leave – 26 weeks at 90% pay
Enhanced paternity leave – 26 weeks at 90% pay
24 days annual leave + bank holidays
“Pawternity” leave
Pregnancy loss leave
Bank holiday swaps
Shared parental leave
Adoption leave
Family health insurance
Pregnancy support
Neo-natal leave
Faith rooms
Meditation space
Dog friendly office
Dog friendly co-working space
Annual bonus
Employee discounts
Cinema discounts
Referral bonus
Joining bonus
Cycle to work scheme
Electric Car Salary Sacrifice
Enhanced pension match/contribution
Theme park discounts
Lunch and learns
In house training
LinkedIn learning license
Studying sabbaticals
Open to part time work for some roles

Working at Mars UK

Company employees

4,000 In the UK

Gender diversity (male:female)

57:43

Currently Hiring Countries

France

Poland

United Kingdom

Office Locations

Awards & Achievements

1st – Family Friendly

1st – Family Friendly

Flexa awards 2025
2nd – Pet Friendly

2nd – Pet Friendly

Flexa awards 2025
Flexible

Flexible

Flexa awards 2025
Diversity and Inclusion

Diversity and Inclusion

Flexa awards 2025
Work-Life Balance

Work-Life Balance

Flexa awards 2025
Career Progression

Career Progression

Flexa awards 2025
Culture

Culture

Flexa awards 2025
Benefits

Benefits

Flexa awards 2025
1st – Large companies

1st – Large companies

Flexa100 2024
Consumer Goods

Consumer Goods

Industry awards 2023
3rd – Large companies

3rd – Large companies

Flexa100 2023
Retail & Ecommerce

Retail & Ecommerce

Industry awards 2022