Mars UK • United States of America

Mars U Activity Manager

Employment type:  Full time

2 days/week at home

Core hours 11–3

Dog friendly

Job Description

Job Description:

As a member of the MGS Learning Learner Experience Team, the Activity Manager has overall responsibility for leading, facilitating, planning and executing learning projects as defined by the Learning Experience Manager. This role manages projects from ideation through post launch analysis.

This is a hybrid role that must be based out of one of the listed locations.

Key Responsibilities

  • Manages learning projects across all of Mars U.
  • Facilitates proactive development and coordination of cross multifunctional teams across Mars U required to achieve defined objectives for new learning experiences.
  • Effectively manages multiple projects at different stages of the lifecycle.
  • Coordinates the development of project timelines, identifies key decision points and ensures successful execution.
  • Manages the creation and presentation of project stage gate documents with Learner Experience Manager.
  • Directly and frequently communicates with cross-functional and cross-Mars U Team regarding project timing, status and risks.
  • Conducts risk assessments and provide updates that ensure activity team alignment for project objectives and critical success factors.
  • Conducts timely post launch assessments and ensures key learnings are shared and implemented for future projects.
  • Develops and champions the use of high-quality project management tools and techniques for managing learning projects.
  • Contributes to the facilitation and continuous improvement of the Mars U S&OP process

Context and Scope

  • Builds strong connections and partnerships across Mars U teams to ensure successful management and execution of learner experience projects – specifically Learning Operations team, Solutions Procurement managers and Learner Communications & Engagement Managers.
  • Partners closely with MGS Learning Service Management team to optimize the efficiency and effectiveness of project management processes and resourcing.
  • Creates close partnerships with Learner Communications & Engagement Managers to ensure alignment on upcoming deployments.

What can you expect from Mars?

  • Work with over 130,000 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.



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
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
Employees are very happy with their working location freedom
Employees are very happy with the flexibility in the hours they work
Employees are very happy with the benefits their company offers
Work-life balance
Employees feel that they can switch off quite easily from work
Role modelling
Employees feel that flexible working is part of the culture
Employees feel they have complete autonomy over getting their work done

Additional employee ratings
(these do not contribute to the FlexScore®)

Employees feel that the diversity is good and there are continued efforts to improve it
Employees feel that the culture supports equity and inclusivity well
Employees feel like it is a really great environment to work in
Employees feel very excited about and aligned with the company mission
Employees feel that their salary is good and matches the value they bring

Working at Mars UK

Company employees

4,000 In the UK

Gender diversity (male:female)


Office locations

London, Slough, Waltham, Castle Cary, Birstall, Plymouth

Hiring Countries




United Kingdom

United States

Awards & Achievements

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