Mars UK • United Kingdom

Principal Scientist Chocolate Product Science

Employment type:  Full time

1–2 days/week at home

Core hours 11–3

Dog friendly

Job Description

Job Description:

This role is part of Global R&D and is based in Slough.

The role serves to drive Growth, Efficiency and Quality acting as a recognized technical leader, interacting internally with the Regions and the wider Global community, across functions, as well as externally.

The candidate is responsible for owning and developing subject matter expertise in Chocolate Science, influencing the direction of programs, providing thought leadership, technical expertise, strategic direction and program management as needed.

The candidate also champions the global transfer of chocolate competencies through training programs, community of practice, consultancy, technical mentoring and knowledge capture to strengthen technical skills at all levels in the organization.

What are we looking for?

  • M.S or PhD degree in Food Science, Food or Chem. Engr., Biochemical or equivalent preferred.
    In lieu of PhD or MS, a BS degree with extensive experience in food or applicable industry is acceptable.

  • In-depth knowledge of chocolate-specific interactions and processes. Recognized and acknowledged chocolate expert within the global community.

  • Experience in building collaborative relationships between internal and external partners in different geographic locations/regions, and managing and influencing stakeholders

  • Experience in effectively communicating and solving conflict through virtual and face-to-face interactions

  • Proven in documenting, organizing and summarising technical results through verbal and written communication.

  • Travel to Global Mars sites and vendors required up to 30%

  • Available by video call outside normal working hours for communication with other Global sites.

What will be your key responsibilities?

  • Act as a technical subject matter expert in Chocolate Science and influence the direction of programs through own knowledge and expertise

  • Champion the global transfer of chocolate competencies through educational programs, a community of practice, consultancy, technical mentoring and knowledge capture to nurture a global community of experts and upskill the organization across a range of levels and functions

  • Identify, develop and execute global chocolate technology programs as a technical leader that provides thought leadership, technical expertise, strategic direction, and program management as needed

  • Develop, drive and deploy technical strategy, champion long-term technology development thinking, identify needs and formulate proposals to address gaps

  • Lead the design and development new and/or improved chocolates, raw materials, processes, technical solutions from benchtop through pilot plant to full-scale production, demonstrating Quality of Science and applying technical rigor.

What can you expect from Mars?

  • Work with over 130,000 like-minded 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 a 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

The FlexScore® is the result of a rigorous 2-step verification of a company’s flexibility

First we assess the flexibility options Mars UK provides and then we anonymously survey a statistically significant proportion of their employees to make sure Mars UK is as flexible as they say they are. Our assessment is based on the six key elements of flexibility: location, hours, autonomy, benefits, role modelling and work-life balance.

We ask the hard questions so you don’t have to.

Working at Mars UK

Company employees

4000 In the UK

Gender diversity (male:female)


Office locations

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