1–2 days/week at home

Core hours 11–3

Dog friendly

Job Description

Job Description:

Establish and develop an advanced mass spectrometry capability, based on an FT-ICR-MS platform, at the WALTHAM® Petcare Science Institute.

Deploy WALTHAM®'s advanced mass spectrometry capability to enhance the understanding of pet food composition in order to generate insights that directly support product innovation, research and development for global Petcare.

What are we looking for?

  • This role sits within the product performance research area at WALTHAM® reporting to James Marshall. The role holder will take the lead in developing and deploying our in-house advanced mass spectrometry capability. The role holder will collaborate closely with the research team, including the WALTHAM® laboratory, as well as external research partners to develop the capability and continue to advance the field. The WALTHAM® team supports global innovation and R&D across the whole of Mars Petcare. At Mars we take pride in developing ourselves and others as professionals, as team members and as leaders, and continuing professional development will be core to this role.

What will be your key responsibilities?

  • Responsible for development, optimization and validation of relevant analytical methods for robust, comprehensive characterization of complex samples and the identification of compounds of interest.

  • Initiate, gain approval for, resource, manage and report internal research projects aligned with WALTHAM®’s product performance research plan

    Supervise 0 - 3 Scientists and other support staff working in partnership with research and laboratory teams.

  • Communicate research outputs to internal stakeholders through scientific reports and presentations.

  • Maintain current awareness of relevant internal and external developments in the fields of advanced analytical chemistry and complex mixture characterization. Apply relevant developments to support WALTHAM® research in future directions.

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

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

4,000 In the UK

Gender diversity (male:female)


Office locations

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

Hiring Countries

United Kingdom
Awards & Achievements
Most flexible Retail & Ecommerce companies

Most flexible Retail & Ecommerce companies

Industry awards 2022