1–2 days/week at home

Core hours 11–3

Dog friendly

Job Description

Job Description:

Are you passionate about advancing scientific discoveries that make a positive impact on the well-being of pets worldwide? Mars, a global leader in pet care, is seeking a skilled and dedicated Chemistry Laboratory Scientist to join our Waltham laboratory team.

As a Chemistry Laboratory Scientist at Mars, you will play a crucial role in contributing to groundbreaking research projects that shape the future of a #betterworldforpets.

Key responsibilities:

  • Performing a variety of laboratory methodologies and processes with precision to meet research project requirements.
  • Using scientific knowledge to provide valuable input during project discussions, collaborating with Senior Research Scientists and Laboratory Research Scientists.
  • Driving validation of new methodologies, contributing to development, refinement, and troubleshooting of relevant processes.
  • Conducting method development and troubleshooting expertise, specializing in LCMS or GCMS.
  • Maintaining key laboratory equipment for optimal operation and carrying out preventive maintenance.
  • Providing high-quality training and support to fellow laboratory scientists on methodologies and laboratory practices.
  • Communicating research data effectively to internal stakeholders through written communication or presentations.
  • Ensuring regular communication with the Principle Investigator on project progress.
  • Maintaining a detailed electronic laboratory notebook in adherence to WALTHAM guidelines.
  • Collaborating with the laboratory team to drive efficiency and optimal working practices.
  • Contributing to written reports and scientific publications to support the Principle Investigator.
  • Adhering to QMP and HS&E requirements, supporting the implementation and maintenance of quality and safety initiatives.

What We Are Looking For:

  • Hands-on experience with GCMS, LCMS, and various extraction techniques.
  • Familiarity with aromatic flavour compounds and GC-O analysis is desirable.
  • Previous laboratory experience, with research environment exposure being highly desirable.
  • Excellent communication skills with the ability to convey scientific messages accurately and clearly.
  • Effective time management skills, navigating obstacles to ensure project delivery.
  • Method development and validation experience is desirable.
  • Familiarity with data handling software (e.g., Python or R) is a plus.

What You Can Expect from Mars:

  • Work with over 130,000 diverse and talented associates, all guided by the Five Principles.
  • Join a purpose-driven company committed to building a better world for pets.
  • Best-in-class learning and development support from day one, including access to Mars University.
  • Industry-competitive salary and benefits package, including company bonuses.

If you're ready to make a difference creating a #betterworldforpets and be part of a dynamic, purpose-driven team, apply now to join Mars Waltham Laboratory as a Chemistry Laboratory Scientist. Together, let's create a better world for pets! 🐾✨


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

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