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Careers at Waltham

Health, Safety, & Environment lead

Do you have in-depth knowledge of Health, Safety & Environment  legislation and a passion for Quality?

Due to an internal promotion we're looking for a health, safety & environment lead to join our team. 

You'll develop and deploy the Health Safety and Environmental strategies, and deliver continued improvement to site safety and environmental performance for the entire Waltham campus.

Find out more and apply here



You will

  • Accountable for the development and deployment of  HSE strategies for both sites on the Waltham campus.
  • ​​​​Responsible for the engagement and leadership of the management teams and relevant line managers on the HSE agenda including ensuring compliance with legislation, corporate and relevant standards
  • Accountable for the creation of a roadmap(s) to deliver continued improvement to the quality, safety and environmental performance.
  • Work through others by building strong and effective teams and advocates who will support and be ambassadors HSE

Laboratory Research Scientist - Working in Mass Spectrometry

Do you have experience working with FT-ICR-MS*?

In-house advanced mass spectrometry is our latest capability at Waltham. We're looking for someone to lead the successful implementation and advance the technical development of this lab.

You'll work in a team of up to 5, including including expert technical specialists in FT-ICR-MS, and analysts who prepare and run all the samples. The results produced in the mass spectometry lab and across the Waltham research and laboratory team will help generate insights that directly support product innovation, research and development for Mars Petcare. 

Find out more and apply here

* Fourier transform ion cyclotron resonance mass spectrometry

You will

  • Have technical leadership for the FT-MS lab, with an in-depth knowledge of the practical aspects and research application opportunities. 
  • Work closely with other technical experts to support development of relevant analytical methods.
  • Induct, train and supervise analysts in lab procedures and ways of working.
  • Ensure all Waltham quality, health, safety and environmental standards are implemented within the lab.
  • Be responsible for the accurate recording of all activity.
  • Provide rota'd out of hours support for the laboratory 
  • Have oversight and coordination of operational support of the lab, including management of third-party contractors responsible for maintenance and repair within the lab.

Data Systems Owner

Are you an expert data engineer, skilled in data modelling and management?

We’re looking for a Data Systems Owner to help drive more value from our Data Lake and data assets by delivering projects alongside our IT and data partners. You'll help ensure we have excellent data quality and a reliable and well managed data infrastructure that aid us in providing world-class science that backs our global Petcare brands

Find out more and apply here.

You will

  • Create and own multiple Data Lake data assets – including data marts and pipelines. 
  • Work with data subject matter experts, customers, and stakeholders across Mars to ensure the products meet their needs and maximise the value we get from our data assets.
  • Deliver complex systems projects ranging in size.
  • Manage the key data lake components of our bioinformatics and science data infrastructure to ensure suitable architecture, capacity, performance, and capabilities.

Senior Research Scientist - Biomarkers

Do you have experience in biological science research, in particular knowledge of emerging large-scale data-driven approaches?

This role will initiate, gain approval for, resource, manage and report internal and external research projects that are aligned and deliver against the strategic goals of the Mars Petcare healthcare science programme. Specifically, in the discovery and validation of genomic and other -omics biomarkers of disease and the application of these in the development of health monitoring tool and/or diagnostics and to evaluate the efficacy of interventions specifically relevant to companion animals.

Find out more here

You will:

  • Formulate, design and direct internal and external research projects, utilising both internal and external expertise. 
  • ​​​​Develop new genomic analysis and -omics methodologies and capabilities that advance of knowledge of health and disease.   
  • Provide appropriate critical analysis and communication of project results, information and business implications through reports, presentations and publications to a variety of audiences.
  • Define, negotiate and supervise appropriate resources for successful implementation of projects.
  • Maintain awareness of relevant scientific advances, identifying and implementing new technology, and conducting risk assessments.

Research Scientist

A rare opportunity has come up for someone to join our research team as a research scientist!

Do you have experience in designing and implementing research studies? Are you're looking to contribute to pet-friendly research?  Do you like the idea of working as part of a team that is key in delivering scientific advancements to Mars Petcare brands globally? If yes, this may be the role for you!

The job holder will deliver approved animal research studies in line with Mars ethical standards and the Waltham caring science approach. You'll be responsible for delivering technical and practical aspects of  studies, primarily be delivered in collaboration with partners across the Mars Veterinary Health business, as well as with other part of the Mars Petcare business, or external research institutes.

Find out more and apply here.

You will:

  • Manage, implement and deliver internal research studies, including supporting assessment techniques and data collection.
  • Design, produce and communicate research study protocols and generate support materials for research studies. 
  • Collate and run quality control of scientific data
  • Communicate study findings in verbal and written form to the relevant internal audiences. 
  • Develop and continuously improve laboratory or animal techniques in support of research studies, to include training personnel. 
  • Co-ordinate and direct research study teams of up to 20 people.

Veterinary Nurse Specialist

Are you a veterinary nurse with experience in general practice? Looking for something slightly different?

We have an amazing opportunity for nurses that want to join us in delivering on our purpose: A BETTER WORLD FOR PETS. We offer a stable work pattern, with no night or on call work, and with direct day to day contact with our pets, so you can keep your clinical skills up to date.

In this role, you will deliver and support the provision of veterinary care to our pet population. This underpins the effective and efficient delivery of the science programme at Waltham.

Apply here

Multiple roles available

You will:

  • Deliver routine and non-routine veterinary care for one or more pet units.
  • Triage veterinary and animal health related queries.
  • deliver routine veterinary related tasks. For example weighing of animals, adjusting dietary requirements and delivering preventative treatments such as vaccinations.
  • Collection of health and research data from our dogs and cats (e.g. bodyweights, oral health assessments).
  • Perform animal health checks.
  • Identify and act upon continuous improvement initiatives .
  • Support cat/dog breeding programmes.
  • Deliver veterinary treatments and responding to veterinary queries during core hours at weekends.

No role for you just yet?

Why not meet some of our WALTHAM experts here or discover the wide range of roles across Mars and ask an associate a question here.

At Mars, the world we want tomorrow is inclusive and diverse. No matter the visible or invisible differences, we have long been committed to fostering an environment where everyone has equal opportunity to reach their full potential. Read about our approach to I&D here.

Find out how our associates are living with purpose at home as well as at work here.


Find out more about life at Waltham and see posts about our vacancies by following our hashtag #CareersAtWaltham on LinkedIn

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