Mars UK • United Kingdom

Senior Packaging Developer

Employment type:  Full time

3–4 days/week at home

Core hours 11–3

Dog friendly

Job Description

Job Description:

We have an exciting opportunity within our Global Care & Treats Packaging team, based in the Global Innovation Centre in Birstall. This role is critical to support the delivery of our sustainability packaging goals for Pet Nutrition and Mars.

What are we looking for?

  • University Degree or equivalent in a technical, science, engineering or packaging/product design subject

  • Experience in the area of packaging development, sustainability, packaging engineering or similar.

  • Experience of FMCG and/or flexibles packaging supply base an advantage.

  • Filling Technologies knowledge (material/machine interaction & understanding) would be an advantage

  • Familiarity with the interaction between product and packaging (e.g. migration, barrier props) and testing

  • Fluency in English (verbally and written)

This role might be right for you if you are a Packaging Technologist in the retail sector looking to specialise in sustainability or a Packaging Engineer with expertise in flexibles.

What will your key responsibilities be?

In this role you will be:

  • Sharing your expertise on the latest packaging technology and material expertise.

  • Conducting material evaluations and maintaining trial and test records.

  • Demonstrating your understanding of relevant legal and technical implications of the plastics strategy and to manage their impact on the material development strategy and roadmap in close cooperation with the GIC packaging team

  • Assessing and executing measurements and methods (e.g. through life cycle assessment) to evaluate the sustainability footprint of current and future packaging solutions

  • Delivering material development programs in order to to meet our 2025 plastics strategy targets in close cooperation with the central and regional packaging sustainability teams, the other Global Innovation Centres and potentially other segments

  • Working closely with the packaging team, with global quality and food safety teams, global engineering, and the specialized contacts in departments e.g. Marketing, Commercial, Supply and Customer Marketing Insights/Customer Technical Insights.

  • Developing your own knowledge of the latest packaging technology in order to remain informed about the most up-to-date technical standards, e.g. visiting seminars and trade fairs and by keeping in close contact with suppliers.

  • Proactively managing Intellectual Property risks and opportunities.

  • Providing high quality formal and informal communication on progress of projects.

  • Effectively managing project risks and informing and influencing the project team.

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

4000 In the UK

Gender diversity (male:female)


Office locations

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

Hiring Countries

United Kingdom
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Awards & Achievements
Most flexible Retail & Ecommerce companies

Most flexible Retail & Ecommerce companies

Industry awards 2022