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Mars UK • USA-Tennessee-Franklin | United States of America

Sr. Engineer, Packaging Development

Employment type:  Full time
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Job Description

Job Description:

The Senior Packaging Engineer leads the development and deployment of innovation, sustainability, and productivity initiatives across Mars Petcare North America’s packaging portfolio. Operating in a pet-friendly, collaborative environment, this role provides cross-functional leadership to support existing products, drive new package development, and standardize processes across pilot and full-scale manufacturing sites.

Success in this role requires connecting innovative workstreams with high-quality, consistent manufacturing outcomes to deliver packaging solutions that meet evolving pet parent needs. The Senior Packaging Engineer is responsible for leading large, business-critical projects with regional or brand-wide impact, ensuring alignment from concept through commercialization.

This role provides strong technical expertise and strategic insight, while owning the management and implementation of key packaging processes, standards, and continuous improvement initiatives. The Senior Packaging Engineer plays a critical role in driving operational excellence, influencing stakeholders, and advancing scalable, sustainable packaging solutions across the portfolio.

What are we looking for?

Minimum Requirements

  • Bachelor’s degree in in Packaging, Engineering, Chemistry, Food Science, a related technical field or equivalent

  • 5-7+ years’ experience working on packaging projects and technology development

  • Demonstrated experience with retort, cans, and corrugated shipping containers

  • Strong understanding of machinery and scale-up risks

  • Willingness to travel up to 30%

Preferred Qualifications

  • Master’s degree in in Packaging, Engineering, Chemistry, Food Science, or a related technical field

What will be your key responsibilities?

  • Technical Leadership: Lead and manage high-impact, complex packaging development projects (e.g., retort packaging, cans, pouches, bags, etc.) spanning across major portfolios.

  • Advanced Specifications: Develop complex specifications for multi-site and cross-functional projects, ensuring packaging robustness across the entire value chain.

  • Innovation & Scale-Up: Translate technology from virtual/working proof-of-principle models to full-scale working machinery in partnership with third-party builders and global teams.

  • Risk & Opportunity Management: Proactively identify, assess, and mitigate risks of regional or site-level impact. Cascade coaching on risk management tools to junior associates.

  • Associate Development: Mentor, coach, and support the technical development of junior Packaging Engineers and Technologists within the team.

What can you expect from Mars?

  • Work with 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.

#LI-Onsite

#LI-AM1

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Company benefits

Open to part-time employees
Open to job sharing
Open to compressed hours
Sabbaticals
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
Shared parental leave
Adoption leave
Family health insurance
Pregnancy support
Neo-natal leave
Faith rooms
Meditation space
Dog friendly office
Dog friendly co-working space
Annual bonus
Employee discounts
Cinema discounts
Referral bonus
Joining bonus
Cycle to work scheme
Electric Car Salary Sacrifice
Enhanced pension match/contribution
Theme park discounts
Lunch and learns
In house training
Learning license
Studying sabbaticals
Open to part time work for some roles

Working at Mars UK

Company employees:

4,000 In the UK

Gender diversity (m:f):

57:43

Hiring in countries

Argentina

Australia

Austria

Belgium

Brazil

Bulgaria

Canada

Chile

China

Czechia

Denmark

Egypt

France

Awards & Accreditations

1st - Most Family Friendly Company

1st - Most Family Friendly Company

Flexa awards 2026
3rd - Best Workplace Benefits

3rd - Best Workplace Benefits

Flexa awards 2026
Most loved - Large companies

Top 5 - Most loved - Large companies

Flexa awards 2026
Best Work-Life Balance

Top 10 - Best Work-Life Balance

Flexa awards 2026
1st - Most Family Friendly Company

1st - Most Family Friendly Company

Flexa awards 2025
2nd – Pet Friendly

2nd – Pet Friendly

Flexa awards 2025
Most Flexible Company

Top 5 - Most Flexible Company

Flexa awards 2025
Most Inclusive Company

Top 5 - Most Inclusive Company

Flexa awards 2025
Best Work-Life Balance

Top 10 - Best Work-Life Balance

Flexa awards 2025
Best Career Progression

Top 10 - Best Career Progression

Flexa awards 2025
Best Workplace Culture

Best Workplace Culture

Flexa awards 2025
Best Workplace Benefits

Best Workplace Benefits

Flexa awards 2025
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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