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Mars UK • USA-Pennsylvania-Elizabethtown | USA-Texas-Waco | USA-New Jersey-Hackettstown | United States of America

Principal Project Engineer

Employment type:  Full time
Salary:  $134,400 – $184,800 per annum
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Job Description

Job Description:

Principal Project Engineer

This Principal Project Engineer will be a Project Manager responsible for all aspects of planning and executing projects/programs from ideation to project closure. The person in this role will potentially lead projects in process areas, buildings and infrastructure, general manufacturing processes, and packaging systems depending on business needs. The role owns overall leadership of major capital projects through the Mars Snacking Engineering Execution Standard for executional excellence in project delivery. These roles will either be based out of Elizabethtown, PA, Hackettstown, NJ, Waco, TX, or require significant travel to all of our other major sites across North America.

What are we looking for?

  • Bachelor’s of Science in engineering; an advanced degree in engineering, MBA or PMP certification considered a plus.

  • Minimum of 10 years of experience in an comparable technical position - food, beverage, pharmaceutical or related industry preferable.

  • In-Depth understanding of project management principals and general knowledge of engineering disciplines: Building, Infrastructure, Civil, Utilities, Process, Packaging, Electrical, Construction or Computer Service.

  • In-depth understanding of functional engineering area of expertise.

  • Action Oriented, Interpersonal Savvy, Communication Skills, Planning, Self-Development, Dealing with Ambiguity, Creativity, Innovation Management.

  • Developing and executing projects.

  • Managing direct reports or project teams.

  • 20-60% travel requirement.

What will your key responsibilities be?

  • Build and lead high-performing teams while fostering a safe, trusting, and results-driven environment.

  • Provide engineering leadership and direction to plan, scope, and execute projects in collaboration with cross-functional stakeholders.

  • Apply standardized project management processes to manage scope, budget, schedule, risks, and stakeholder engagement.

  • Drive technical excellence, innovation, and sound engineering decisions to ensure competitive, feasible, and efficient project outcomes.

  • Ensure compliance with safety, environmental, and engineering standards while promoting knowledge sharing and consistent ways of working.

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.

  • A strong focus on 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.

The base pay range for this position at commencement of employment is between the range listed below, however, base pay offered may vary depending on multiple individualized factors, including but not limited to job-related knowledge, skills, and experience. The total compensation package for this position will include variable pay, medical and dental benefits, participation in 401k plan, and paid time off benefits. Details of participation in these benefit plans will be provided if an applicant receives an offer of employment.

The pay range shown is applicable to all US locations listed within the job posting:USD 134,400.00 - USD 184,800.00

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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
Neonatal 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

China

Czechia

Denmark

Egypt

France

Germany

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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