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Mars UK • AUS-New South Wales-Wyong | Australia

Reliability Manager

Employment type:  Full time
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Job Description

Job Description:

Mars: Where your Tomorrow Starts Today!

Mars is a family-owned business that has been making products for people and their pets for more than 100 years. We’re behind some of the best loved brands in the world including MARS®, SNICKERS®, EXTRA®, ECLIPSE®, PEDIGREE®, WHISKAS®, DOLMIO®, BEN’S ORIGINAL ® MASTERFOODS ® and ROYAL CANIN® we are dedicated to making a positive impact on people and the planet.

Join us in building a sustainable future where people, communities, and the planet can truly thrive.


About the role: This role will be working for our Mars Food Nutrition segment, where we bring people together through flavour.

As our Reliability Manager, you will hold the keys to our site's operational success. Taking overall ownership of the maintenance group, you will shape the strategic direction, champion a proactive maintenance culture, and steer the maintenance budget. You aren't just managing upkeep; you are a key strategic partner. Sitting on the Plant Management Team, you will collaborate closely with Production Managers to drive continuous improvement, minimize equipment downtime, and keep our world-class plant running seamlessly.

What you’ll do:

  • Provide direct leadership and line management to the maintenance team. You will champion a high-performance culture, focusing on skill development, knowledge management, and targeted technical training.

  • Lead the development, deployment, and continuous improvement of the site-wide maintenance strategy to maximize asset lifecycle and plant reliability.

  • Act as the dedicated owner of the site maintenance budget and manage the stores inventory budget to ensure optimal parts availability.

  • Rigorously analyse key performance indicators—including maintenance spend and reliability metrics.

  • Oversee and deliver key engineering and maintenance projects specifically focused on elevating overall plant reliability and reducing equipment downtime.

Your unique ingredients:

  • A tertiary qualification in Engineering (Mechanical, Electrical, or similar) OR a relevant trade qualification with extensive leadership experience.

  • Demonstrated experience leading teams in a manufacturing or production environment.

  • Familiarity with Computerized Maintenance Management Systems (CMMS) or ERP platforms (such as SAP).

  • Certified Maintenance & Reliability Professional (CMRP) or equivalent continuous improvement certifications (Lean, Six Sigma) are highly regarded.

Why you’ll love working for Mars:

  • Purpose: Help craft beloved brands with a legacy of over 100 years of local manufacturing making products that people and pets will love all while helping to build a more sustainable future.

  • People: A culture that values your contributions, fosters leadership, and recognises the impact you make. Your work truly matters here.

  • Development: Shape your career with personalised development and real opportunities to grow from day one.

  • Enjoy a team and business environment that is invested in helping you manage and grow your energy for work and life.

  • Ongoing training and career development.

  • A supportive, inclusive team culture where your ideas are valued.

  • Health and wellbeing programs – walking track and gym, Flu vaccinations, fitness passport memberships.

  • Enjoy discount staff sales on products

  • Onsite subsidised canteen and free parking.

Mars is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, colour, 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.

We know everyone’s needs are different, and we’re committed to making our application process accessible and supportive for all candidates. If you require any adjustments along the way, simply let us know in your application form. We’ll work with you to understand what will help you feel comfortable and supported.

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Working at Mars UK

Hybrid

Core hours 11–3

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
Menopause support
On-site gym
On-site barista
Secure on-site parking
On-site catering
Private booths
On-site wellness room
Collaboration spaces

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
Flex spring

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Company employees:

4,000 In the UK

Gender diversity (m:f):

57:43

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