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Assembly Operator
Gloucestershire
Job Description:
Castle Cary
£29,400- £31,200 (including shift allowance, DOE)
+ Performance Bonus & Exceptional Benefits
37 Hours per week - Mon-Fri - Weekly rotating shifts
Why Join Us?
We care about the world and your future. Mars offers competitive compensation and benefits along with some great perks, like fun freebies and best-in-class development. As a Mars Associate, you have our ongoing commitment to your growth and development as you work across our world-famous brands. The world we want tomorrow starts with how we do business today, and we're here to support you every step of the way.
The Role
This is a hands-on role ensuring raw materials and machinery are running smoothly to keep our production process efficient and safe. You'll play a key part in quality, safety, and output while working across different shifts. Full training is provided
Shift Pattern Mon -Fri 37.5 Hours:
and then repeat.
What's in it for you?
What We're Looking For
Key Responsibilities
What You Can Expect from Mars

Castle Cary
£29,400- £31,200 (including shift allowance, DOE)
+ Performance Bonus & Exceptional Benefits
37 Hours per week - Mon-Fri - Weekly rotating shifts
Why Join Us?
We care about the world and your future. Mars offers competitive compensation and benefits along with some great perks, like fun freebies and best-in-class development. As a Mars Associate, you have our ongoing commitment to your growth and development as you work across our world-famous brands. The world we want tomorrow starts with how we do business today, and we're here to support you every step of the way.
The Role
This is a hands-on role ensuring raw materials and machinery are running smoothly to keep our production process efficient and safe. You'll play a key part in quality, safety, and output while working across different shifts. Full training is provided
Shift Pattern Mon -Fri 37.5 Hours:
- Week 1: 6am-2pm
- Week 2: 2pm-10pm
- Week 3: 10pm-6am
and then repeat.
What's in it for you?
- Career growth opportunities with structured development & Mars University
- Private healthcare + equal parental leave
- Generous pension (up to 9% contribution)
- Life assurance (4x salary)
- EV salary sacrifice scheme
- Gym membership & wellbeing support
- Annual leave starting at 24 days, rising to 32 with service
- Free perks on site: parking, Lavazza coffee, tea, fruit twice a week, and access to our employee shop
What We're Looking For
- IT skills: Confident using Outlook, Word & Excel
- Transport: Full driving licence + own transport
- Personal skills: Self-motivated, detail-oriented, organised, and able to manage time effectively
- Health & Safety awareness: Strong understanding of H&S and quality standards
- Additional Strengths: Willing to take a hands on approach and committed to learning.
Key Responsibilities
- Operate & monitor machinery: Ensure efficient production runs and quality outputs
- Handle materials: Prepare, load, and safely store raw materials
- Record keeping: Maintain accurate production records and reports
- Safety first: Follow all safety procedures and help maintain a safe workplace
What You Can Expect from Mars
- Work alongside 130,000+ Associates worldwide guided by our Five Principles
- Be part of a purpose-driven company shaping "the world we want tomorrow"
- Access world-class training & development from day one
- Join a company with an industry-leading salary and benefits package
Salary: Annual +
Hours Per Week: Full Time

