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Mars UK • CHN-Tianjin-Tianjin | China

PPI Engineer

Employment type:  Full time
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Job Description

Job Description:

Key Responsibilities:

  • Innovation & New Product Implementation

· Lead end‑to‑end deployment of new product and packaging innovations on site. · Execute R&D deployment strategies to drive production growth, product quality improvement, and manufacturing efficiency. · Ensure the full product portfolio is launched to all target markets with required performance and quality standards, and strictly comply with all R&D specifications.

  • Process Management & Line Trial Leadership

· Own and lead all production line trials; complete formal trial reports and provide end‑to‑end technical expertise to the operations team during the entire product implementation lifecycle. · Lead complex problem‑solving for process deviations, non‑conformances, and technical bottlenecks during new product scale‑up. · Validate production line and equipment process capability for new product and process rollout. · Strong plus: Experience in pet food dry kibble extrusion, with hands‑on knowledge of twin‑screw/single‑screw extruders, conditioning, drying, and coating processes. Ability to quickly establish trial protocols based on different formulations and expansion targets, optimizing key process parameters and equipment matching.

  • Operational Control & Change Management

· Establish formal operational control systems (including factory portfolio change management) for all new product launches. · Implement Statistical Process Control (SPC) and quality management systems to stabilise mass production after trial runs. · Manage manufacturing changes, control process risks, and ensure production compliance.

  • Cross‑functional Project Coordination & Knowledge Transfer

· Coordinate cross‑functional teams (Production, Quality, Maintenance, Supply Chain) to deliver deployment projects and drive execution efficiency. · Participate in the regional PPI platform; share best practices, manufacturing technologies, and lessons learned to achieve multi‑site harmonisation. · Act as the key on‑site technical contact for regional R&D and manufacturing networks. · Strong plus: Familiarity with raw material characteristics (cereals, meat meals, fats, etc.) in pet food extrusion, as well as extruder barrel temperature/pressure/screw speed profiles, particle size control, and kibble crispness adjustment. Capable of defining Standard Running Conditions (SRC) based on product formulation and sensory requirements.

  • Standardisation & Baseline Definition

· Develop manufacturing standards and define Standard Running Conditions (SRC) for all core production processes. · Formalise material, product, and packaging specifications; embed standard process baselines into daily production management. · Strong plus: Proven experience in commissioning and troubleshooting dry pet food extrusion lines, with familiarity with major equipment brands (e.g., Wenger, Bühler).

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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

Canada

China

Czechia

Denmark

Egypt

Estonia

Finland

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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