Mars is hiring an on-site Health, Safety & Environment (HSE) Manager for its Plymouth manufacturing site to lead the site HSE strategy and drive a step-change in safety and environmental culture. This is a leadership-heavy role on the Site Leadership Team, focused on influencing behaviours, governance, risk management and continuous improvement. Standout perks include a £63,000–£74,000 salary plus annual bonus, benefits and car allowance.
- Annual bonus and benefits package
- Car allowance included
- Mars University learning from day one
Job Description
Health, Safety & Environment (HSE) Manager
Location
Plymouth, UK, with full-time on-siteSalary
£63,000 - £74,000(depending on knowledge & experience), annual bonus, benefits, car allowanceLead the Cultural Shift. Protect Our People. Shape the Future.
At Mars, safety is not a priority — it is a value. And we firmly believe that every accident is preventable.
We are looking for an inspiring Health, Safety & Environment Manager to join our Plymouth leadership team and lead a step-change in how safety and environmental excellence are embedded into our culture. This is not just a technical HSE role - it is a people leadership role focused on influencing mindsets, driving ownership, and ensuring safety is lived every day by every Associate.
As a key member of the Site Leadership Team, you will shape and deliver the site’s HSE strategy, champion Mars Supply Excellence (MSE) Safety Pillar deployment, and build a culture where speaking up, accountability, and proactive risk management are the norm.
What would be your key responsibilities?Cultural Leadership & Engagement:
Lead a visible cultural shift aligned with the belief that every accident is preventable
Coach and challenge leaders at all levels to role model the right safety behaviours
Create an engaging HSE culture that energises Associates and strengthens accountability
Partner with operations, engineering and technical teams to embed safety into daily routines
Strategy & Governance:
Develop and deploy the site HSE strategy and roadmap aligned with corporate and regulatory standards
Own and continuously improve the site's Integrated Occupational Health, Safety & Environment Management System
Maintain compliance with ISO45001 and ISO14001:2015
Lead the Mars Supply Excellence Safety Pillar at the site level
Risk Management & Assurance:
Define, coordinate and maintain HSE risk assessments and emergency procedures
Ensure robust serious incident investigations and sustainable corrective actions
Lead site audit programmes and ensure timely closure of actions
Act as primary contact for external advisory bodies, regulators, and insurers
Capability Building & Sustainability:
Deliver training and coaching that strengthens HSE knowledge and ownership across the site
Analyse and communicate HSE data and trends to drive proactive improvement
Drive continuous improvement initiatives that enhance safety and environmental performance
Lead site security policy and asset conservation improvements
A People-First Leader:
Proven ability to inspire, coach and influence in a manufacturing environment
Strong communication skills with the confidence to challenge constructively
Collaborative approach - able to work through others and build strong relationships at all levels
Demonstrated ability to drive behavioural change, not just process compliance
Technical Expertise:
Degree, HND or HNC in Science, Mechanical or Electrical Engineering (or equivalent)
NEBOSH Certificate/Diploma (essential); IEMA or MSc/PGC in Occupational Health & Safety desirable
Strong knowledge of UK and European HSE legislation
Experience maintaining or leading safety/environmental management systems in manufacturing
Results-Driven & Strategic:
Logical, independent thinker who can prioritise effectively
Track record of delivering results through teams
Comfortable balancing strategic direction with operational execution
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 a company bonus
Mars is committed to providing access, equal opportunity, and reasonable adjustments for individuals with disabilities, long-term health conditions, or who are neurodiverse during the application and recruitment process. To request reasonable adjustments, complete our Reasonable Adjustment Request Form here
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