Process Engineer

ROCKWOOL Group; Pencoed; On-site; GBP 45,000 - 60,000; Full time

Benefits offered by this job

Competitive salary

30 days annual leave + Bank Holidays

Aviva Pension

Company bonus scheme

Free on-site parking

Electric car charging facilities

Life Assurance 4x annual salary

Westfield Health Cashback Healthcare &

Rewards Scheme

Job summary

ROCKWOOL UK is seeking a Process Engineer at our Pencoed site in South Wales. You will drive process improvements, resolve production challenges and support skills development across operations, reporting to the Process Manager to meet safety, efficiency, quality and cost targets in a fast-paced environment.

We offer a competitive salary, extensive leave, pension, bonus scheme, and on-site facilities including parking and EV charging, with a culture focused on safety and continuous improvement.

Qualifications

• Degree level in engineering or manufacturing
• Experience in the manufacturing industry
• Experience of lean, CI & operational excellence
• Strong analytical and data management skills
• Capability to work within a team

Responsibilities

• Promote safe working practices and support regulatory requirements
• Lead and participate in capex projects and commissioning activities
• Conduct root-cause investigations with cross-functional teams
• Plan and oversee structured trials for materials, products and processes
• Identify opportunities to reduce variable production costs and assist budgeting
• Update SOPs and train production teams on changes
• Support shutdowns, maintenance planning and OEE improvement initiatives

Skills

Lean Manufacturing

Data analysis

Teamwork

Operational excellence

Education

Degree in engineering/manufacturing

Job description

Job Title : Process Engineer

Location : Pencoed, South Wales

Ready to help build a better future for generations to come?

Join ROCKWOOL UK, part of the world’s leading manufacturer of sustainable stone wool insulation products, and play a vital role in building a better future. At our state‑of‑the‑art manufacturing facility in Pencoed, we transform volcanic rock into innovative, sustainable solutions that improve modern living and reduce environmental impact.

About the role :

We are looking for a talented Process Engineer to drive process enhancements, resolve production challenges, and support skills development across our operations. Reporting to the Process Manager, you will help ensure our manufacturing processes consistently achieve safety, efficiency, quality, and cost performance targets in a fast‑paced, collaborative environment.

What we offer :

• Competitive salary
• 30 days annual leave + Bank Holidays
• Aviva Pension
• Company bonus scheme
• Free on‑site parking
• Electric car charging facilities
• Life Assurance 4x annual salary
• Westfield Health Cashback Healthcare Scheme and Rewards Scheme

What you bring :

• Qualified to Degree level in engineering or manufacturing discipline
• Experienced in the manufacturing industry
• Previous experience of lean, CI & operational excellence
• Strong analytical and data management skills
• The capability to work within a team

What you will be doing :

• Contributing to the achievement of the factory’s safety, environmental, and sustainability targets by promoting safe working practices, meeting regulatory requirements, and supporting continuous improvement initiatives
• Contributing to successful completion of capex projects by specifying functional descriptions, being part of project teams and leading commissioning activities
• Leading detailed investigations into production and process issues, carrying out root cause analysis, involving cross‑functional teams, and delivering robust, lasting solutions
• Planning, coordinating, and overseeing structured trials for materials, products, and processes, following Management of Change procedures and collaborating closely with stakeholders to optimise efficiency, quality, and consistency
• Delivering measurable cost improvements by analysing Variable Production Costs (VPC), identifying opportunities for savings, and supporting the plant’s budgeting process with accurate, data‑led input
• Maintaining precise process settings, communicating operational changes effectively to stakeholders, updating standard operating procedures (SOPs) in a timely manner, and providing training to develop the skills and knowledge of production teams
• Playing a key role in factory shutdown and downtime planning by identifying critical cleaning, maintenance, and upgrade requirements, assisting with the successful commissioning of new equipment, and implementing initiatives to enhance Overall Equipment Effectiveness (OEE) and productivity

About ROCKWOOL

ROCKWOOL harnesses the natural power of stone to create innovative insulation and building solutions that make life safer, more sustainable, and more comfortable. Founded in Denmark in 1937, we are the world leader in stone wool solutions, with 51 manufacturing facilities in over 40 countries and more than 12,000 employees. Our mission is to use one of nature’s most abundant resources to help people and communities thrive while protecting the planet for future generations.

Our Culture

We are proud of our inclusive, diverse workplace, representing 79 nationalities worldwide. Everyone is valued, respected, and heard, with equal opportunities at the heart of our approach.

Life at ROCKWOOL is guided by The ROCKWOOL Way – our shared values of ambition, responsibility, integrity, and efficiency, which shape how we work, innovate, and collaborate.

Interested?

If you share our passion for making a positive difference, join us and help improve modern living conditions for millions of people worldwide.

Closing Date : 6th September 2026