Facilities Mechanical Engineer

Job description

Site Name: UK - Hertfordshire - Stevenage

Posted Date: Mar 3 2026

Closing Date: 17th March 2026 (COB)

We manufacture and supply reliable, high-quality medicines and vaccines to meet patients' needs and drive our performance. Our network of 37 medicines and vaccines manufacturing sites delivered 1.7 billion packs of medicines and 409 million vaccine doses in 2024 to help make a positive impact on the health of millions of people. Our supply chain is not just core to our operations;

it's vital to bringing our innovations to patients as quickly, efficiently and effectively as possible. Technology is transforming how we manufacture medicines and vaccines, enabling us to increase the speed, quality and scale of product supply. We need the very best minds and capability to help us on our journey to make more complex products, harnessing the power of smart manufacturing technologies including robotics, digital solutions and artificial intelligence to deliver for patients.

You will provide mechanical engineering support for UK sites to keep facilities safe, compliant and reliable. You will work with operations, projects and external partners to deliver engineering, continuous improvement and capital work. We value practical problem solvers who communicate clearly and build strong relationships. You will have real growth opportunities, a chance to develop technical leadership, and the ability to contribute to our mission of uniting science, technology and talent to get ahead of disease together.

• Lead mechanical engineering and technical infrastructure work for building services such as HVAC, local exhaust ventilation and water systems.
• Support and deliver capital projects from design through commissioning, ensuring safety and quality standards are met.
• Develop and maintain preventive maintenance plans, asset records and technical documentation.
• Provide technical guidance to operations and contractors and act as a site technical authority for approved systems.
• Use operational data to drive continuous improvement and energy or sustainability initiatives aligned to site goals.
• Participate in site crisis management on a rota and support compliance audits and risk assessments.

• Degree in Mechanical Engineering or equivalent technical qualification, or proven equivalent experience.
• Practical experience in mechanical engineering within a manufacturing, research or regulated environment.
• Experience with building services systems such as HVAC, water systems, compressed air, local exhaust ventilation systems.
• Experience delivering or supporting capital projects, installation and commissioning.
• Strong understanding of health, safety and statutory compliance relevant to facilities engineering.
• Good stakeholder and contractor management skills with clear written and verbal communication.

• Working towards or holding professional registration (e.g., IMechE chartership) or equivalent.
• Experience with building management systems, control systems or automation used in facilities.
• Experience in energy management, decarbonisation projects or sustainability initiatives.
• Experience in regulated industries such as pharmaceutical, life sciences or healthcare.
• Project management training or certification and experience with project controls.
• Experience in developing team capability, mentoring engineers or leading small teams.

This role is based in the United Kingdom in Stevenage. The working model is site based with on-site presence required for engineering, commissioning and site operations. You will need to be available for site-based work and occasional out-of-hours support as part of a rota.

You will join a team where your engineering skills will matter. You will gain hands‑on experience with complex site systems, clear routes to grow technical and leadership capability, and support for professional development. We encourage applications from people with different backgrounds and experiences who share our commitment to inclusion. Apply now to take the next step in your mechanical engineering career with GSK.

Uniting science, technology and talent to get ahead of disease together.

GSK is a global biopharma company with a purpose to unite science, technology and talent to get ahead of disease together. We aim to positively impact the health of 2.5 billion people by the end of the decade, as a successful, growing company where people can thrive. We get ahead of disease by preventing and treating it with innovation in specialty medicines and vaccines.

We focus on four therapeutic areas: respiratory, immunology and inflammation; oncology; HIV; and infectious diseases to impact health at scale.

People and patients around the world count on the medicines and vaccines we make, so we're committed to creating an environment where our people can thrive and focus on what matters most. Our…