Senior Facilities Engineer

ALTEN is a global engineering and technology consultancy operating across over 35 countries worldwide. We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, Automotive, Energy, Rail, IT and many more to deliver innovative engineering solutions that drive technological advancement & support sustainable transformation.

Our teams of passionate and agile engineers work on cutting-edge projects that shape the future of technology and sustainability. At ALTEN, we empower talented engineers to innovate, solve complex challenges, and deliver impactful solutions that build tomorrow’s world—today.

Join us and start building tomorrow’s world today!

As a Senior Facilities Engineer, you will join our Hertfordshire team to support our activities within the pharmaceutical manufacturing and research sector.

You will play a key role in ensuring the reliable, compliant, and efficient operation of site-wide building services, utilities, and critical infrastructure across a complex pharmaceutical manufacturing, research, and commercial facility. Reporting to the Engineering Manager and supporting day-to-day operations, you will lead engineering activities, supervise contractors and engineers, and drive continuous improvement initiatives to maintain the highest standards of safety, quality, and regulatory compliance.

• Location:
  Hertfordshire
• Experience Level: Senior (5+ years experience)

Key Responsibilities:

• Support the supervision and coordination of engineering teams and specialist contractors delivering planned, reactive, and corrective maintenance activities
• Act as a primary technical contact for HVAC systems and business-critical building infrastructure
• Conduct equipment inspections and audits, identifying improvement opportunities and implementing corrective actions
• Review BMS and HVAC control systems to optimise plant performance and identify energy-saving opportunities
• Monitor equipment reliability and maintenance performance to ensure compliance with maintenance schedules and regulatory requirements
• Act as an Approved Person (Electrical HV/LV and/or Mechanical Pressure Systems) where authorised
• Support fault-finding, root cause investigations, and issue resolution activities
• Manage and supervise small works and engineering projects across the facility
• Coordinate maintenance shutdowns, equipment upgrades, and installation activities with key business stakeholders
• Review and approve maintenance procedures, work permits, and engineering documentation
• Support the development and delivery of training for engineering personnel
• Manage contractors and vendors, ensuring compliance with site policies, safety standards, and GMP requirements
• Prepare reports and presentations detailing equipment performance, maintenance activities, incidents, and resource utilisation
• Ensure all engineering records and documentation comply with statutory, Health & Safety, and GxP requirements
• Support continuous improvement initiatives across engineering operations
• Assess and recommend critical spare parts requirements to support asset reliability
• Participate in the site on-call rota (approximately 1 week in
  6)

Required Skills:

• Proven experience leading or supervising engineering teams in a maintenance environment
• Strong knowledge of mechanical and electrical building services and utilities
• Experience working with HVAC systems and critical infrastructure
• Ability to interpret technical drawings, schematics, and engineering documentation
• Experience updating and reviewing risk assessments and safe systems of work
• Knowledge of contractor management and maintenance governance processes
• Experience using Computerised Maintenance Management Systems (CMMS)
• Strong fault-finding and…