Site Supervisor

Mitie Group plc.; Greater London; On-site; GBP 60,000 - 80,000; Full time

Benefits offered by this job

Working away allowance

Annual appraisal

Annual salary review

Long service awards

Childcare vouchers

Share incentive plan

Private medical cover

Life cover

Employee assistance programme

Pension scheme

33 days holiday

Company vehicle

Laptop/iPad/iPhone and ICT equipment

Job summary

Mitie Group plc. invites applications for a Technical Supervisor role within its security and access control systems team. You will oversee site activities, coordinate systems integration, and lead commissioning and SAT activities for major utility clients across the UK.

Travel UK-wide is required; a full driving licence is mandatory. The role includes training delivery, documentation, and ongoing professional development within a growing team.

Qualifications

• Experience in supervision or commissioning roles.
• Knowledge of SAT and client handover processes.
• Proven problem-solving and communication skills.
• Valid UK driving licence.

Responsibilities

• Provide technical oversight across all phases of site activity.
• Lead integration of systems including hardware, software, and network components.
• Manage and execute commissioning activities to meet design requirements.
• Plan and conduct SAT in collaboration with clients and project teams.
• Deliver client training and ensure operational understanding.
• Support Site Manager in coordinating resources and handling issues.
• Maintain detailed technical documentation and SAT records.
• Ensure compliance with safety, environmental and quality standards.
• Liaise with contractors, engineers and clients for smooth delivery.
• Identify and escalate technical risks or delays.

Skills

Tech supervision

Systems integration

SAT / testing

Client liaison

Documentation

Cyber-physical systems

Tools

CAD

Technical software

Job description

This is a fantastic opportunity to join a successful security company who specialise in Security / Access Control Systems to some of the largest Utility companies across the UK as part of the National Grid Technology Framework, to join as an ambitious Technical Supervisor and help to develop the business during an exciting phase of growth. The Senior Project Manager will be responsible for the planning, coordination and execution of projects in line with agreed timescales.

UK Travel is a requirement of the role, so a full driving licence is mandatory.

Roles & Responsibilities

• Provide technical oversight and input across all phases of site activity
• Lead the integration of systems including hardware, software, and network components
• Manage and execute commissioning activities, ensuring systems meet design and operational requirements
• Plan and conduct Site Acceptance Testing (SAT) in collaboration with clients and project teams
• Deliver client training on installed systems, ensuring operational understanding and compliance
• Support the Site Manager in coordinating technical resources and resolving integration issues
• Maintain detailed technical documentation, including commissioning reports and SAT records
• Ensure compliance with safety, environmental, and quality standards
• Liaise with contractors, engineers, and clients to ensure smooth technical delivery
• Identify and escape technical risks or delays to the Site Manager

Essential Competencies

• Proven experience in technical supervision, systems integration, or commissioning roles
• Strong understanding of cyber-physical systems and infrastructure
• Familiarity with site acceptance testing (SAT) and client handover processes
• Excellent troubleshooting and problem-solving skills
• Strong communication and client-facing abilities
• Ability to work collaboratively with engineering and site teams
• Proficiency in technical documentation and reporting
• CAD and other technical software knowledge desirable
• Valid driver's license

As well as a competitive salary and company vehicle, you will be provided with a laptop and mobile, as well as:

• Working away allowance
• Annual Appraisal
• Annual salary review
• Long Service Awards – Starting at 1 year
• Childcare Vouchers
• Share Incentive Plan
• 24 hour Virtual GP
• Private Medical Cover
• Life Cover
• Employee Assistance Programme
• Workplace pension scheme
• 33 days holiday, including statutory Bank Holidays
• Quality accommodation
• Company vehicle
• Plant and specialist equipment is provided, with exception to hand tools
• Laptop, iPad, iPhone, and any required ICT equipment for the role

Ongoing training and personal development via the Learning Hub