Project Manager

This role is INTERNAL ONLY and at present we are not accepting external applications. If you are external and apply, your application will not be considered at this time. We are seeking an experienced and accomplished Project Manager to join our UK&I Project team, playing a pivotal role in delivering a complex Critical Security Infrastructure (CSI) programme for a government client across a UK-wide portfolio of approximately 800 sites. This is a high-profile role requiring strong leadership, governance, and delivery capability across a diverse, multi-site environment., We are seeking a professional who can act as the central point of coordination for a multi-faceted programme of works, ensuring alignment with organisational and client objectives, regulatory compliance, and the delivery of tangible business value. The role is primarily focused on the CSI Project, with additional support to business-as-usual activities as required, and involves frequent travel.,

• Lead the end-to-end delivery of a large-scale, multi-site CSI programme, ensuring projects are delivered on time, within budget, and to agreed quality standards.
• Oversee enabling works, security installations, fire and life safety systems, and fabric/fit-out activities across multiple locations.
• Act as the primary liaison between client, account leadership, internal teams, and supply partners, managing stakeholder expectations and escalations.
• Define project scope, translate programme objectives into actionable delivery plans, and manage interdependencies across projects.
• Ensure full compliance with CDM regulations, health and safety standards, and relevant legislative and governance requirements.
• Manage project budgets exceeding £1m, including cost forecasting, financial controls, and reporting to senior leadership.
• Identify, assess, and mitigate risks, leading audits, reviews, and quality assurance activities to ensure secure and compliant delivery.
• Lead, mentor, and develop cross-functional project teams, fostering a culture of accountability, performance, and continuous improvement.
  
  Proven experience delivering complex, multi-site projects involving enabling works, high-security infrastructure, and fit-outs.
• Strong knowledge of electronic and physical security systems, including access control, CCTV, perimeter security, and Safe 03 / Safe 04 criteria.
• Ability to interpret schematic and construction drawings with a focus on fire, security, and life safety systems.
• Experienced in Tier 3 report writing, proposal writing, and evaluation.
• Demonstrated capability in operational project management, stakeholder engagement, and programme-level governance.
• Conversant with NEC4 contracts and strong commercial awareness.
• Proficient in the use of project management tools and systems., PMP certification.
• SMSTS certification.
• CSCS card.
• Relevant certifications or training in security installations.
• UK driving licence with flexibility to travel nationwide.
  
  ISS is a world-leading workplace and facility management company, connecting people and places to make the world work better. Working with customers day by day, side by side, we understand every aspect of the user experience.
Through a unique combination of intelligent solutions, high standards and people who care, to help our customers achieve their purpose, whether it's hospitals healing patients, businesses producing the next great innovation, or airports bringing passengers home to their families. ISS is committed to doing business the right way, taking its corporate responsibility very seriously. Our passion is people. We offer you a challenging and exciting career in an organisation with people at its heart. In ISS, everyone has the opportunity to develop, grow and make a difference. #Becomewhoyouwant, #Bepartofsomethingbigger, #aplacetobeyou, #facilitiesmanagement ISS is proud to be a diverse and inclusive employer. ISS welcomes all applicants regardless of age, disability, gender identity or gender reassignment, marital or civil partnership status, pregnancy or maternity, race (which includes race, colour, nationality, ethnic or national origin and caste), religion or belief, sex, sexual orientation or educational background. We are proud to be a Gold Employer Recognition Scheme (ERS) award holder and a signatory of the Armed Forces Covenant, recognising our commitment to supporting veterans, reservists, and military families. Through our Joint Forces Programme, we provide mentoring and support to members of the Armed Forces community and their spouses as they transition into civilian careers. We are a Disability Confident Committed (Level 2) employer, proudly supporting and promoting inclusive hiring practices in line with the UK government's Disability Confident scheme. Our passion for inclusivity and diversity makes ISS a more creative, productive and happy place to work. If you have any further queries regarding this role, please contact the Resourcing Team by emailing Please click on the following link for more information on this role: If you are interested in learning about other opportunities at ISS, please join our Talent community by clicking on the following link