Project Manager - Penstock Replacement

Glenfield Invicta is a UK-based engineering company that specialises in water flow control solutions, particularly for critical national infrastructure and are part of the AVK Group, a global leader in water control systems and valve technology. About the role: We are looking for an experienced and driven Project Manager to head up a major infrastructure project at Portsmouth Naval Base, managing the replacement of penstocks. This is a high-profile, long-term project expected to span 2–3 years with a large total value to our business. It’s a unique opportunity to lead a strategically significant scheme in a historic and operationally critical setting. As the dedicated on-site lead, you\’ll oversee all aspects of project execution from planning and procurement to handover ensuring work is delivered safely on time, and within budget. You\’ll also play a pivotal role in building and leading a new on-site team, including five of our own Site Technicians, while managing a range of specialist subcontractors across demolition, civils, electrical, scaffolding, craneage, and structural steelwork. Candidates must be eligible to obtain Security Clearance (BPSS/SC) to work on a Royal Navy site. What You\’ll Be Doing Project & Operational Leadership * Act as the single point of accountability for day-to-day delivery of the project. * Oversee all site-based activity and coordinate with Operations, Sales, Finance, and QHSE teams. * Develop and manage resource plans, including recruitment and onboarding of site staff. * Manage subcontractors to ensure all work packages are delivered to specification and standards. * Maintain regular communication and positive working relationships with the customer. Health, Safety & Compliance * Uphold the highest safety standards in line with company policy and industry regulations. * Prepare and approve RAMS and other H&S documentation with support from internal teams. * Ensure site works are carried out in full compliance with contractual and legal obligations. Commercial & Strategic Delivery * Monitor budgets, timelines, and milestones, reporting progress internally and to the client. * Ensure timely and accurate submission of timesheets, expenses, and invoices. * Support forecasting and revenue recognition by sharing clear and consistent project updates. * Adopt a continuous improvement mindset to drive efficiency and excellence. What We\’re Looking For * 5+ years’ experience managing large-scale infrastructure or utility projects. * Strong leadership experience, ideally including the recruitment and management of site-based teams. * Proven track record of successfully delivering complex works involving multiple subcontractors and managing projects of around £10million+ value. * Excellent communication, organisational, and stakeholder management skills. * Deep understanding of site safety, compliance, and quality control ideally within confined space. Why Join Us? * Be at the forefront of a landmark naval infrastructure upgrade. * Take ownership of a high-value project with full end-to-end delivery responsibility. * Shape and lead your own site team in a respected and growing organisation. * Work in a collaborative culture with strong values around safety, integrity, and delivery excellence. * A culture of promoting personal development, with ample opportunity for training and earning qualifications * A culture of shared values, goals, attitudes, and business growth * Employee Assistance Programme (Welfare and Wellbeing) * 33 days holiday (including statutory Public Holidays) * Life Assurance plan (x3) * Company pension plan * Discounts and cashback across many high-street and online retailers (Supermarkets, Entertainment, Fashion, Days Out, Technology, Home, and Travel)