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Project Manager – Transmission Infrastructure (ASTI Project)
About Omnia Projects Established in 2012, Omnia Projects is a respected specialist in T&D engineering, project management, and technical assurance. With over 110 staff, the company has delivered critical infrastructure for clients including National Grid, helping to shape the UK’s evolving energy system.
As part of Egis Group, Omnia provides end-to-end expertise across the full energy project lifecycle—from feasibility and design to commissioning and operation. This role strengthens Egis’ integrated service offering for energy transition, grid modernisation, and high-voltage infrastructure projects, including:
- Civil and structural engineering
- Protection and control systems
- Project delivery for substations, overhead lines, and cable tunnels
About the Role
We are seeking an experienced Project Manager to lead the delivery of a strategic ASTI (Accelerated Strategic Transmission Investment) project with a deadline at the end of 2029.
This critical position involves:
- Overseeing a £40m transformation project at Tilbury and Gravesend, including the construction of new cable tunnels beneath the River Thames.
- Managing the disconnection and decommissioning of existing 27km of overhead lines between Tilbury, Kingsnorth, and Grain substations.
- Coordinating interfacing projects with the Great Grids Partnership for reconductoring and uprating.
As a member of the Project Management Team, you will work closely with National Grid’s Contractors to ensure compliance with regulations, budgets, and deadlines while maintaining safety, sustainability, and quality standards.
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Key Responsibilities
Project Leadership & Delivery
- Lead the end-to-end delivery of the cable tunnel and associated infrastructure works, aligning with the ASTI framework and Ofgem requirements.
- Manage the Main Works Contractor, coordinating construction activities, with early works commencing February 2025.
- Oversee the construction of 4 new Cable Sealing End Compounds (CSECs) in Tilbury and Gravesend, and the 2.2km High Capacity Transit Cable (HCTC) tunnel containing two 400kV transmission circuits.
- Facilitate the safe disconnection and decommissioning of legacy cables and tunnels.
- Support the NEC4 Project Manager in fulfilling contractual duties under the Construction Contract.
- Ensure all regulatory approvals are met, including ASTI framework conditions, environmental legislation, and National Grid Technical Specifications.
Programme & Risk Management
- Develop and manage a fully integrated project programme, ensuring milestones, resources, and interfaces are achievable.
- Monitor budget, schedule, and quality standards, leading cost/value optimisation initiatives.
- Identify and mitigate risks and opportunities, enacting changes to maximize value outcomes.
- Prepare and present regular project status reports, including SHESQ performance, milestone progress, and risk data.
Team Collaboration & Industry Compliance
- Work collaboratively with other Project Managers and the Lead Project Manager.
- Manage lessons learnt throughout the project lifecycle.
- Ensure compliance with CDM (Construction Design and Management) Regulations.
Skills & Accountabilities
- Proficient in NEC4 contracts (knowledge of NEC4 clauses is essential).
- Familiarity with substations, cable tunnels, and overhead line projects.
- Completion of key training:
- Project Induction
- Tunnel Entry & Emergency Arrangements
- Intermittent Drugs & Alcohol Testing (as required).
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Requirements
Essential
✅ 10+ years’ experience in Project Management, preferably in Transmission & Distribution (T&D) projects. ✅ Demonstrated ability to deliver construction schemes safely, sustainably, on time, to budget, and to specification. ✅ Proficient in NEC4 contracts and CDM Regulations. ✅ Hands-on knowledge of:
- BP/SR 106 (Commissioning & Decommissioning)
- BP/SR 188 (Design Management)
- BP135 (Drawings Management)
- Strong awareness of UK transmission system engineering requirements.
Desirable
🔹 Experience working within National Grid operational areas or similar high-voltage assets. 🔹 Direct knowledge of tunnel immensities and decommissioning interfaces. 🔹 Grant Scheme experience managing Ofgem/regulatory projects.
Why Join Us?
- Purpose: Shape the future of the UK’s energy infrastructure in support of national and environmental goals.
- Culture: Act as an independent voice – balancing value for money, risk, regulatory, and social objectives.
- Growth: Egis is committed to Equality, Diversity, and Inclusion, recognising that diverse perspectives drive innovation.
- Opportunity: Join a multi-sectoral leader in the transition to net-zero energy systems.
Applications will be assessed based on experience, suitability, and alignment with the role’s criteria. All potential applicants are encouraged to apply.
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