Senior Project Manager in Chelmsford

Join us and you’ll join one of the UK’s largest construction, engineering, and infrastructure companies. As a Senior Project Manager, you’ll work alongside a team delivering exceptional outcomes—for our people, the built environment, and a truly sustainable future.

We are seeking an experienced HV Substation Senior Project Manager to lead the delivery of a major GIS high‐voltage (HV) infrastructure project, located in Lancaster, from concept through to commissioning. The ideal candidate will bring strong technical knowledge of HV environments, experience with NEC4 contracts, and a track record of managing subcontractors, programme delivery, cost control, and risk/opportunity management.

• Project Leadership
  • Lead the end-to-end delivery of a two stage HV substation project, ensuring compliance with safety, technical, and contractual requirements.
  • Plan and manage project programme, milestones, interfaces, and deliverables to meet customer and business objectives.
• Contract & Commercial Management
  • Administer projects under NEC4 contract governance, including early warnings, compensation events, change control, and communications.
  • Maintain robust cost management practices: forecasting, cost tracking, budget control, and financial reporting.
• Technical & Construction Management
  • Oversee construction activities within HV environments, ensuring safe working practices and adherence to relevant standards.
  • Manage subcontractors effectively: performance, quality, progress, and compliance with contractual obligations.
  • Coordinate with engineering, commissioning, and operational teams to ensure quality of delivery.
• Risk & Opportunity Management
  • Lead risk identification, assessment, and mitigation activities throughout the project lifecycle.
  • Drive opportunity realization to improve programme, cost, or technical outcomes.
  • Maintain and report on project risk registers and mitigation strategies.
• Stakeholder & Interface Management
  • Act as the primary point of contact for clients, subcontractors, suppliers, and internal teams.
  • Ensure strong communication and collaboration across engineering, commercial, HSE, and operational teams.
  • Prepare and present project progress reports, dashboards, and performance updates.
• Health, Safety & Environment
  • Promote and enforce a strong safety culture, ensuring compliance with HV safety rules, CDM regulations, and company HSE policies.
  • Support environmental compliance and sustainability objectives throughout project delivery.

• Bachelor's degree in engineering or project management.
• Proven experience managing HV substation or transmission/distribution projects.
• Strong understanding of NEC4 contract mechanisms and commercial governance.
• Demonstrable experience managing multiple subcontractors and designers and interfaces.
• Programme management skills.
• Cost management and financial reporting capability.
• Experience in risk mitigation and opportunity realisation.
• Strong communicator with the ability to influence stakeholders at all levels.
• Demonstrated commitment to health, safety, quality and environmental compliance.
• Experience in working with transmission connected Clients.

• Project management qualifications (APM, PRINCE2, PMP).
• Heavy civil or mechanical and electric engineering background.

In return, we offer a wide range of rewards and benefits:

• Benefits: 25 days holiday entitlement + Statutory and public holidays + Additional 3 (three) days holiday available on our purchase scheme.
• Life Assurance and Career Progression.

Linxon is a joint venture company set up by AtkinsRéalis and Hitachi Energy to deliver turnkey electrical AC substation projects. At Linxon, we are the experts for substations related to renewable and conventional power generation, power transmission and transportation solutions. Our responsibility includes project design, engineering, procurement, construction, management and finally commissioning. Our team combines project management expertise and industry leading technology to create a true partner for reliable, sustainable energy solutions.