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Principal Project Manager (Framework / Client Lead)

Assystem
Glasgow · posted 19 August 2026
Job type
full time
Location
Glasgow, Scotland
Category
Management & Operations

Principal Project Manager (Framework / Client Lead)

  • Full-time
  • ASSYSTEM Job: Project Management
  • Type of contract ASSYSTEM: Permanent
  • ASSYSTEM Sector: Defence

Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements.

Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions.

This role acts as the single point of leadership and representation for Assystem within a joint venture, delivering work on a major Defence Infrastructure framework.

The successful candidate will operate as a framework and client-facing lead, responsible for:

  • Building and maintaining strong, trusted client relationships
  • Representing Assistent's interests and ensuring visibility within the joint venture
  • Enabling successful delivery across multiple workstreams rather than managing individual projects
  • Drumbeat framework operations which support the current success and future growth of the framework

The role requires someone comfortable operating at a strategic and influencing level, working across organisational boundaries and without direct control of all delivery resources.

The role reports to the Defence Business Manager, who holds responsibility for delivering the budget and performance targets for the account.

This role will be based out of our Assystem Glasgow office with travel to client sites (Clyde) and partner offices as required.

Responsibilities

  • Act as a senior client interface, building long-term, trusted relationships with key stakeholders
  • Represent Assistent's interests and ensuring visibility within the joint venture
  • Understand client priorities and proactively shape delivery approaches and solutions to meet evolving needs
  • Support the identification and development of future opportunities within the framework
  • Act as Assistent's focal point within the JV environment, working closely with partner organisations
  • Foster a collaborative, high-performing delivery culture across all parties
  • Navigate multi-partner dynamics, influencing decisions and ensuring effective alignment
  • Represent Assistent in relevant governance, operational and leadership forums

Framework Oversight & Delivery Enablement

  • Provide oversight across multiple projects/workstreams, ensuring alignment to framework objectives
  • Act as a senior escalation point for delivery, client or partner issues
  • Ensure effective mobilisation of teams and integration of in-house capability and supply chain
  • Drive continuous improvement and consistency across delivery activities

Commercial & Account Performance

  • Contribute to delivery of account turnover and margin in collaboration with the Business Manager
  • Maintain visibility of framework performance, risks and opportunities
  • Support commercial positioning and protect Assistent's interests within the JV
  • Provide regular reporting to internal stakeholders

Resource & Capability Coordination

  • Maintain a reliable forward view of demand, supporting resource planning and capability development
  • Act as a key interface for recruitment and onboarding of technical resources into the framework

Opportunity Development & Bidding

  • Act as the early owner of new opportunities
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