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.
Job Description
Your Mission
Support the design, planning, and delivery of the future Client Delivery Model (CDM) for client site. You’ll help shape and implement an integrated operating model that aligns strategy with execution across a complex, highly regulated environment.
What you’ll do
* Design and refine operating model blueprints, principles, and success factors
* Define governance, structures, processes, and capabilities
* Align people, technology, and ways of working into a clear delivery plan
* Lead transition planning to the new operating model
* Support readiness, change control, and adoption of new ways of working
* Provide governance insights and support decision‑making
* Work across Defence and industry partners to drive alignment
* Turn complex inputs into clear, actionable outputs
What you’ll bring
* Strong experience in operating model design & transformation
* Expertise in governance, PMO, and portfolio management
* Confident stakeholder engagement in complex environments
Qualifications
* Consultancy/advisory experience in complex, multi‑stakeholder, regulated environments
* Background in Defence, secure, or nuclear settings
* Experience in large‑scale transformation and integrated delivery
* Strong commercial awareness across traditional & innovative delivery models
* Proven ability to baseline current capability and design operating models with stakeholder buy‑in
* Experience shaping and initiating Target Operating Model (TOM) transformations
* Solid understanding of Portfolio Management & P3M delivery
* Strong stakeholder management—confident working with senior leaders and driving alignment
* Strong analytical and problem‑solving skills
* Adaptable and resilient in fast‑changing environments
* Understanding of portfolio‑to‑programme alignment and demand vs capacity planning
* Knowledge of governance, assurance frameworks, and cross‑org delivery
* Experience embedding new ways of working and mobilising teams
* Ability to create clear artefacts (process maps, governance frameworks, org design, roadmaps)
Additional Information
Dynamic career management policy to enable employees to progress through five business lines: operations, project, technical, sales and support functions.
Opportunities to work on exciting, global projects.
Employee assistance programme with free mindfulness, health, wellbeing resources and a confidential support line available 24/7 via phone or text.
Discount vouchers for days out and restaurants, eye test and glasses vouchers, cycle‑to‑work scheme, free flu jabs.
Enhanced sick pay.
Security – The incumbent of this role must be a minimum of SC cleared and a sole UK national.
We are committed to equal treatment of candidates and promote as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter. Bring your unique contributions and help us shape the future.
NOTICE TO CANDIDATES ON RECRUITMENT FRAUD – We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. We will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process.
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