Integration Manager

Assystem is an international company with one mission: accelerate the energy transition around the world.

Every day, our 7,500 switchers located in 12 countries (Europe, Middle East, Pacific Asia & Africa) connect their six thousand billion neurons to tackle the task of the century: switching to low-carbon energy.

We are a collective committed to the actors who are making the energy switch. Sharing our knowledge, expertise and values allows us to innovate and think differently about the energy transition.

Drawing on more than 55 years' experience in highly regulated sectors subject to strict security and safety requirements, we provide our customers with engineering and project management services, as well as digital services and solutions to optimize the performance of complex infrastructure projects throughout their life cycle. The Group is currently ranked third in the world for nuclear engineering.

To ensure a viable, efficient, and reliable energy future for all.

Job Description

Integration Manager – Major Infrastructure Programme

Location:
Scotland/Bristol

Employer:
Assystem (for a key client)

Join a flagship Major Programme delivering new floating and shore-based infrastructure to support submarine engineering operations. This role leads integration across a complex tranche of work within one of the UK's top government programmes.

The Role

As I
ntegration Manager
, you will lead an integrated, multi-disciplinary team, ensuring all delivery agents work to a common plan, schedule, and set of requirements. You will drive alignment across tranches, support programme delivery, and deputise for the Programme Manager when required.

Key Responsibilities

Leadership

• Provide credible leadership to delivery agents and integrated teams.
• Promote collaboration, positive culture, and inclusive working.
• Coach teams on programme management best practice.
• Manage performance, capability development, and compliance.
• Support and deputise for the Programme Manager.

Programme Delivery & Integration

• Monitor progress, resolve issues, and drive corrective actions.
• Maintain alignment across tranches with a credible, affordable schedule.
• Ensure common requirements, WBS, assumptions, and integrated planning.
• Track milestones, KPIs, and performance metrics.
• Support project controls, financial planning, and business case inputs.
• Own tranche-level benefits and reporting.

Stakeholder Engagement

• Build strong relationships across HMNB Clyde, Navy Command, DIO, MoD, and delivery partners.
• Support an integrated project team approach and stakeholder communication.

Qualifications

Experience & Qualifications

Essential:

• Leadership experience within large or complex delivery programmes.
• Strong ability to deliver in structured environments and solve problems creatively.
• Proven success leading virtual or cross-functional teams.
• Effective stakeholder management across complex organisations.
• Degree in a relevant discipline or equivalent professional experience.
• Chartered status or equivalent professional accreditation.

Desirable:

• Experience delivering in regulated environments.
• Knowledge of the defence or security sector.
• Commitment to using established project management methodologies.
• MSP, PRINCE2 Practitioner, or similar project/programme management qualifications.

Additional Information

Why join the Switchers community?

Assystem has over 55 years of experience in nuclear engineering. We are among the top 3 largest nuclear engineering companies.

Attractive social benefits: an engaging and dynamic Employee Committee (CE), holiday bonuses...

Ongoing training throughout your career. Numerous career opportunities: 70% of our managers come from internal promotions

SC Clearance required or the ability to gain Clearance.

Sole UK National

Hybrid working - Work between Glasgow, Bristol and Plymouth when needed.

Ideally Staff but Umbrella Contractor considered

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.

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.