Security jobs in United Kingdom

The UK’s nuclear sector has entered a renaissance, with Nuclear Energy now a vital component as the country moves towards a target of Net Zero.

Assystem provides critical support to this mission, accelerating the decommissioning and remediation of our legacy assets with a view to enabling a swifter energy transition, in parallel overcoming some of the largest engineering and environmental challenges of our generation.

As a Global top 3 independent nuclear engineering organisation, Assystem is active across the full decommissioning lifecycle. In the UK, we work across the Civil and Defence nuclear estates, pioneering agile and fit-for purpose, customer-focused solutions, drawing on our established pedigree for delivery engineering excellence. Assystem have a proud heritage gained over decades both in the UK and overseas, (delivering, supporting, managing) some of the most complex engineering projects in decommissioning, repurposing legacy assets and key new build projects such as Hinkley Point C.

Position Overview: The Infrastructure Planner's role is responsible for developing and maintaining integrated Infra plans for each Site Director area within the client construction projects. It draws together key milestones; critical dates and interdependencies between key stakeholders and Operational plans/programmes.

The post incumbent works with Stakeholders to identify risk, opportunities and potential mitigation and through the delivery of resourced schedules and succinct reports, provides added value to the Strategic Programme. The role is also responsible for the timely submission of integrated Infra plans within the strategic level integrated plan.

Integrate multi-source data into resource-loaded Primavera P6 schedules 📊

Engage extensively with cross-organisational stakeholders and KSHs 🤝

Develop and manage Site Director and integrated infrastructure plans 🗂️

Analyse, challenge, and report risks, issues, opportunities, and discrepancies 🔍

Run cause-and-effect and mitigation scenarios to support decision-making 🔄

Maintain a single, robust “version of the truth” with NC, PMs, and Client✅

Interface with Engineering and Compliance to capture scope and dependencies ⚙️

Produce monthly progress and performance reports for senior boards 📑

Submit accurate integrated plans into the strategic baseline each month 🏗️

Ability to work independently and collaboratively with Project Teams 🤝

Experience planning across the full project lifecycle 🔄

Proven experience in monthly programme updates and reporting 📅

Experience reviewing and assessing supplier schedules 🔍

Solid understanding of risk and opportunity management within planning ⚠️

Experience working in a client-facing environment 🏢

Professional and effective stakeholder communication skills 🗣️

Good commercial awareness 💼

Experience working in an operational environment 🏗️

Experience in a secure environment 🔐

Typically 4–5 years’ relevant experience ⏳

Experience managing schedules on NEC3 / NEC4 projects 📑

Experience working with integrated programme schedules 🧩

Why join the community of Switchers?:

🔹The Group is currently ranked Third in the world for nuclear engineering.

🔹A dynamic career management policy to enable our employees to progress through our five business lines: operations, project, technical, sales and support functions

🔹Provide opportunities to work on exciting, global projects

🔹Access to an 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

Security clearance:

Due to the nature of work to be undertaken applicants will be required to meet certain residency criteria in order to attain a minimum level of UK security clearance if not already security cleared to a minimum SC level.

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.

• Potential of 3 days a week on client site in Helensburgh
• Hybrid role with 3 days per week in the Client's Bristol office.