Nuclear Defence - Senior Planner

Assystem; Aldermaston; On-site; GBP 60,000 - 90,000; Full time

Job summary

Assystem is seeking an experienced Senior Planner to support a major nuclear defence programme in Aldermaston. The role focuses on developing, maintaining, and controlling integrated project schedules across complex engineering, infrastructure, and construction activities in a highly regulated environment.

The Senior Planner will use Primavera P6 to monitor progress, perform critical path analyses, and generate regular dashboards and forecasts for programme leadership.

Qualifications

• Develop and maintain integrated project schedules for complex nuclear defence programme.
• Monitor progress, analyze performance and identify schedule risks and opportunities.
• Support planning processes in line with programme controls requirements.
• Prepare regular progress reports, dashboards and forecasting information.

Responsibilities

• Develop and maintain detailed integrated project schedules using Primavera P6.
• Monitor progress, analyse performance, and identify schedule risks and opportunities.
• Support planning, scheduling, and reporting processes in line with programme controls.
• Conduct critical path analysis and provide schedule impact assessments.
• Prepare regular progress reports and dashboards for leadership.
• Collaborate with project managers and stakeholders to ensure data accuracy.

Skills

Project planning

Critical path analysis

Schedule risk management

Tools

Primavera P6

Job description

# Nuclear Defence – Senior Planner* Defence* Contracting / Project Management* Aldermaston* United Kingdom* 12/11/26* On site* ShareI apply##Finding solutions to climate change is the priority of the 21st century, and means switching to low-carbon energy. At Assystem, our mission is to accelerate the energy transition worldwide. To achieve this, our 7,500 Switchers combine their historical engineering expertise and project management with digital technologies. In our 12 countries (Europe, Middle East, Asia) of operation, we are working on the production and distribution of low-carbon electricity, through the development of nuclear and renewable energies. We are also supporting the modernisation and development of energy grids, managing the setup and siting for new transmission and distribution networks, and using hydrogen to decarbonise the transport and industry sectors.## Job Description**Overview** We are seeking an experienced Senior Planner to support the successful delivery of a major nuclear defence programme in Aldermaston. The role is responsible for developing, maintaining, and controlling integrated project schedules across complex engineering, infrastructure, and construction activities within a highly regulated environment.**Key Responsibilities*** Develop and maintain detailed integrated project schedules using Primavera P6.* Monitor progress, analyse performance, and identify schedule risks and opportunities.* Support the implementation of planning, scheduling, and reporting processes in line with programme controls requirements.* Conduct critical path analysis and provide schedule impact assessments to support decision-making.* Prepare regular progress reports, dashboards, and forecasting information for project and programme leadership.* Work collaboratively with project managers, engineers, commercial teams, and other stakeholders to ensure accurate planning data and programme alignment.* Support change control, baseline management, and recovery planning activities.**NOTICE TO CANDIDATES ON RECRUITMENT FRAUD – We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process.**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.