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About the Role

As a Senior Project Planner, you will play a critical role in supporting PMO and programme teams in delivering complex defence projects. You will be responsible for developing and assuring robust, fully integrated project schedules that shape decision-making at project, programme, and portfolio levels. You will work closely with Programme and Project Managers as a trusted planning partner, providing authoritative schedule leadership, analysis, and insight to ensure alignment with contractual, commercial, and technical objectives across the full programme lifecycle.

Responsibilities

• Develop, maintain, and control fully integrated master schedules using Primavera P6 for large, multi-workstream defence programmes.
• Ensure schedules are logically linked, baselined, and structured in line with best practice, contractual requirements, and internal governance.
• Provide proactive planning support including critical path analysis, what-if modelling, and recovery planning.
• Identify, analyse, and manage schedule risks and opportunities, integrating mitigations into programme schedules.
• Support bids and proposals by creating compliant, credible Primavera P6 schedules and planning inputs.
• Apply Earned Value Management to track schedule performance, support variance analysis, and assess change impacts.
• Conduct and support Schedule Risk Analysis, including quantitative modelling, and present findings to senior stakeholders.
• Produce clear, high-quality schedule performance reports and dashboards for internal and customer reviews.
• Support internal and external audits related to planning, EVM, and risk.
• Collaborate with engineering, supply chain, manufacturing, and commercial teams to maintain schedule integrity.
• Provide mentoring and oversight to junior planners and act as a subject matter expert in Primavera P6, EVM, and schedule risk management.

Requirements

• Significant experience in project planning and scheduling within defence, aerospace, or other complex engineering environments.
• Expert, hands-on knowledge of Primavera P6 for developing and managing integrated master schedules.
• Proven experience applying Earned Value Management to monitor schedule performance.
• Experience conducting Schedule Risk Analysis and interpreting quantitative risk outputs.
• Strong analytical skills with the ability to communicate complex schedule data clearly.
• Experience coordinating integrated schedules across multi-disciplinary teams and suppliers.
• Proficient in Microsoft Office and fluent in written and spoken English.
• Strong interpersonal skills with the ability to engage constructively with diverse stakeholders.
• Must be a UK national.
• Must be able to gain and maintain SC UK Government security clearance.

Skills

• Primavera P6
• Earned Value Management (EVM)
• Schedule Risk Analysis
• Microsoft Office
• Critical path analysis
• What-if modelling
• Recovery planning

Location

• UK

Work Type

• Hybrid
• Full-time

Experience Level

• Senior

Salary/Compensations

• £53,000 - £80,000

Benefits

• Flexible and hybrid working options
• Opportunity for a compressed fortnight
• Private healthcare
• Cash health plan
• Holiday buy/sell scheme
• Career development programmes
• Professional training
• Performance-based bonuses

About the Company

• At Northrop Grumman UK, you are part of a team driving innovation where it matters most – solving tomorrow’s challenges and shaping the technology solutions of the future.
• We foster an inclusive culture where every voice is valued.
• We are committed to hiring and retaining a diverse workforce, and encourage individuals from all backgrounds and all abilities to apply and consider becoming a part of our diverse and inclusive workforce.

Equal Opportunity

• Northrop Grumman is committed to hiring and retaining a diverse workforce, and encourages individuals from all backgrounds and all abilities to apply and consider becoming a part of our diverse and inclusive workforce.