Senior Planner

Northrop Grumman UK; Greater London; Hybrid; GBP 53,000 - 80,000; Full time

Benefits offered by this job

Flexible & Hybrid work

Private healthcare

Cash health plan

Holiday buy/sell

Career development

Bonuses

Job summary

Northrop Grumman UK is seeking a Senior Project Planner to support the PMO and defence programmes. You will develop and assure robust, integrated project schedules using Primavera P6, guiding decisions at project, programme and portfolio levels.

You will collaborate with programme managers and cross‑functional teams, apply Earned Value Management, perform schedule risk analyses, and produce clear performance dashboards for internal and customer reviews.

Qualifications

• 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.

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.

Skills

Primavera P6 mastery

Earned Value Management

Schedule Risk Analysis

Analytical skills

English fluency

Stakeholder management

Tools

Primavera P6

Microsoft Office

Job description

UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes

RELOCATION ASSISTANCE: Relocation assistance may be available

CLEARANCE TYPE: UK-Security Check (SC)

TRAVEL: Yes, 10% of the Time

Salary: £53,000 - £80,000

What’s your possible?

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. It’s what we call Defining Possible.

This mindset goes beyond our customer solutions; it’s the foundation for your career development and the impact we have within the community.

The Opportunity

This is more than just a job; it’s a mission.

As a Senior Project Planner, you’ll play a critical role in supporting our PMO and programme teams as they deliver some of the UK’s most complex defence projects. You will be responsible for developing and assuring robust, fully integrated project schedules that help shape decision‑making at project, programme and portfolio level.

You will work closely with Programme and Project Managers as a trusted planning partner, providing authoritative schedule leadership, analysis and insight. Your expertise will help ensure alignment with contractual, commercial and technical objectives across the full programme lifecycle.

Role 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.

Essential Experience And Skills

• 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.

If you meet many, but not all, of these requirements, we still encourage you to apply. We’re committed to developing people and supporting growth within the role.

Security Clearance

Due to the nature of our work, you must be a UK national.

You must be able to gain and maintain SC UK Government security clearance.

Benefits

• Flexible and hybrid working options, including the opportunity for a compressed fortnight.
• Private healthcare.
• Cash health plan.
• Holiday buy/sell scheme.
• Career development programmes and professional training.
• Performance‑based bonuses.

Why Join Us?

A Mission to Believe In

Every day, we contribute to building a more secure and connected world. The work you do will have real‑world impact across the defence and national security landscape.

A Place to Belong and Thrive

We foster an inclusive culture where every voice is valued. You’ll be joining a team that encourages curiosity, collaboration and continuous improvement.

Your Career, Your Way

Shape your career journey with opportunities for development, mentoring, internal mobility and leadership support.

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.