Senior Planner

Company: 1120 NG UK Limited.
Apply for the Senior Planner
Location: London
Job Description:

Senior Project Planner

UK citizenship required. Relocation assistance may be available. Clearance type: UK‑Security Check (SC). Travel: Yes, 10% of the time. Salary: £53,000 – £80,000.

As a Senior Project Planner you will support our PMO and programme teams in delivering some of the UK’s most complex defence projects. You will develop integrated project schedules using Primavera P6, provide schedule leadership, analysis and insight, and 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 and contractual requirements.
  • 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.

Benefits

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

Diversity and Inclusion

Northrop Grumman is committed to hiring and retaining a diverse workforce. We encourage individuals from all backgrounds and all abilities to apply.

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Posted: June 6th, 2026