Assistant Planning Manager

Job Description:

Your impact

Leonardo have an exciting opportunity within the Operations Planning function for an Assistant Planning Manager who will be reporting to the Line of Business Planning Manager. You will be onsite during training and after that there is an opportunity to work a couple of days from home.

The role of the Assistant Planning Manager (Development) is to support the Planning Manager and other Ass. Planning Managers, where they will ensure the integrity and achievability of the Master Production Schedule (MPS) delivers the Line of Business requirements through engagement with all key stakeholders.  Work with the Planning Manager to ensure all (Plant and Project) Inventory is optimised, delivering reviews/changes on safety time/stock including managing Dead Stock process. Responsible for monitoring and managing demand variability for internal make and external supply items, maintain supply chain master data.  Support the cleanup of Overdue Supply including LTP (Late to Place) requisitions while working with Procurement to achieve this through Demand management and key stakeholder engagement.

What you’ll bring

Support the Line of Business Planning Manager in –

• Developing into the role of Ass. Planning Manager.
• Work with the Planning Manager and other Ass. Planning Managers to support/maintain all aspects of existing MPS Demand Process including the transfer to, and manage thereafter, utilising the new SAP via “P6 process”.
• Learn all aspects of how to run the standard Planning reports, understanding the need for all the data provided, while supporting Project meetings.
• Maintain all process documents in relation to the SAP “P6” Go Live process delivering key stakeholder buy-in/compliance.
• Support Planning Managers to ensure the creation of one manufacturing plan delivering key stakeholder buy-in/compliance (Manufacturing Project Manager/Project Leader, Manufacturing Team Leader, Procurement and Project Mangers) to ensure delivery of a robust plan for all MPS/MRP project deliverables from a manufacturing perspective.
• Support Planning Managers to ensure that the MPS and aggregated demand for relevant area including Firm projects and Prospects for the 3 month – 5 year window Labour & material including Forecast.
• Support the weekly Demand, Supply and Capacity meetings utilising all existing reporting tools (Including new dashboard based reporting).
• Support simulations, review demand and supply variability, escalate as require to procurement / project and maintain correct levels of safety stock & safety time
• Work with the Planning Manager to manage the Inventory & optimisation through life cycle in accordance with lean manufacturing principles, requirements and Site targets.
• Support the Disposal of Slow moving / dead stock
• Work with the Planning Manager to maintain data integrity ensuring effective resolution of any master data issues.
• If required support the management of Closed Projects.

Technical Skills/Knowledge:

• Knowledge in Planning, MPS & Inventory controls would be beneficial but Training will be given
• Knowledge of MRP principles (Demand & Supply)
• Knowledge of implementing & managing change

This is not an exhaustive list, and we are keen to hear from you even if you might not have experience in all the above. The most important skill is a good attitude and willingness to learn.

Security Clearance

This role is subject to pre-employment screening in line with the UK Government’s Baseline Personnel Security Standard (BPSS). An additional range of Personnel Security Controls referred to as National Security Vetting (NSV) may apply, this could include meeting the eligibility requirements for The Security Check (SC) or Developed Vetting (DV). For more information and guidance please visit: https://careers.uk.leonardo.com/gb/en/security-and-vetting

Why join us

At Leonardo, our people are at the heart of everything we do. We offer a comprehensive, company-funded benefits package that supports your wellbeing, career development, and work–life balance. Whether you're looking to grow professionally, care for your health, or plan for the future, we’re here to help you thrive.

• Time to Recharge: Enjoy generous leave with the opportunity to accrue up to 12 additional flexi-days each year.
• Secure your Future: Benefit from our award-winning pension scheme with up to 15% employer contribution.
• Your Wellbeing Matters: Free access to mental health support, financial advice, and employee-led networks championing inclusion and diversity (Enable, Pride, Equalise, Armed Forces, Carers, Wellbeing and Ethnicity).
• Rewarding Performance: All employees at management level and below are eligible for our bonus scheme.
• Never Stop Learning: Free access to 4,000+ online courses via Coursera and LinkedIn Learning.
• Refer a friend: Receive a financial reward through our referral programme.
• Tailored Perks: Spend up to £500 annually on flexible benefits including private healthcare, dental, family cover, tech & lifestyle discounts, gym memberships and more.
• Flexible working: Flexible hours with hybrid working options. For part time opportunities, please talk to us about what might be possible for this role.

For a full list of our company benefits please visit our website.

Leonardo is a global leader in Aerospace, Defence, and Security. Headquartered in Italy, we employ over 53,000 people worldwide including 8,500 across 9 sites in the UK. Our employees are not just part of a team—they are key contributors to shaping innovation, advancing technology, and enhancing global safety.

At Leonardo we are committed to building an inclusive, accessible, and welcoming workplace. We believe that a diverse workforce sparks creativity, drives innovation, and leads to better outcomes for our people and our customers. If you have any accessibility requirements to support you during the recruitment process, just let us know.

Be part of something bigger - apply now!

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