Site Planning Manager

Job Summary

At our GKN Filton site, we specialise in the design and manufacture of large complex structural wing assemblies, detailed metallic components and wing systems for a combination of both civil and military aircraft. We’re seeking a skilled and knowledgeable Site Planning Manager to join us on a permanent basis. This role is based at our Filton site in Bristol and requires full‑time presence on site, with a flexible but structured approach to hours over 4.5 days per week, and an early finish on Fridays.

Responsibilities

• Develop and maintain elements of the integrated site production plan.
• Support the site-level SIOP process, including data preparation, analysis, and scenario modelling.
• Translate customer demand and forecasts into executable production schedules.
• Perform capacity analysis and resource alignment, identifying constraints and risks.
• Contribute to the development and adherence of planning standards, governance and data quality.
• Collaborate with procurement, manufacturing, logistics, and commercial teams to resolve planning issues.
• Lead scenario planning and what‑if analysis to support decision‑making.
• Use data analytics and digital tools to drive insight and improve planning performance.
• Provide technical support and guidance to the planning team, helping to build capability.
• Identify and drive continuous improvement opportunities in planning processes and tools.

Qualifications – Essential

• Ideally educated to degree level and/or have 5 years previous experience in a relevant position.
• Knowledge and experience of capacity planning and SIOP processes.
• Knowledge and experience of manufacturing and finance systems.
• Good understanding of ERP systems.
• A team player able to influence without direct line reports.
• Ability to utilise data, analytics and digital planning tools to support insight‑led decision making and continuous improvement.

Qualifications – Desirable

• Supply Chain Management education preferably, with professional curriculum and certification (e.g., APICS CPIM or equivalent).

Benefits

• Competitive salary and remuneration package dependent on experience.
• 22.5% company bonus based on personal and business performance.
• £5,500 annual car allowance.
• Industry‑leading pension scheme with 1.5× employee contributions (max 12%).
• Life assurance 8× salary.
• 25 days holiday plus bank holidays.
• Flexible working hours.
• Income protection.
• Shopping discounts.
• Cycle‑to‑work scheme.
• Employee assistance programme.
• Virtual GP clinic for you and your immediate family.
• A collaborative, dynamic working environment.

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