Organisational Development (OD) Specialist - Spans & Levels

Location: Ealing (Hybrid) 3 days office
Contract: 3 months (likely extention)
Rate: £600 per day (Umbrella)

A large, high‑profile organisation in the Ealing area is embarking on a critical phase of its transformation journey. With a workforce of over 2,600 employees across six diverse directorates, this organisation is taking a fresh, evidence‑led look at how it is structured - and needs an expert to lead the way.

We are seeking an experienced OD Specialist - Spans & Levels to deliver a strategic review of organisational layers, management spans, and structural effectiveness. Your work will directly influence senior leadership decisions and shape how the organisation operates for years to come.

This role is ideal for an OD professional who enjoys untangling complexity, working with data, and turning insight into practical, implementable change.

You will lead a high‑impact piece of work that sits at the heart of organisational effectiveness. Acting as the subject‑matter expert, you'll partner with senior leaders to challenge existing structures, identify opportunities for simplification, and design models that enable stronger leadership capacity and improved performance.

• Lead a comprehensive spans and layers review across six directorates.
• Analyse organisational structures, management ratios, and reporting lines to identify inefficiencies and opportunities for improvement.
• Benchmark against best practice and comparable organisations to inform future‑focused design.
• Act as a trusted advisor to senior leaders, using insight and data to influence decision‑making.
• Develop clear, compelling recommendations that balance efficiency, capability, and service delivery.
• Support the implementation of agreed changes, including stakeholder engagement and communications.
• Produce concise, high‑quality reports outlining key findings, risks, and benefits.
• Evaluate post‑implementation impact to ensure outcomes are realised.

• Strong, demonstrable experience in organisational design, particularly spans & layers or structural reviews.
• Background working in large, complex organisations (public sector experience advantageous).
• Highly developed analytical skills with confidence working with workforce and structural data.
• Gravitas and credibility to influence at senior leadership level.
• Sound understanding of OD frameworks, workforce planning, and job evaluation.
• Advanced Excel skills; experience with Power BI and HRIS systems desirable.
• Excellent communication skills with the ability to translate complexity into clarity.

• Degree in HR, Business, Organisational Psychology, or a related field.
• Postgraduate qualification or OD accreditation desirable.

• High‑profile, visible assignment with real organisational impact
• Opportunity to shape structure at scale
• Senior stakeholder exposure
• Competitive day rate and flexible hybrid working
• Strong potential for extension based on delivery

Adecco acts as an employment agency for permanent recruitment and an employment business for the supply of temporary workers. The Adecco Group UK & Ireland is an Equal Opportunities Employer.

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