Customer Development Manager

Job Description:

Title: Customer Development Manager / National Account Manager 

Location: Waltham on the Wolds, 1 to 2 days per month

Contract: Full-time, 6 Months (35 hours per week)

About the Role

Randstad Sourceright are recruiting on behalf of Mars for an experienced Customer Development Manager / National Account Manager to support the management and growth of a key grocery retail customer. This role plays a critical part in delivering sales plans, managing Joint Business Planning activity, and driving performance through strong commercial and analytical capability.

Key Responsibilities

• Deliver against sales targets and support the execution of Joint Business Plans (JBP).

• Manage and develop the relationship with a major grocery retailer.

• Lead forecasting processes and contribute to financial planning and reporting.

• Support invoice management and customer financial reconciliations.

• Identify opportunities to grow, protect, and diversify customer business.

• Analyse performance trends and present insight-led recommendations.

• Ensure operational excellence and high-quality customer service delivery.

Requirements

• Proven experience as a Customer Development Manager or National Account Manager.

• Strong understanding of the Joint Business Planning (JBP) process.

• Excellent financial acumen with experience in forecasting, reporting, and invoicing.

• Strong analytical skills and the ability to interpret commercial data.

• Effective relationship builder with strong communication and negotiation capability.

What We Offer

• Opportunity to work with one of the world’s most recognised FMCG brands.

• Hybrid flexibility — required onsite only 1–2 times per month.

• Competitive day rate and supportive working environment.

• A role that offers both autonomy and the ability to make a direct commercial impact.

Apply Now

If you are an experienced sales professional looking for an engaging and commercially focused role within a leading global organisation, apply today!

We are committed to providing equal employment opportunities and encourage all qualified candidates to apply.