Senior Planning Applications Engineer – Retail / eCommerce
First seen by Alion on May 20, 2026. Salt scores A on the Alion truth index.
Salary: Up to £70,000
Location: London HQ (hybrid working model)
We’re partnering with a global consumer brand looking for a Senior Planning Applications Engineer to support and evolve enterprise planning capabilities across retail and eCommerce operations.
This position sits at the intersection of Planning, Supply Chain and Technology, with a particular focus on Store Allocation, Replenishment and WSSI (Weekly Sales, Stock & Intake).
You’ll play a key role in building, optimising and supporting planning solutions that enable better commercial and inventory decisions across the business.
The Role Design, build and support enterprise planning applications and solutions
Enhance and optimise existing planning templates, models and capabilities
Work closely with Planning, Supply Chain and Technology stakeholders to gather requirements and deliver solutions
Support initiatives across allocation, replenishment, inventory management and stock intake planning
Contribute to documentation, change management and user enablement
Drive continuous improvement across planning processes and systems Experience Required 5+ years working with enterprise planning technologies such as Board, Anaplan, SAP SAC, Hyperion or similar planning platforms
Experience supporting WSSI, Merchandise Planning, Allocation, Replenishment or Inventory Planning functions
Strong understanding of planning models, calculations, business rules and integrations
Knowledge of SQL and relational databases
Strong analytical and stakeholder management skills Nice to Have Retail, eCommerce, Fashion, Consumer Goods or Supply Chain experience
SAP ERP exposure
Microsoft Fabric experience
Background delivering planning transformations or consulting projects Ideal background: Planning Systems, Merchandise Planning, Retail Technology, Allocation, Replenishment, Inventory Optimisation or Enterprise Planning professionals who understand how technology supports stock and commercial decision making.
This is a great opportunity for someone who enjoys operating between business planning teams and technical delivery, helping shape scalable planning capabilities in a complex retail environment.
*Rates depend on experience and client requirements