Data-Driven Merchandiser: Shopify & Insights

Self-Portrait; City Of London; On-site; GBP 32,000 - 46,000; Full time

Job summary

Self-Portrait is seeking a commercially minded Merchandiser to transform data into actionable insights that drive commercial decisions for our eCommerce business. You will analyse trading performance, automate reporting, and support seasonal planning with detailed analysis of product, customer and inventory performance.

You will maintain accurate online merchandising on the Shopify platform, optimise product presence, and collaborate with cross-functional teams to improve efficiency and stock

Qualifications

• Experience Merchandising or a data retail trading role.
• Strong analytical skills with the ability to interpret large datasets.
• Experience using Shopify.
• Excellent Excel skills.
• Strong commercial awareness within retail or fashion.
• Ability to present data clearly and communicate insights to non-technical stakeholders.
• Highly organised with excellent attention to detail.

Responsibilities

• Analyse sales by size to identify demand patterns.
• Monitor size sell-through and stock availability.
• Produce size curve recommendations for future buys.
• Highlight sizing issues affecting conversion or customer returns.
• Support buying and merchandising teams with size planning recommendations.
• Produce seasonal performance reviews by category, product and collection.
• Analyse sell-through, markdown performance and stock efficiency.
• Review newness performance and identify opportunities for future range planning.
• Analyse lifecycle performance from launch through end-of-season.
• Provide recommendations for future assortment planning.
• Support weekly trade meetings with meaningful commercial insights.
• Assist in forecasting sales and inventory performance.
• Work closely with Merchandising, Buying, Digital Marketing and Finance.
• Help identify opportunities to improve sales, margin and inventory productivity
• Develop, maintain and continuously improve trading reports and dashboards.
• Analyse sales, inventory and profitability to identify commercial opportunities and risks.
• Identify trends, anomalies and actionable insights to support trading decisions.
• Produce post-season reviews and performance summaries with clear recommendations.

Skills

Merchandising experience

Analytical skills

Shopify experience

Excel proficiency

Retail/fashion awareness

Data storytelling

Attention to detail

Tools

Shopify

Job description

Self-Portrait is seeking a commercially minded Merchandiser to transform data into actionable insights that drive commercial decisions for our eCommerce business. You will analyse trading performance, automate reporting, and support seasonal planning with detailed analysis of product, customer and inventory performance.

You will maintain accurate online merchandising on the Shopify platform, optimise product presence, and collaborate with cross-functional teams to improve efficiency and stock