Head of Trading

Numeriś; Swansea; On-site; GBP 59,000 - 72,000; Full time

Benefits offered by this job

Pension

Staff discount

Learning budget

Job summary

Numeris is seeking a Head of Trading to own the commercial performance of the online store. You will decide promotions, pricing, and spend to acquire and retain customers, turning daily data into profitable actions.

You will lead the Paid Media & CRM teams, set a trading rhythm, and report to the Chief Commercial Officer. A hands-on leader driving visibility and margins across the business.

Qualifications

• 4+ years in ecommerce trading or commercial roles.
• Proven ability to grow online revenue while protecting margins.
• Hands-on experience managing paid media budgets with ROAS accountability.
• Experience with Klaviyo CRM/email campaigns.

Responsibilities

• Build and own annual trading plan and promotional calendar across peak periods.
• Set weekly, monthly and quarterly sales and margin targets; forecast performance.
• Lead weekly trading meetings; decide actions for the week ahead.
• Own pricing strategy, promotions, and bundle evaluations for incremental return.
• Monitor competitor pricing and market trends; respond quickly.
• Manage stock, promotions, and onsite merchandising to maximize visibility.
• Own paid media budget and strategy across Meta/Google/TikTok with ROAS targets.
• Lead CRM/email/SMS programmes and segmentation to lift LTR and repeat purchases.
• Improve onsite conversion and AOV through tests and offers.
• Lead, coach and grow Paid Media & CRM team; own trading dashboards.

Skills

Ecommerce trading

Performance marketing

Team leadership

Financial acumen (P&L)

Data-driven decisions

Advanced Excel/Sheets

Strong communication

Strategic planning

Promotions & pricing

Analytics (GA4)

Tools

Klaviyo

GA4

Looker Studio

Power BI

Tableau

Shopify

Meta Ads

Google Ads

Job description

The Head of Trading owns the commercial performance of the Numeris online store, from the first ad a customer sees to their third order. You will decide what we promote, how we price it, where we spend to acquire customers and how we bring them back, then turn daily data into actions that grow profitable sales.

• Role: Head of Trading
• Reports to: Chief Commercial Officer
• Team: Paid media & CRM
• Contract: Full-time, permanent
• Salary: Up to £65,000 + 25% bonus tied to revenue and margin targets

This is a hands-on leadership role. You will set the strategy and also be close enough to the numbers to spot a slow-selling line, a broken promotion or an overspending campaign before lunch.

Key responsibilities

Trading strategy and planning

• Build and own the annual trading plan and promotional calendar, including peak periods such as Black Friday, Christmas and seasonal sales.
• Set weekly, monthly and quarterly sales and margin targets, and forecast performance against them.
• Lead the weekly trading meeting: review what sold, what didn't, and agree the actions for the week ahead.

Pricing and promotions

• Own pricing strategy across the range, balancing competitiveness, conversion and margin.
• Plan, launch and evaluate promotions, discount codes and bundles, measuring their true incremental return.
• Monitor competitor pricing and market trends and respond quickly.

Range, stock and merchandising

• Work with buying and operations to keep the right stock in the right depth, minimising both stockouts and overstock.
• Drive sell-through and clearance plans for aged or slow-moving stock.
• Direct onsite merchandising: homepage, category ordering, product pages and search results, so the best-performing products get the most visibility.

Paid media and acquisition

• Own the paid media budget and strategy across channels such as Meta, Google and TikTok, allocating spend to the products and audiences that return the most profit.
• Set ROAS and customer acquisition cost targets, and manage campaigns, agencies or freelancers against them.
• Keep paid media and trading in step, so ads only push products that are in stock, priced to sell and carry healthy margin.

CRM and retention

• Own the CRM and email/SMS programme, including welcome, abandoned basket, post-purchase and win-back flows.
• Segment customers and plan campaigns that lift repeat purchase rate and customer lifetime value.
• Use customer data to shape promotions, so discounts reward loyalty rather than giving margin away to customers who would have bought anyway.

Customer and conversion

• Improve conversion rate and average order value through onsite changes, testing and offers.
• Manage selling channels beyond the main site where relevant.

Leadership and reporting

• Lead, coach and grow the paid media and CRM team, and build a single trading rhythm that brings merchandising, marketing and CRM together.
• Report on trading, acquisition and retention performance to the Chief Commercial Officer and leadership team, with clear recommendations.
• Own the trading dashboards and make sure the business has reliable, timely data.

Skills and experience

• 4+ years in ecommerce trading, performance marketing or commercial roles, including at least 2 years leading a team.
• A track record of growing online revenue while protecting or improving margin.
• Hands-on experience managing paid media budgets on Meta and Google Ads, with accountability for ROAS and acquisition cost.
• Experience running CRM and email/SMS programmes on a platform such as Klaviyo.
• Strong commercial and numerical skills: comfortable with P&L, margin, forecasting and stock metrics.
• Advanced Excel or Google Sheets, and hands-on experience with web analytics such as GA4.
• Experience planning and running promotional calendars, including peak trading.
• Familiarity with Shopify and its reporting.
• Clear communicator who can turn data into decisions and bring marketing, buying and operations along.
• Marketplace trading experience, for example Amazon or eBay.
• Experience with A/B testing and conversion optimisation.
• Exposure to BI tools such as Looker Studio, Power BI or Tableau.

How success is measured

In your first 12 months, success means hitting the trading plan profitably and leaving the business with a sharper weekly trading rhythm.

Within 90 days you will have reviewed pricing, promotions and paid media spend across the range, audited the CRM flows, set up a weekly trading report, and presented a plan for the next peak season.

What we offer

• Salary of up to £65,000, plus a performance bonus of up to 25%.
• Pension, staff discount, learning budget, or other benefits
• Real ownership: a seat at the leadership table and direct influence on how the business grows.

Numeris is an equal opportunity employer. We welcome applicants from all backgrounds and will make reasonable adjustments throughout the hiring process.