We are looking for an eCommerce Business Manager to join our growing eCommerce UK Trading team and be at the forefront of our UK growth, focusing on Next Onsite Advertising! This position is based at Head Office in Leicestershire, offering a competitive salary alongside great benefits! At NEXT, not only are we one of the UKâs largest fashion retailers, but weâre also one of the largest listed companies, full-stop. Selling our products and thousands of world-famous brands, both in-store and online UK and Internationally. Whatâs more, weâre growing. Fast. And itâs the kind of growth and investment that is exciting for everyone in our business. The UK Trading team fuels UK growth by optimising online product sales on Next.co.uk across Womenswear, Menswear, Childrenswear and Home. They drive exciting product launches and strategic promotions to maximise sales and brand visibility. About the Role: As the eCommerce Business Manager in the eCommerce UK team, you will take a leading role in shaping the impact of our onsite marketing and how customers engage with the Next website. Youâll take full ownership of our onsite advertising strategy, driving commercial success and unlocking meaningful, incremental sales growth. With your sharp commercial mindset and passion for fashion, youâll spot innovative ways to elevate ad performance while keeping our aesthetic polished and inspiring. Youâll lead high-impact projects, working closely with data science to refine targeting and uncover new opportunities for improvement, and partnering with marketing teams to brief standout assets and share insights across channels. Continually analysing performance, youâll fine-tune creatives, targeting, and placements to ensure every advert delivers maximum ROI - playing a pivotal role in taking our onsite marketing to new heights. What else is involved? You will manage the onsite advertising team (2 within the UK and 6 offshore). Review the commercial performance of onsite advertising, making data-driven decisions to maximise incremental sales growth and ROI. Optimise adverts end-to-end - refining design, content, placements, audience targeting and scaling the best-performing creatives. Run A/B tests and other optimisation initiatives to continually improve onsite advertising performance and the overall customer journey. You will work closely with digital marketing and product marketing teams, sharing learnings across channels and ensuring adverts reflect the latest sales performance and trend insights. You will partner with data science, design and development teams to drive improvements to targeting, creative quality and advert delivery. Load new adverts, set up audience targeting, and grow the volume of relevant onsite social content. Push the advert technology and onsite marketing channel forward, aiming to replicate the success and sophistication of offsite advertising. Regularly monitor KPIs such as incremental sales, conversion and ROI, providing weekly trading updates that highlight key issues and opportunities. Analyse reporting and data insights to identify trends, user behaviour changes, and opportunities to optimise the sales funnel, ensuring all decisions are commercially driven and focused on delivering sales and profit uplift. Set the direction for growth of onsite advertising and keep all stakeholders aligned on priorities and strategy. Collaborate across ecommerce UK, International and Total Platform trade teams to implement improvements and report back on successes and learnings. Own testing and optimisation techniques that elevate customer experience and drive performance. Stay informed about ecommerce trends, emerging technologies and competitor activity, providing recommendations to keep the site competitive. You adapt quickly to changes in the ecommerce landscape, trading patterns or user behaviour to maintain a competitive onsite marketing experience. Youâll be doing all this from our Leicestershire Head Office. Our offices are inspiring, yes. But we understand that life happens. So, weâre big on making sure your work, works for you which is why we offer flexible working. Bring your energy. Play to your strengths. Make things bigger and better than before. Letâs Take It On. About You: Proven experience within eCommerce and Marketing at senior level. Experience in collaborating with cross-functional teams and managing relationships with third-party platforms and vendors. Excellent communication skills with the ability to convey complex ideas to both technical and non-technical stakeholders. Familiarity with A/B testing methodologies and a commitment to continuous improvement. Ability to work in a fast-paced environment and adapt to changing priorities. Proficiency in using eCommerce platforms and analytics tools. A passion for delivering an exceptional shopping experience and a customer-centric mindset. Experience in line managing and leading a team. A keen interest in Fashion and Retail.