Senior Marketing Manager | Glossybox

About THG

We are THG, a global ecommerce group on a mission to be the global online leader in beauty and sports nutrition.

Our portfolio of leading retailers and brands such as LOOK FANTASTIC, Myprotein, ESPA, Perricone MD, and Cult Beauty form our two core businesses: THG Beauty and THG Nutrition.

From Manchester to New York, we’re powered by a team of over 2,500 people who work together, lead by example, and think BIG.

With us, you’ll go further, faster. What are you waiting for?

We know that beauty isn’t one-size-fits-all. Our portfolio of leading retailers and iconic beauty brands caters to everyone, everywhere, empowering customers all over the world to look and feel fantastic.

By combining our portfolio of owned brands with a marketplace for over 1,300 third‑party beauty brands through online retail sites LOOK FANTASTIC, Cult Beauty, and Dermstore, THG Beauty’s ambition is to be the global digital partner of choice across the beauty industry, supporting the channel shift to online.

THG Beauty’s breadth of relationships is unique to the beauty market; it engages with brands as a retailer, a brand owner, and a product developer and manufacturer, making it the industry’s digital strategic leader.

GLOSSYBOX is a leading beauty box subscription service. Every month we create a unique journey for our subscribers. Our specialist team works endlessly to bring the best in beauty discovery as well as the latest tips, tricks and trends for them to trial. GLOSSYBOX is the perfect treat where every month our subscribers receive a beautifully wrapped GLOSSYBOX filled with 5 surprise beauty treats, we have created a 360° experience that transcends beyond just the box with expert beauty advice and features from the industry.

The Senior Marketing Manager will own the integrated marketing strategy, encompassing both brand‑building activity and performance marketing. You will be responsible for developing and optimising the channel mix, ensuring all activity drives growth, retention, and brand equity. Working closely with the General Manager, you will own the marketing budget, allocation and reporting, while managing key internal and external relationships to deliver best‑in‑class marketing performance.

• Develop, manage and deliver the integrated marketing plan across brand and performance channels.
• Build and optimise the channel mix (paid social, search, display, affiliates, email/CRM, influencer, PR, partnerships, content and offline).
• Collaborate with the commercial marketing team to ensure this plan is integrated within relevant plans.
• Own the annual and seasonal marketing calendar, ensuring campaigns are aligned with commercial goals and customer insights.

• Drive measurable new subscriber and new customer acquisition, engagement and retention through multi‑channel activity.
• Collaborate with the brand and creative teams on storytelling, content and campaign development.
• Partner with paid media agencies to shape and optimise performance marketing strategies, ensuring channels deliver strong ROI.
• Monitor market trends, customer insights and competitor activity to continuously refine approach.

• Support the General Manager with the overall marketing budget across brand and performance channels.
• Allocate spend effectively, track budgets and report regularly on performance and ROI.
• Provide insight‑led recommendations for optimising spend across channels.

• Support the senior brand executive in coordinating the in‑house studio and creative teams to brief and deliver campaign assets.
• Manage CRM, influencer and content executives (3 direct reports) to ensure alignment across acquisition and retention channels.
• Manage relationships with external agencies and partners, ensuring strong delivery, accountability and results.

• 6+ years’ marketing experience, ideally within beauty, fashion, lifestyle or consumer subscription businesses.
• Proven track record managing both brand and performance marketing…