Account Manager 12-month fixed-term maternity cover contract. in London

About Index Exchange: Index Exchange is a global advertising supply-side platform enabling media owners to maximize the value of their content on any screen. As a trusted partner and ally, we connect leading experience makers with the world’s largest brands to ensure a quality experience for consumers. We’re a proud industry pioneer with over 20 years of experience accelerating the ad technology evolution. With our radically transparent business practices and dedication to total market efficiency, we’re committed to upholding the integrity of the programmatic ecosystem at large.

What’s it like to work at Index? Index is an exciting and fast-paced place to work. You'll be able to feed your ambition, lean into trust and transparency, and feel genuine support from your colleagues. We’re built on our core values and live them each day. They're not just buzzwords. We pride ourselves on our independence and openness, not only in our technology, but in our teams, too. Our diverse and inclusive culture celebrates how we can leverage our unique differences to help drive Index forward. We have more than 550 Indexers around the globe dedicated to building a safe and transparent marketplace that provides a trusted experience for consumers, and we’re looking for talented professionals to help take us to the next level.

Are you ready to join the programmatic evolution? Index Exchange is seeking an Account Manager to join our Buyer Services team in London, reporting to the Director, Buyer Account Management. In this role, you’ll partner with programmatic agencies and marketers that leverage Index Exchange’s technology through our Demand Side Platform integrations. You’ll build trusted relationships, deliver strategic guidance, and help customers maximise the value of the Index platform while identifying opportunities to grow existing partnerships.

Here’s What You’ll Be Doing:

• Become the day-to-day contact for a portfolio of agency and brand partners across the UK, delivering an exceptional customer experience while building long-term strategic relationships.
• Develop a strong understanding of your customers’ objectives, campaign performance and broader business priorities to identify new commercial opportunities and strengthen long-term partnerships.
• Partner closely with the Business Development team to identify opportunities to grow existing accounts through increased platform adoption, upselling, cross-selling and strategic account development.
• Provide proactive, data-driven insights and recommendations to improve campaign performance, maximise delivery, increase Index demand-sourced revenue and help customers achieve their business objectives.
• Collaborate with Sales, Technical Operations, Analytics, Product and Publisher teams to deliver the best possible outcomes for customers and resolve complex challenges.
• Act as a trusted advisor by sharing industry insights, marketplace trends and best practices that help customers maximise the value of the Index Exchange platform.
• Represent Index Exchange at client meetings, industry events and partner engagements to strengthen relationships and support continued account growth.

Here’s What You Need:

• 2–3+ years’ experience in digital media, including at least one year in a client-facing Account Management, Customer Success, Sales or Programmatic role.
• Good understanding of the programmatic advertising ecosystem, including SSPs, DSPs, agencies, publishers and programmatic deal types.
• Experience managing customer relationships, identifying opportunities to grow accounts and delivering excellent client service.
• Comfortable using data and campaign performance insights to make recommendations, solve customer challenges and influence commercial outcomes.
• Strong communication and relationship-building skills, with the ability to present confidently to both internal and external stakeholders.
• A collaborative mindset and the ability to work cross-functionally with Sales, Technical Operations, Product and Analytics teams.
• Highly organised, proactive and able to prioritise effectively in a fast-paced environment.
• Previous experience in Account Management or Sales is advantageous but not essential.

Why you’ll love working here:

• Comprehensive health, dental, and vision plans for you and your dependents.
• Paid time off, health days, and personal obligation days plus flexible work schedules.
• Competitive retirement matching plans.
• Equity packages.
• Generous parental leave available to birthing, non-birthing, and adoptive parents.
• Annual well-being allowance plus fitness discounts and group wellness activities.
• Employee assistance program.
• Mental health first aid program that provides an in-the-moment point of contact and reassurance.
• One day of volunteer time off per year and a donation-matching program.
• Monthly town halls and regular community-led team events.
• Multiple resources and programming to support continuous learning.
• A workplace that supports a diverse, equitable, and inclusive environment.

Equal employment opportunity: At Index Exchange, we believe that successful products are built by teams just as diverse as the audience who uses them. As such, we are committed to equal employment opportunities. We celebrate diversity of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or expression, or veteran status. Additionally, we realize that diversity is deeper than any status or classification—diversity is the human experience. For those who show grit, passion, and humility—Index will welcome you.

Accessibility for applicants with disabilities: Index Exchange welcomes and encourages individuals with disabilities to apply to work with us. If you require an accommodation, please share the details of your request and any information how we can assist you with the hiring recruiter when they contact you. Index Exchange will make reasonable efforts to ensure accommodation requests are met throughout the recruitment process.

Index everywhere, Index anywhere: Our corporate headquarters are in Toronto, with major offices in New York, Montreal, Kitchener, London, San Francisco, and many other global cities. As a major global advertising exchange, we are committed to operating as a tightly knit global team and embracing and empowering talent wherever our colleagues may be.