Account Manager - AdTech & Programmatic

London, UK

Hybrid Schedule (M/F remote, T/W/TH in-office)

At Magnite, we cultivate an environment of continuous growth and collaboration. Our work impacts what millions of people read, watch, and buy, and we’re looking for people to help us tackle that responsibility with creativity and focus.  Magnite (NASDAQ: MGNI) is the world’s largest independent sell-side advertising platform. Publishers use our technology to monetize their content across all screens and formats including CTV / streaming, online video, display, and audio. Our tech fuels billions of transactions per day!

An Account Manager at Magnite plays a key role in ensuring the overall success of a defined book of business of publisher accounts. The Account Manager is responsible for delivering value to publishers through growth, transparency, and efficiency while leveraging technical expertise to troubleshoot and resolve challenges. This role will be based in London.

In this role you will:  

Serve as the primary technical and account servicing point of contact for a portfolio of Magnite’s omnichannel supply partners, providing proactive troubleshooting and issue resolution

Drive key initiatives across a defined book of business to ensure accounts are optimised and transacting to their full potential: best practice adoption for onboarding/Seller setup, integrations, and inventory management

Analyse and interpret performance data to deliver actionable insights, optimisation recommendations, and revenue-driving strategies to publisher clients

Collaborate with internal teams (Account Directors, Revenue Solutions, Platform Solutions, and Product Management) to resolve technical issues, define solutions, and drive platform enhancements that improve publisher outcomes.

Have oversight of delivery, measurement, reporting, and integration processes; contribute to strategy through weekly, monthly, and ad hoc client reports

Maintain and expand an in-depth knowledge of the programmatic ecosystem and emerging ad tech developments (e.g., GDPR compliance, header bidding, ad exchanges) to identify client opportunities and challenges

Troubleshoot and resolve technical and integration issues, working closely with internal stakeholders to ensure swift resolution

Actively contribute to team-wide growth initiatives, process improvements, and knowledge sharing

Participate in client meetings, including product overview sessions, QBRs, and lead weekly/monthly calls

Manage  a portfolio of Tier 2 accounts with a focus on technical optimisation and revenue generation.

We’re looking for someone with: 

Proven experience managing online advertising accounts with a strong technical focus (ideally working for an SSP, Ad Server, DSP, or large web publisher)

A solid understanding of the online advertising ecosystem, including GDPR, ad serving, ad exchanges, header bidding, and online ad technologies designed to drive publisher value

Strong technical troubleshooting skills with experience diagnosing and resolving ad delivery, integration, or platform-related issues.

A demonstrated ability to translate complex technical concepts into actionable recommendations for both technical and non-technical stakeholders

Advanced proficiency in spreadsheets (MS Excel), word processing (MS Word), presentation tools (PowerPoint), and CRM systems (Salesforce).

Strong organisational skills and attention to detail

An analytical mindset with a passion for problem-solving and identifying opportunities for optimisation

An ability to adapt and be flexible in a fast-paced, ever-changing environment

Confidence in presenting technical and business concepts in written and verbal formats

A collaborative mindset and a willingness to share knowledge across teams

An interest in and curiosity about the programmatic advertising industry, staying informed about the latest trends and developments

Total Rewards Include

Comprehensive Perks and Benefits: 

Equity and Employee Stock Purchase Plan

​Holiday Breaks and Quarterly Wellness Days

Family-Focused Benefits and Parental Leave 

Private Medical Insurance  

Competitive Pension Plan

Mobile Phone Subsidy

Fitness and Wellness Reimbursement

Company Culture: 

We believe collaboration is essential to success. Magnite’s hybrid schedule includes two days worked remotely (Monday and Friday) and three days on-site (Tuesday, Wednesday and Thursday). Our offices provide lunches, beverages, snacks, training and development, and office events to support your work week.  We also understand you have appointments, families, hobbies, and other commitments. Magnite strives to maintain a healthy work/life integration for all employees so you can bring your best every day - both at work and at home.

Magnite Invests in You: 

Career Development Initiatives and a Career Growth Framework

Culture and Inclusion Programs

Bonusly Peer-to-Peer Recognition Program

Community Service and Volunteer Events

Company-Matched Charitable Contributions

Wellness Coach and Mental Health Support

About Us

The world's leading agencies and brands trust our platform to access brand-safe, high-quality ad inventory and execute billions of advertising transactions each month. Anchored in bustling New York City, sunny Los Angeles, mile high Denver, historic London, and down under in Sydney, Magnite has offices across North America, EMEA, LATAM, and APAC.

Our DEI Commitment: To establish Magnite as a thought leader by diversifying voices within Magnite, cultivating a culture in which employees feel safe as their authentic selves, and by investing in strategies to support Magnite’s local communities.

Want to learn more about us?  

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