Senior Client Success Manager in London

Innovid is the leading independent omnichannel ad tech platform, empowering marketers to create, deliver, measure, and optimize ad-supported experiences that people love. In 2025, Innovid and Flashtalking merged to create a transparent, scalable alternative to big-tech, walled-gardens, and point solutions across CTV, digital, linear, and social channels. As part of Mediaocean, Innovid is tied into the industry’s core ad infrastructure for omnichannel planning, buying, and billing. We are proud to lead the industry with our innovation, intelligence, and independence as the company best-suited to power the future of advertising.

Join us to lead complex, high-value accounts with a focus on long-term growth, cross-functional alignment, and operational excellence. Sitting within our commercial organisation in London, this role is dedicated to driving the expansion and success of our Social Ads Manager product across the UK/EMEA market. At this level, you will play a pivotal role in driving account expansion, guiding strategic planning, and ensuring clients realize the full commercial and operational value of the Innovid platform.

As a subject matter expert in social marketing, you will manage your own portfolio of business to protect and grow revenue. You will work closely with Sales and Sales Engineering on cross-sell opportunities and multi-solution adoption, while partnering directly with Product on feature launches, enhancements, and client communication. Beyond individual account management, your work will shape how teams deliver across the broader CS organisation through leading cross-functional workstreams and cultivating key stakeholder relationships.

The Impact You'll Make:

• Strategic Account Leadership & Growth: Lead complex, high-value client accounts, owning long-term account growth plans and ensuring clients maximize value from our Social Ads Manager platform.
• Commercial Opportunities & Renewals: Identify and drive commercial growth opportunities—owning account renewals in partnership with Client Success leadership, and driving multi-solution adoption and revenue expansion.
• Sales & Sales Engineering Alignment: Collaborate closely with Sales and Sales Engineering on cross-sell opportunities, pitching social capabilities to existing accounts and converting client needs into winning commercial strategies.
• Social Marketing Expertise: Serve as a trusted advisor and social marketing expert, translating social campaign performance and platform capabilities into actionable business insights and strategic growth plans.
• Product Partnership & Communication: Work closely with the Product team on upcoming feature launches and platform enhancements, ensuring seamless client rollouts and effective product messaging.
• Process Improvement & Cross-Functional Workstreams: Lead the implementation of strategic client initiatives, guide process improvements, and spearhead cross-functional workstreams that elevate execution and client experience across the broader CS org.
• Complex Billing & Operational Resolution: Act as a key partner in resolving complex billing issues—collaborating across internal teams to align timelines, delivery, and invoicing, while refining best practices for billing accuracy and consistency.
• Executive Alignment & QBRs: Lead high-level client discussions, QBRs, and executive engagements to articulate strategic value, surface growth opportunities, and mitigate churn risks early.

What You'll Bring:

• Social Marketing Expertise: Deep, fluent expertise in paid social channels, ad formats, and the broader social advertising landscape.
• Commercial & Strategic Acumen: Proven track record of managing a high-value portfolio in a commercial environment, with demonstrated success in driving renewals, revenue expansion, and cross-selling.
• Cross-Functional Leadership: Strong experience collaborating with Sales, Sales Engineering, and Product teams to drive multi-solution adoption and product strategy alignment.
• Organizational & Operational Impact: Ability to lead cross-functional workstreams, establish best practices, and improve operational workflows across teams.
• Stakeholder & Executive Management: Exceptional communication, negotiation, and relationship-building skills to influence senior brand/agency stakeholders and navigate complex business discussions.
• Analytical & Problem-Solving Depth: High level of comfort with data for strategic storytelling, performance analysis, and resolving complex operational or billing challenges.
• Self-Directed & Market-Aware: A proactive leader with strong ownership, capable of driving impact at scale across the UK and EMEA markets.

What We'll Offer:

• Flexible Working (Hybrid)
• 27 days annual leave plus bank holidays
• Private Medical Health Insurance
• Pensions Scheme & Life Insurance
• Budget for professional development costs
• Season Ticket Loan Scheme
• Cycle to work scheme
• Give as you earn
• Eye test & occupational glasses reimbursement
• Classpass
• Nursery Scheme
• Employee Assistance Programme
• Professional development opportunities within our Learning & Development programs

All of these benefits/perks are effective on the date of hire. There is no such thing as the perfect resume, or someone that checks every box. At Innovid, we are generous with our time and knowledge, and always ready to teach. So however you identify and whatever background you bring with you, please apply if this is a role that would make you excited to come into work every day and add to Innovid.

Equal Opportunity Employer: Innovid is an equal opportunity employer, committed to our diversity and inclusiveness. We consider all qualified applicants regardless of race, color, nationality, gender, gender identity or expression, sexual orientation, religion, disability or age. We strongly encourage women, people of color, members of the LGBTQIA community, people with disabilities and veterans to apply. We are actively working to be an anti-racist organization. We're committing to creating an inclusive and equitable workplace for all of our employees.