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Posted Jun 6, 2026

[Remote] Customer Success Manager- Media Buyers (m/f/d)

Note: The job is a remote job and is open to candidates in USA. Kayzen is a mobile demand-side platform dedicated to democratizing programmatic advertising. The Customer Success Manager will drive customer satisfaction, foster long-term relationships, and contribute to the company's growth by managing client success and optimizing campaigns. Responsibilities • Form a deep understanding of the client’s business & goals • Provide DSP advisory and strategic consultation from the onboarding phase • Maintain detailed internal documentation of client information (Hubspot), interactions (call notes), feature requests (product wishlist), and campaign strategies • Conduct engaging and informative Quarterly Business Reviews focusing on learnings, growth opportunities, and evangelizing on product roadmap • Co-manage and optimize campaigns with the Client or Trading team, analyzing aggregate performance and log-level data to improve strategies • Report on account progress weekly / bi-weekly to internal and external stakeholders (client, PSS Lead, Product teams, etc) • Set and achieve monthly and quarterly growth and milestone targets together with your Team Lead • Owning end-to-end client success and results through proactive optimizations, troubleshooting, and coordination • Proactively identify and address emerging client needs • Work closely with the product team on enhancements based on client feedback • Efficiently troubleshoot issues and communicate them to the product and technical teams • Provide regular feedback to management about client needs, market & competitor intelligence Skills • 2+ years of experience managing performance-driven web clients – must-have • Hands-on experience with programmatic or digital advertising platforms • Proven ability to build and drive processes that truly move the needle for clients • Capable of working independently and collaboratively • Strong analytical skills: able to dig into data, spot trends, and turn insights into action • A proactive mindset: you're comfortable tackling challenges and finding solutions quickly • Attention to detail • In-Depth Mastery of Kayzen DSP for Client Success • Strategic Client Management and Campaign Excellence • Leading in Industry Knowledge and Trends • Client Advocacy and Relationship Building Benefits • Exceptional career growth and learning opportunity • A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market • Direct, day-to-day work experience with the management • A fun, driven, and multinational team located across Germany, India, UK, Argentina, Ukraine, Turkey, Spain and many more countries • A flexible work-from-home arrangement • A 500-dollar home-office setup budget • A 1000-dollar annual learning and development budget Company Overview • SaaS enterprise-level software powering mobile advertisers to take programmatic in-house. It was founded in 2018, and is headquartered in Berlin, Berlin, DEU, with a workforce of 51-200 employees. Its website is https://www.kayzen.io.