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About the Role

As a Customer Success Manager (CSM) at IAS, you will be a relationship manager, ad-tech consultant, cross-functional orchestrator, and strategic problem solver. You will independently manage a high-value book of direct advertiser and agency clients across CEE, with a strong focus on the DACH region. This role is for adaptable, resilient professionals who thrive in complexity, remain calm under high-stakes client pressure, and enjoy building structure out of ambiguity. You should be tech-forward and understand how to integrate AI tools into daily workflows, with a curiosity about AI's transformation of the digital advertising industry.

Responsibilities

Drive commercial and programmatic retention by securing renewals and unlocking expansion opportunities.
Proactively identify platform adoption gaps, optimize campaign delivery, and guide clients on maximizing ROI.
Command client rooms and high-stakes escalations, owning senior-level meetings, strategic performance reviews, and sensitive client escalations.
Master and translate complex ad-tech concepts, product mechanics, and technical anomalies into simple, actionable business value for clients.
Provide end-to-end account ownership for approximately 30 strategic accounts, managing the entire client lifecycle from onboarding to renewals.
Act as an internal pioneer by proactively coordinating with Product, Technical Client Operations, Sales Operations, and Finance to build workarounds and champion permanent solutions for uncompleted or siloed processes.

Requirements

Professional fluency in both German and English (written and verbal) is mandatory.
Solid, practical understanding of the digital advertising ecosystem, including programmatic buying mechanics (DSPs/SSPs), social platforms, CTV, and media holding group operations.
Proven track record of managing a large, high-pressure book of business with incomplete internal workflows, system gaps, and tight client deadlines.
Outstanding presentation and project coordination skills, with the ability to explain highly technical issues to non-technical, senior executive stakeholders.
Ability to dig into data, isolate campaign discrepancies, and transform analytics into a compelling narrative that proves ROI and defends contract renewals.
Ideally 3+ years in a highly technical Customer Success, Account Management, or Ad Operations role (e.g., at a media agency, DSP, SSP, publisher, or ad-tech provider).
Demonstrated success in driving revenue growth across an account portfolio.

Skills

Relationship management
Ad-tech consulting
Cross-functional orchestration
Strategic problem-solving
Adaptability
Resilience
Complexity management
Calmness under pressure
Structure building
Technical deep-dives
Commercial growth
AI integration
Agentic technologies understanding
Client management
Programmatic retention
Platform adoption optimization
ROI maximization
Meeting facilitation
Performance reviews
Client escalations
Technical understanding of ad-tech products
Data translation
Account lifecycle management
Onboarding
Technical integration
Campaign optimization
Quarterly Business Reviews (QBRs)
Internal process improvement
Cross-functional collaboration
Project coordination
Analytical skills
Commercial mindset
Revenue growth

Location

CEE (Central and Eastern Europe)
DACH region

Work Type

Hybrid

Experience Level

3+ years

About the Company

Integral Ad Science (IAS) is a leading global media measurement and optimization platform.
IAS delivers actionable data to drive superior results for advertisers, publishers, and media platforms.
IAS software ensures ads are seen by real people in safe and suitable environments.
IAS improves return on ad spend for advertisers and yield for publishers.
IAS's mission is to be the global benchmark for trust and transparency in digital media quality.

Equal Opportunity

IAS is an equal opportunity employer, committed to diversity and inclusiveness.
IAS will consider all qualified applicants without regard to race, color, nationality, gender, gender identity or expression, sexual orientation, religion, disability or age.
IAS strongly encourages women, people of color, members of the LGBTQIA community, people with disabilities, and veterans to apply.