Client Services Manager (AdTech)

Location: Cologne, Germany; hybrid workplace with three baseline office days per week

Company

Global adtech organization providing persona-based audience activation and measurable campaign outcomes for brands and agencies.

What you will do

• Manage a portfolio of client accounts and serve as the primary point of contact.
• Lead client onboarding, campaign launches, and ongoing account management.
• Set up, manage, and optimize programmatic and managed campaigns against agreed KPIs.
• Monitor pacing, performance, and account health while addressing risks and issues.
• Deliver client training, performance reporting, post-campaign analysis, and presentations.
• Identify optimization, upsell, and expansion opportunities while coordinating with Sales, Product, Engineering, and other internal teams.

Requirements

• Fluent German at C1 level or above is mandatory.
• At least 2–3 years of experience in client account management, account management, ad operations, or customer success.
• Understanding of digital advertising, campaign management, and programmatic media.
• Ability to manage multiple campaigns or accounts in a fast-paced environment.
• Strong analytical, problem-solving, communication, relationship-building, organizational, and collaboration skills.

Nice to have

• Knowledge of DSPs, SSPs, and the bidstream.
• Experience with DCM, Adform, IAS, DoubleVerify, MOAT, DV360, The Trade Desk, or Xandr.
• Experience with Google Tag Manager or Adobe Launch.

Culture & Benefits

• Hybrid working model centered on two core in-office collaboration days.
• One additional office day of choice to support flexibility and personal balance.
• Flexible working arrangements across the remaining days of the week.
• Inclusive environment focused on equal opportunity, belonging, and psychological safety.