Senior Performance Marketing Manager (m|w|d) - CSS

Our performance marketing team manages all paid and directly measurable marketing campaigns, making it one of the driving forces behind our current growth. Data-driven work is a basic requirement in the team, and we are always one step ahead of market trends.

As part of the SEM team, you will gain deep insights into SEA automation at one of Europe's top e-commerce players. You can expect to join a highly motivated and very successful team. In this role, you will take on hands-on technical responsibility for our Google Shopping and CSS activities, drive innovation, and increase the efficiency of our paid search channels using data and technology.

The position is available full-time or part-time.

About your new role

• You will take on hands-on technical responsibility for the planning, development, and further development of our Google Shopping and CSS campaigns (setup, structure, scaling, performance).
• You will manage budgets and KPIs, identify growth drivers, and derive concrete measures to increase performance and efficiency.
• You will be responsible for continuous performance monitoring and the operational implementation of optimizations (testing, iterations, rollouts).
• You will develop optimization approaches and ensure continuous tracking, ongoing analysis, and meaningful reporting.
• You will drive topics related to Google Merchant Center & feed quality (e.g., data quality, attributes, rules, diagnostics, policies) and work closely with relevant interfaces.
• You will test hypotheses through structured tests, substantiate them with data, and establish learnings as best practices within the team.
• You will be the technical contact person for Shopping/CSS, advise internal stakeholders, and implement market/platform trends.

Skills & Requirements

• Several years of experience in performance marketing with a focus on Google Shopping (end-to-end ownership, hands-on implementation).
• Excellent CSS expertise and a deep understanding of the mechanics and levers in the shopping ecosystem.
• High level of confidence in Google Merchant Center and all feed and data topics (data quality, attributes, rules, diagnostics, policies).
• Strong analytical skills: clear KPI logic, structured testing, prioritization, and implementation.
• High technical affinity and experience with analysis, tracking, and ideally feed management tools.
• Ownership mentality: You take responsibility and drive issues forward independently, pragmatically, and with a strong focus on implementation.
• Very good written and spoken German and English.
• Nice to have: agency experience, PMAX/shopping automation, incrementality experiments, SQL/BigQuery, and dashboarding (Looker, PowerBI, Tableau).

You don't meet all the criteria? Don't worry, we are looking for employees who impress us with their personality and are motivated to give their all together with their team!

At idealo you can expect

• You want to further your education? We take your personal development goals seriously and, in addition to our idealo Learning Hub, eLearning offerings (e.g., Udemy), coaching & mediation, we also offer you the opportunity to benefit individually from additional learning and development budget.
• And what about the office? Our office in the heart of Berlin offers free organic breakfast, excellent free lunch (vegan and vegetarian), as well as free coffee, lemonades and after-work beer, in addition to the "standard foosball". It also has a fabulous rooftop terrace with view of the whole of Berlin where you can network with colleagues from our group of companies.
• In need of additional support in any areas of your life? We offer free counseling and support in all areas of life (professional, private, family, health, etc.) in cooperation with the pme-Familienservice .
• You want full flexibility on your way to work and beyond? No problem with a job bike or Deutschlandticket - and it's environmentally friendly, too!
• Want to keep yourself fit? We offer many different fitness and sports options, such as an Urban Sports or Gympass membership, to suit your personal needs.
• And what else is there? Of course, success must be celebrated! In addition to team events, you can also expect big company events and other moments of organized connection with others in the company and your team throughout the year!

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