Senior Data Analyst

N-iX is a global software development service company with over 2,400 professionals across 40+ countries, working on projects for industry leaders and Fortune 500 companies. The client is a leading European online car marketplace serving over 30 million monthly users across 18 countries.

• 5+ years experience in marketing analytics, preferably in online marketplaces or B2C/B2B digital businesses.
• Experience with large-scale data integration projects, mergers and acquisitions, data migration, KPI harmonization, and stakeholder management.
• Proficiency in SQL and hands-on experience building data pipelines and ELT workflows using tools such as Airflow and dbt.
• Familiarity with cloud data platforms such as BigQuery, Redshift, or Snowflake.
• Strong experience with BI and dashboarding tools such as Tableau, Amazon QuickSight, Power BI, and understanding of data visualization best practices.
• Deep understanding of Google Analytics, mobile measurement platforms (Adjust, AppsFlyer), and major advertising platforms (Google Ads, Meta, Criteo).
• Proven ability to lead cross-functional analytics initiatives and manage complex stakeholder environments.
• Proactive approach to integrating AI tools into analytical workflows.
• Excellent verbal and written English skills.

Nice to have:

• Experience with web and app attribution models.
• Experience with Amazon QuickSight.
• Experience with Google Search Console and Google Tag Manager.
• Experience working with advertising platforms and Mobile Measurement Platforms (MMPs).

• Support strategic integration and M&A initiatives by assessing and integrating marketing data, aligning KPI definitions, attribution methodologies, and reporting.
• Partner with business, product, engineering, and analytics teams across organizations to identify integration requirements and establish scalable reporting solutions.
• Design and implement scalable data models and pipelines within the Data Lake to manage marketing data across channels and acquired businesses.
• Build and maintain dashboards to monitor demand, user acquisition, and marketing efficiency using data visualization best practices.
• Collaborate with analysts to evaluate performance across platforms including Google Analytics, Adjust, AppsFlyer, Google Ads, Meta, and Criteo and translate findings into actionable business recommendations.
• Contribute technical expertise and lead cross-functional projects managing timelines, risks, and stakeholder communication.
• Leverage AI tools and automation to improve analytical work efficiency, quality, and scale.

N-iX Krakow, ​Zabłocie Business Park business centre, Zabłocie 43A, 30-70