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Marketing Data Engineer Miejsce pracy: Warszawa Technologies we use Expected SQL Python AWS Your responsibilities We are looking for an experienced SQL, Python, AWS Backend Developer and Data Architect driving MarTech and analytics innovation. As a Marketing Data Engineer at CMC Markets, you will play a central role in building and optimizing our marketing and analytics data ecosystem. You’ll design high-performance data pipelines, architect integrations between marketing platforms, and enable advanced analytics across attribution, audience segmentation, and Marketing Mix Modelling (MMM). Your mission: Engineer scalable, reliable data systems that drive marketing intelligence, attribution, and automation across the CMC Markets MarTech stack. Key Responsibilities: Architect and build scalable data systems •Design and implement data pipelines and backend services connecting marketing, analytics, and CRM platforms using SQL, Python, and AWS technologies. Develop and optimize MarTech integrations •Build and maintain APIs and ETL processes that unify data across key platforms including BigQuery, Braze, mParticle (CDP), and major ad networks (Google, Meta, LinkedIn, TikTok). Advance marketing analytics and attribution modelling •Create robust data models and pipelines that enable multi-touch attribution, customer journey analysis, and campaign ROI measurement. Support Marketing Mix Modelling (MMM) •Develop and maintain structured datasets and data ingestion processes to support econometric modelling and media effectiveness analysis. Automate and orchestrate workflows •Implement data automation solutions to streamline audience activation, tagging, and campaign reporting, ensuring consistency and scalability across markets. Collaborate cross-functionally •Partner with marketing, data science, and engineering teams to ensure MarTech data infrastructure aligns with business goals and supports experimentation, personalization, and insights delivery. Ensure data quality and governance •Monitor, validate, and document data sources, ensuring accuracy, reliability, and compliance with internal data standards. Our requirements •Proven experience in data engineering, backend development, or Martech data architecture roles. •Advanced proficiency in SQL and Python, including data modeling, API integration, and workflow automation. •Hands-on experience with AWS services (Lambda, S3, Redshift, Glue, or Step Functions). •Strong understanding of marketing data ecosystems, including analytics, attribution, and customer data platforms (preferably Braze). •Familiarity with BigQuery or similar large-scale data warehouses. •Experience building or maintaining data pipelines for analytics, measurement, or campaign orchestration. •Excellent problem-solving and debugging skills, with attention to performance and scalability. •Fluent in English (C1) What we offer •Brand new office space on Emilii Plater •Life assurance •Time off for a charitable activity (one day per annum) •Phantom Shares Scheme •20/26 annual leave days – dependent on experience •Birthday leave •Additional leave 2 days •Private healthcare - Luxmed •Social meetings/dinners •PPK private pension •Multisport (gives you free access to over 5,500 sports facilities across Poland) Benefits sharing the costs of sports activities private medical care life insurance integration events birthday celebration charity initiatives extra leave Phantom Shares Scheme PPK CMC Markets is an equal opportunities employer and positively encourages applications from suitably qualified and eligible candidates regardless of gender, sexual orientation, marital or civil partner status, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability or age. CMC Markets CMC Markets is one of the world’s first ever fin-tech companies and was launched in 1989 to break down the barriers of financial trading and make trading accessible to everyone. Our mission is to use our award-winning, Next Generation trading platform and unparalleled client service to empower millions of people to have the best trading experience out there. Our clients can trade on thousands of instruments using the best technology, supported by sophisticated charting, competitive pricing and automated execution. Were trusted by investors globally, but also by banks, brokers, funds and trading desks though our top-tier liquidity institutional offering, enabling these businesses to expand into new markets and increase revenue potential. We were recently listed on the FTSE250, and our business continues to go from strength to strength as we continue to invest in our technology and our people.