Senior Data Engineer

Samba is an AI-powered media intelligence company on a mission to give marketers the complete picture of their audiences. Our AI indexes media consumption across millions of smart TVs and 2.5 billion web pages, combining that data with third-party signals through the Samba Knowledge Graph, a map of the real interests, behaviors, and purchase intent of 1.5 billion user profiles globally. Brands, agencies, publishers, and platforms use Samba to make smarter decisions across every stage of the marketing funnel. As a Senior Data Engineer, you will be responsible for leading the development of scalable, high-performance data pipelines and infrastructure that power Samba analytics and insights. You will play a critical role in designing and implementing architectural improvements, ensuring best practices, and mentoring a team of engineers. You will collaborate closely with Data Science, Analytics, and Product teams to deliver robust, production-ready data solutions that drive business impact. What You’ll Do Architectural Leadership: Lead the design and development of scalable, high-performance data pipelines and infrastructure that power Samba TV's analytics. Complex Problem Solving: Resolve complex technical issues in creative and effective ways, understanding the interrelationships of different disciplines. Production Dataset Management: Lead the design, build, and maintenance of high-scale production datasets. Ensure the delivery of versioned outputs and reliable customer-facing reports. Schema Evolution & Lifecycle: Manage the end-to-end lifecycle of data features - adding new attributes, updating business logic, and executing safe rollouts (staging → performance check → production), including complex backfills and reprocessing. Performance & Cost Engineering: Architect scalable and efficient solutions for data ingestion, transformation, and storage, ensuring performance, reliability, and security. Proactively drive down compute and storage costs. Incident Response & Debugging: Serve as a technical lead for production incidents. Investigate root causes, implement permanent fixes, and validate data recovery across the ecosystem. Cross-Functional Influence: Network with key contacts outside your own area of expertise and frequently advise others on complex matters. Mentorship: Guide the development of new policies and ideas while mentoring and guiding other engineers to foster a culture of technical excellence. Observability: Enhance monitoring and observability of data processes, improving debugging, error detection, and system reliability at scale. Who You Are Experience: Typically 8+ years of related experience with a Bachelor’s degree (or 6 years with a Master’s; 3 years with a PhD). Technical Mastery: Advanced knowledge of Python and deep understanding of distributed data processing frameworks like Apache Spark or PySpark. Orchestration Expertise: Must-have expertise in Apache Airflow and Databricks for orchestration and scalable data processing. Infrastructure: Extensive experience with cloud-based data infrastructure (AWS, GCP) and modern data lake architectures. Data Modeling: Strong knowledge of data modeling, database design, and query optimization for both relational and non-relational databases. Software Excellence: Proven track record of driving best practices for code quality, testing, and software design in a data engineering context. Communication: Ability to adapt your communication style and use persuasion when delivering messages that relate to the wider firm business. 312,000 zł - 395,000 zł a year Samba expects to offer a base salary between 312000 PLN - 395000 PLN per year for roles to be performed in Warsaw actual base salary offered will depend on various factors, including but not limited to, location, experience, and performance. Base salary is just one component of Samba total compensation package for employees. Other rewards may include bonuses, short-term incentives, and long-term incentives. In addition, Samba provides health insurance, wellness offerings, life and disability insurance, a retirement savings plan, paid holidays and paid time off (PTO), and other employee benefits. Equal Opportunity & Privacy Samba is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We strive to empower connection with one another, reflect the communities we serve, and tackle meaningful projects that make a real impact. Samba may collect personal information directly from you, as a job applicant, Samba may also receive personal information from third parties, for example, in connection with a background, employment or reference check, in accordance with the applicable law. For further details, please see Samba’s Applicant Privacy Policy. For residents of the EU, Samba Inc. is the data controller. #J-18808-Ljbffr