Senior Data Engineer - Advertising Engineering

About the role

The Data Foundations team plays a critical role in supporting Roku Ads business intelligence and analytics. The team is responsible for developing and managing foundational datasets designed to serve the operational and analytical needs of the broader organisation. The team's mission is carried out through three focus areas: acting as the interface between data producers and consumers, simplifying data architecture, and creating tools in a standardised way. We are seeking a talented and experienced Senior Software Engineer with a strong background in big data technologies, including Apache Spark and Apache Airflow. This hybrid role bridges software and data engineering, requiring expertise in designing, building, and maintaining scalable systems for both application development and data processing. You will collaborate with cross-functional teams to design and manage robust, production-grade, large-scale data systems. The ideal candidate is a proactive self-starter with a deep understanding of high-scale data services and a commitment to excellence.

Responsibilities

• Big Data Engineering:
• Design, develop, and maintain data pipelines and ETL workflows using Apache Spark, Apache Airflow.
• Optimise data storage, retrieval, and processing systems to ensure reliability, scalability, and performance.
• Develop and fine-tune complex queries and data processing jobs for large-scale datasets.
• Monitor, troubleshoot, and improve data systems for minimal downtime and maximum efficiency.
• Software Development:
• Write clean, maintainable, and efficient code, ensuring adherence to best practices through code reviews.
• Collaboration & Mentorship:
• Partner with data scientists, software engineers, and other teams to deliver integrated, high-quality solutions.
• Provide technical guidance and mentorship to junior engineers, promoting best practices in data engineering.
• AI-augmented engineering & intelligent data interfaces:
• Apply modern AI-assisted development practices responsibly (for example assisted code review, test generation, and documentation) while maintaining production quality, security, and compliance standards.
• Design and evolve semantic search and retrieval over internal metadata (datasets, lineage, dashboards, runbooks): embeddings, indexing, and guardrailed query interfaces where they improve engineer and analyst productivity.
• Stay current on responsible AI expectations relevant to advertising data: privacy, PII handling, access control, auditability, and human-in-the-loop review for high-risk automation.
• We're excited if you have
• Bachelor's degree in computer science, Engineering, or a related field (or equivalent experience).
• 10+ years of experience in software and/or data engineering with expertise in big data technologies such as Apache Spark, Apache Airflow and Trino.
• Strong understanding of SOLID principles and distributed systems architecture.
• Proven experience in distributed data processing, data warehousing, and real-time data pipelines.
• Advanced SQL skills, with expertise in query optimisation for large datasets.
• Exceptional problem-solving abilities and the capacity to work independently or collaboratively.
• Excellent verbal and written communication skills.
• Experience with cloud platforms such as AWS, GCP, or Azure, and containerisation tools like Docker and Kubernetes. (preferred)
• Familiarity with additional big data technologies, including Hadoop, Kafka, and Trino. (preferred)
• Strong programming skills in Python, Java, or Scala. (preferred)
• Knowledge of CI/CD pipelines, DevOps practices, and infrastructure-as-code tools (e.g., Terraform). (preferred)
• Expertise in data modelling, schema design, and data visualisation tools. (preferred)
• #LI-JB6
• Our Hybrid Work Approach
• Roku fosters an inclusive and collaborative environment where teams work in the office Monday through Thursday. Fridays are flexible for remote work except for employees whose roles are required to be in the office five days a week or employees who are in offices with a five day in office policy.

Benefits

Additional Information

Teamwork makes the stream work. Roku is changing how the world watches TV Roku is the #1 TV streaming platform in the U.S., Canada, and Mexico, and we've set our sights on powering every television in the world. Roku pioneered streaming to the TV. Our mission is to be the TV streaming platform that connects the entire TV ecosystem. We connect consumers to the content they love, enable content publishers to build and monetize large audiences, and provide advertisers unique capabilities to engage consumers. From your first day at Roku, you'll make a valuable - and valued - contribution. We're a fast-growing public company where no one is a bystander. We offer you the opportunity to delight millions of TV streamers around the world while gaining meaningful experience across a variety of disciplines.

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