Senior Software Engineer – Data Management Platform in Salford

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. 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.

About the Team: The DMP team plays a critical role in Roku’s Advertising organization, leading initiatives around audience management that power decision-making across the advertising ecosystem. We develop and manage products that enable advanced segmentation and audience management for advertisers while meeting the operational needs of internal teams. We work closely with Product Managers, Machine Learning, Ad Sales, Ads Operations, and multiple groups within Advertising Engineering to deliver high-impact solutions. Looking ahead, we are exploring AI-driven capabilities to further enhance the effectiveness of advertising campaigns and improve operational efficiency of our platforms.

About the Role: We are seeking a highly skilled Senior Software Engineer with deep expertise in big data technologies, including Apache Spark and Apache Airflow. This hybrid position bridges software engineering and data engineering, requiring the ability to design, build, and maintain scalable systems for both application development and large-scale data processing. In this role, you will collaborate with cross-functional teams to architect and manage robust, production-grade data products and APIs that power critical capabilities across the advertising platform. You will work with technologies such as Apache Spark, Apache Airflow, ScyllaDB/Cassandra, Aerospike, Kubernetes, and SpringBoot to deliver reliable, high-performance solutions. The ideal candidate is a proactive, self-motivated professional with a strong track record in building high-scale data services and a dedication to delivering exceptional results.

What You’ll Be Doing:

• Software Development: Design and build APIs and backend services using Spring Boot to support data products and audience management workflows. Write clean, maintainable, and efficient code, ensuring adherence to best practices through code reviews.
• Big Data Engineering: Design, develop, and maintain data pipelines and ETL workflows using Apache Spark and Apache Airflow. Optimize data storage, retrieval, and processing systems to ensure reliability, scalability, and performance. Develop and fine-tune complex queries using Apache Spark for large-scale datasets. Monitor, troubleshoot, and improve data systems to minimize downtime and maximize efficiency.
• API and Platform Development: Design, develop, and maintain large scale, low latency API systems using SpringBoot and Kubernetes. Maintain NoSQL Infrastructure including ScyllaDB and Aerospike.
• Collaboration & Mentorship: Partner with the machine learning team, software engineers, and other teams to deliver integrated, high-quality solutions. Provide technical guidance and mentorship to junior engineers, promoting best practices in software and data engineering.

We’re Excited If You Have:

• 8+ years of experience in software and/or data engineering with expertise in big data technologies such as Apache Spark, Apache Airflow.
• Expertise with at least one of the following: ScyllaDB and Aerospike (preferred).
• 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 optimization 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 containerization tools like Docker and Kubernetes (preferred).
• Experience in AdTech, in advertising data platforms and audience management (preferred).
• Strong programming skills in Python, Java, and/or Scala (preferred).
• Knowledge of CI/CD pipelines, DevOps practices, and infrastructure-as-code tools (e.g., Jenkins & Terraform) (preferred).
• Expertise in data modeling, schema design, and data visualization tools.
• Experience with building Agentic AI systems to automate decision-making and enhance analytics workflows (preferred).
• Bachelor's degree in computer science, Engineering, or a related field (or equivalent experience).

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: Roku is committed to offering a diverse range of benefits as part of our compensation package to support our employees and their families. Our comprehensive benefits include global access to mental health and financial wellness support and resources. Local benefits include statutory and voluntary benefits which may include healthcare (medical, dental, and vision), life, accident, disability, commuter, and retirement options (401(k)/pension). Employees are supported in taking time off, in accordance with local leave policies and other personal needs to support their evolving work and life needs. It's important to note that not every benefit is available in all locations or for every role. For details specific to your location, please consult with your recruiter.

Accommodations: Roku welcomes applicants of all backgrounds and provides reasonable accommodations and adjustments in accordance with applicable law. If you require reasonable accommodation at any point in the hiring process, please direct your inquiries to EmployeeRelations@Roku.com.