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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer, Advertising Engineering - **Company:** Roku, Inc. - **Location:** Manchester, UK (Remote available) - **Experience:** Expert - **Salary:** £45,461.0 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Airflow, Amazon Web Services, Data Analysis, Microsoft Azure, Big Data, Code Review, Computer Programming, Data as a Services, Information Engineering, Extract Transform Load (ETL), Data Systems, Cursor (Graphical User Interface Elements), DevOps, Python (Programming Language), Query Optimization, Scala (Programming Language), Software Engineering, SQL Databases, Toolchain, Data Storage Technologies, Sql Optimization, Delivery Pipeline, Multi-Agent Systems, Apache Spark, Backend, Build Management, Containerization, Kubernetes, Infrastructure Automation Frameworks, Information Technology, Data Management, Api Design, Terraform, Data Pipelines, Docker, Jenkins - **Published:** August 29, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5859773463 ## About the Role * Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience) * 8+ years of experience in software and/or data engineering with expertise in big data technologies such as Apache Spark and Apache Airflow * Advanced SQL skills, with expertise in query optimisation for large datasets * Expertise in developing APIs and robust backend services, with strong programming skills in Python, Java, and/or Scala * Exceptional problem-solving abilities and the capacity to work independently or collaboratively * Excellent verbal and written communication skills * Strong sense of ownership in driving projects from inception to user adoption * Experience with cloud platforms such as AWS, GCP, or Azure, and containerisation tools like Docker and Kubernetes (preferred) * Knowledge of CI/CD pipelines, DevOps practices, and infrastructure-as-code tools such as Jenkins and Terraform (preferred) * Experience with building agentic AI systems to automate decision-making and enhance analytics workflows (preferred) * Experience in AdTech and advertising data platforms (preferred) #LI-JB6What's Roku's approach to hybrid working? ## Description We are seeking a highly skilled Senior Software Engineer for this hybrid position which bridges software 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 architect and maintain production-grade data products and APIs, leveraging technologies such as Java/Scala, SQL, Spark, Airflow, and Kubernetes to deliver reliable, high-performance solutions. You will collaborate with cross-functional partners across Finance, Accounting, and Analytics to translate complex business requirements into robust technical solutions. The role involves driving data quality and operational excellence across the full lifecycle of data pipelines and backend services. You will also contribute to the team's AI-powered initiatives, helping to scale financial workflows and unlock actionable insights from diverse data assets. The successful candidate has a proven track record building high-scale data services and pipelines, with strong engineering rigor and a passion for continuous improvement. [Insert Pay Transparency Verbiage Here] How will I use AI at Roku? At Roku, we don't just use AI, we work with it. AI agents and smart tools help power drafts, analysis, and repetitive workflows, while our people bring direction, judgment, and accountability. We're looking for curious, adaptable builders who can show how they've used AI or automation to move faster, raise the bar, and scale their impact. We value your AI skills if have built fluency across the agentic engineering toolchain - coding harnesses like Claude Code or Cursor, MCP servers, custom skills, or agent frameworks. And you can describe projects where you shipped real work with these tools. You know how to drive an agent, verify its output, and ramp on an unfamiliar codebase with an agent helping you. What are the responsibilities of the role? Software Development * Design and build APIs and backend services using Scala and Java to support financial automation and data products * 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 * Optimise 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 minimise downtime and maximise efficiency Collaboration & Mentorship * Partner with analytics, software engineering, 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, Roku fosters an inclusive and collaborative environment where teams generally work in the office Monday through Thursday. 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