Senior Backend EngineerUnder the FOX banner, we produce and distribute content through some of the world’s leading and most valued brands, including FOX News Media, FOX Sports, FOX Entertainment, FOX Television Stations, and Tubi Media Group. We empower a diverse range of creators to imagine and develop culturally significant content, while building an organization that thrives on creative ideas, operational expertise, and strategic thinking.AdRise is FOX's core ad tech platform, built to unify streaming and linear advertising across Tubi, FOX Sports, FOX News Media, and FOX Entertainment. Before AVOD became an industry standard, AdRise helped power Tubi's growth from the ground up by developing real-time ad delivery and dynamic targeting infrastructure that scaled to serve millions. That same tech foundation is now fueling FOX's cross-portfolio monetization strategy.We are rebuilding the ad stack for video by optimizing server-side delivery, building ML-driven targeting systems, and enabling content-personalized ad experiences that respond to what viewers actually watch. From real-time decisioning to data collaboration with AWS and Snowflake, we are creating a smarter, more dynamic ad tech ecosystem. The problems are complex, the visibility is high, and the platform is built for impact. If you want to work at the center of streaming monetization on systems that touch billions of impressions and shape the next generation of personalized advertising, this is your platform.ABOUT THE ROLEThe Ads Delivery team at AdRise builds the systems that turn advertiser budgets into effective, well-paced ad outcomes. As a Senior Backend Engineer, you will design, build, and operate distributed backend services that determine when, where, and how ads are delivered across a growing ecosystem of partner applications, including Tubi and FOX’s direct-to-consumer platforms.You will collaborate closely with Machine Learning, Data Science, and Ad Serving teams to implement algorithms for pacing, planning, and optimization, while continuously improving the scalability, reliability, and performance of our ad delivery platform. This role sits at the core of FOX’s monetization strategy, with direct impact on revenue and user experience at a massive scale.A SNAPSHOT OF YOUR RESPONSIBILITIESDesign and develop scalable, distributed backend services that power ad delivery across FOX’s streaming platformsBuild and optimize systems responsible for ad pacing, forecasting, and delivery decisioning in near real-timeCollaborate with ML and Data Science teams to productionize algorithms for campaign optimization and performanceImprove system performance, reliability, and scalability to support hundreds of billions of ad impressionsDevelop and maintain integrations with data pipelines, messaging systems, and real-time streaming frameworksOwn services end-to-end, including architecture, deployment, monitoring, and ongoing optimizationContribute to best practices in system design, code quality, and operational excellencePartner cross-functionally with product, infrastructure, and ad tech teams to evolve the platformWHAT YOU WILL NEEDMinimum five years of production experience designing and building scalable distributed systems using JVM languages such as Scala, Java, or Kotlin (Scala preferred)Strong experience with relational databases (e.g., Postgres), caching systems (e.g., Redis), and message brokers (e.g., Kafka or Kinesis)Experience building and operating near real-time, high-performance, fault-tolerant servicesHands-on experience with big data streaming frameworks such as Apache Spark or FlinkStrong understanding of distributed systems design, concurrency, and system trade-offsProven ownership mindset with a focus on building reliable, maintainable systemsAbility to thrive in a fast-paced environment and adapt to evolving technical challengesNICE TO HAVE, BUT NOT A DEALBREAKERExperience in ad tech, including ad serving, targeting, delivery, or measurement systemsFamiliarity with Kubernetes, Kustomize, Terraform, and modern infrastructure toolingAt least two years of experience working with Akka technologies, particularly clusteringExperience working on high-scale consumer-facing platforms or streaming ecosystemsExposure to ML-driven systems or data-intensive applications
