Java Back End Developer

Title: Java Back End DeveloperDuration: 6+ MonthsLocation: Richfield, MNTell us about your department: We are Ads organization at Best Buy, where we build and manage the MyAds platform used by sellers and internal teams to create, manage, and monitor advertising campaigns across Best Buy s digital ecosystem.Our department focuses on retail media and advertising technology, including Sponsored Products and onsite display advertising. We own systems that support campaign management, bidding, reporting, spend tracking, billing integrations, and seller-facing user experiences.The Project Includesbuilding and enhancing seller-facing campaign management workflows,integrating with external advertising platforms such as Criteo and ad-serving systems,implementing reporting, spend tracking, and billing event pipelines,improving campaign synchronization and product eligibility systems,and modernizing frontend and backend architecture for scalability and maintainability.What are the top five skills and number of years of experience required to perform this job?5 8 years of backend development experienceStrong Java/Kotlin and Spring Boot/WebFlux expertiseExperience with microservices and REST API developmentStrong understanding of Kafka and event-driven architectureKnowledge of distributed systems, concurrency, and async processingStrong SQL and PostgreSQL/MySQL performance optimization skillsExperience with Kubernetes, CI/CD, and cloud-native applicationsProduction support, monitoring, and observability experienceStrong debugging and problem-solving skillsAbility to independently own features/services end-to-endGood cross-team communication and collaboration skillsExperience with scalable and high-throughput systemsBonus: AdTech, BigQuery/GCP, reactive programming, AI-assisted development tools experience