Back End Developer III

Job Summary The project includes: building 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. Job Details Location: Richfield, Minnesota Job Type: Contract Salary: $50 - 60 per hour Work Hours: 9am to 5pm Education: Bachelors Responsibilities Building 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 Modernizing frontend and backend architecture for scalability and maintainability Qualifications 7-10 years of backend development experience Strong Java/Kotlin and Spring Boot/WebFlux expertise Experience with microservices and REST API development Strong understanding of Kafka and event‑driven architecture Knowledge of distributed systems, concurrency, and async processing Strong SQL and PostgreSQL/MySQL performance optimization skills Experience with Kubernetes, CI/CD, and cloud‑native applications Production support, monitoring, and observability experience Strong debugging and problem‑solving skills Ability to independently own features/services end‑to‑end Good cross‑team communication and collaboration skills Experience with scalable and high‑throughput systems Bonus: AdTech, BigQuery/GCP, reactive programming, AI‑assisted development tools experience Equal Opportunity Employer Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status. #J-18808-Ljbffr