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.

• Location:
  
  Richfield, Minnesota
• Job Type: Contract
• Salary: $50 - 60 per hour
• Work Hours:
  
  9am to 5pm
• Education:
  
  Bachelors

• 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

• 7-10 years of backend development experience
• Strong Java/Kotlin and Spring Boot/Web Flux 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 Postgre
  
  SQL/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, Big Query/GCP, reactive programming, AI‑assisted development tools experience

Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status.