Senior Backend Engineer (AdTech / Campaign Management)

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.

What are the top five skills and number of years of experience required to perform this job?

• 5–8 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/Google Cloud Platform, reactive programming, AI-assisted development tools experience

It is a fully Onsite role in Minneapolis, MN, US.

Rate: $55/ hr on W2 Contract.