Senior Back End Developer

Position

Senior Back End Developer III - AdTech Focus

Location

Richfield, MN (Hybrid - 1-2 days onsite per week preferred; remote considered)

Employment Type

Contract (7-12+ Months)

### Project Scope

• Enhance seller-facing campaign management workflows.
• Integrate with external advertising platforms (e.g., Criteo) and ad-serving systems.
• Implement reporting, spend tracking, and billing event pipelines.
• Improve campaign synchronization and product eligibility systems.
• Modernize frontend and backend architecture for scalability and maintainability.

### Key Skills & Experience

• 7-10 years of backend development experience.
• Strong expertise in Java/Kotlin and Spring Boot/WebFlux.
• Hands-on experience with microservices and REST API development.
• Deep understanding of Kafka and event-driven architecture.
• Knowledge of distributed systems, concurrency, and asynchronous processing.
• Strong SQL skills with PostgreSQL/MySQL performance optimization.
• Experience with Kubernetes, CI/CD, and cloud-native applications.
• Production support, monitoring, and observability expertise.
• Strong debugging, problem-solving, and cross-team collaboration skills.
• Ability to independently own features/services end-to-end.
• Experience building scalable, high-throughput systems.

Bonus Skills

• AdTech domain experience.
• BigQuery/GCP exposure.
• Reactive programming.
• Familiarity with AI-assisted development tools.