KellyMitchell Group · 12 hours ago
Java Springboot Developer
Hopkins, MN
Contract
Onsite
Senior Level, Lead/Staff
$48/hr - $69/hr
10+ years expKellyMitchell Group is seeking a Java Springboot Developer to join their team in Hopkins, Minnesota. The role involves designing, developing, and maintaining RESTful microservices, as well as implementing cloud-native services and event-driven architectures.
Human ResourcesInformation TechnologyStaffing Agency
Responsibilities
Design, develop, and maintain RESTful microservices using Java 17+ and Spring Boot 3.x
Build distributed, high-throughput systems using Apache Cassandra, including data modeling and query optimization
Develop and deploy cloud-native services on Microsoft Azure such as: AKS, Azure Functions and Service Bus
Implement event-driven architectures using Kafka, RabbitMQ, or Azure Event Hubs
Apply microservices patterns such as API Gateway, Circuit Breakers, Service Discovery, and Distributed Tracing
Containerize and orchestrate applications using Docker, Kubernetes, Helm, and service mesh technologies
Write high-quality unit and integration tests using JUnit 5, Mockito, and related frameworks
Lead code reviews, enforce secure coding practices, and drive performance optimization
Troubleshoot production issues, perform root cause analysis, and improve reliability with strong monitoring and alerting
Mentor engineers, contribute to technical direction, and help ensure overall team success
Maintain technical documentation including architecture diagrams, API specifications, and runbooks
Identify technical debt and propose scalable, best-practice solutions
Qualification
Required
Design, develop, and maintain RESTful microservices using Java 17+ and Spring Boot 3.x
Build distributed, high-throughput systems using Apache Cassandra, including data modeling and query optimization
Develop and deploy cloud-native services on Microsoft Azure such as: AKS, Azure Functions and Service Bus
Implement event-driven architectures using Kafka, RabbitMQ, or Azure Event Hubs
Apply microservices patterns such as API Gateway, Circuit Breakers, Service Discovery, and Distributed Tracing
Containerize and orchestrate applications using Docker, Kubernetes, Helm, and service mesh technologies
Write high-quality unit and integration tests using JUnit 5, Mockito, and related frameworks
Lead code reviews, enforce secure coding practices, and drive performance optimization
Troubleshoot production issues, perform root cause analysis, and improve reliability with strong monitoring and alerting
Mentor engineers, contribute to technical direction, and help ensure overall team success
Maintain technical documentation including architecture diagrams, API specifications, and runbooks
Identify technical debt and propose scalable, best-practice solutions
10+ years of experience designing and developing large, complex backend systems using Java and OOP principles
6+ years of experience building microservices architectures
5+ years of hands-on experience with Spring Boot and the Spring ecosystem such as: Spring Cloud, Data, Security, REST
3+ years working with streaming and messaging technologies such as: Kafka, RabbitMQ, Azure Service Bus
Proven experience with Apache Cassandra or other NoSQL databases, including production data modeling and performance tuning
Strong experience with containerization and cloud platforms
Experience building APIs using REST, JSON, and familiarity with gRPC and GraphQL
Hands-on experience with CI/CD pipelines
Solid understanding of API security and secure coding best practices
Experience using modern development tools
Strong communication skills and experience collaborating with US-based and global teams
Experience leading and mentoring engineers while remaining a strong individual contributor
Benefits
Medical, Dental, & Vision Insurance Plans
Employee-Owned Profit Sharing (ESOP)
401K offered
Company
KellyMitchell Group
KellyMitchell is a HR firm for IT and technical staffing for organizations globally.
1001-5000 employees
H1B Sponsorship
KellyMitchell Group has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
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Trends of Total Sponsorships
2025 (2)
2021 (2)
2020 (2)
Funding
Current Stage
Late StageLeadership Team
Cassandra Sanford
CEO and Owner
Gina Chisholm
Vice President - Business Operations
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