Java Microservices Developer

Role Summary

The Java Microservices Developer modernizes and migrates Java applications to run reliably in colocation facilities and AWS within the DMC Technology portfolio. This role focuses on service decomposition (where applicable), API design, integration refactoring, secure authentication (SSO/MFA/IAM), and operational excellence (CI/CD and Splunk observability). The developer will enhance application resilience, implement modern integration patterns, and ensure applications meet performance and security requirements in hybrid and cloud environments while supporting the broader migration program objectives.

Key Responsibilities

Develop and enhance microservices using Java (Spring Boot or similar frameworks) following modern API design principles.
Develop Java microservices using Spring Boot with focus on maintainability, testability, and operational excellence.
Refactor legacy integrations to resilient patterns including timeouts, retries, circuit breakers, and graceful degradation.
Implement resilient API and integration patterns including error handling, retry logic, and fallback mechanisms.
Implement authentication and authorization patterns using enterprise SSO/MFA and federated IAM systems.
Integrate authentication and authorization mechanisms including OAuth2, OIDC, and service-to-service authentication.
Support database migration changes including connection strings, drivers, performance tuning, SQL compatibility, and query optimization.
Integrate application logging, metrics, and tracing with Splunk; implement correlation IDs and structured logging for operational visibility.
Contribute to CI/CD pipelines in Jenkins and Git-based workflows; support deployment automation and release processes.
Support CI/CD pipelines and production deployments with focus on quality, reliability, and rapid feedback.
Required Skills & Qualifications

Strong Java development experience including Spring Boot, Tomcat, REST API development, and unit/integration testing frameworks.
Java and Spring Boot experience with focus on enterprise application development.
Microservices patterns including configuration management, service discovery, resiliency patterns, API versioning, and contract testing.
REST APIs and microservices architecture including design principles and best practices.
Security fundamentals: OAuth2, OIDC, SAML, service-to-service authentication, secrets handling, and secure coding practices.
OAuth2, OIDC, and IAM fundamentals with understanding of enterprise security requirements.
Tooling experience: Git version control, Jenkins CI/CD, Harness, and build tools (Maven/Gradle).
Enterprise CI/CD experience including pipeline development and automated testing.
Observability: Splunk, logging best practices, distributed tracing, and troubleshooting in distributed systems.
Preferred Qualifications

Container technologies including Docker and orchestration platforms (Kubernetes/EKS).
Messaging platforms experience (Kafka, RabbitMQ) for event-driven architectures.
AWS native services knowledge including Lambda, SQS/SNS, API Gateway, and other serverless technologies.
Experience with Oracle and SQL Server data access optimization, migration constraints, and performance tuning in banking environments