Senior Java Developer

We are seeking an experienced Senior Java Developer to join the modernization team. You will design, develop, and maintain mission-critical microservices and applications that support child support case management operations. The role requires strong experience in microservices architecture - building, deploying, and maintaining loosely coupled, independently deployable services. Your work will span web application development, REST API services, batch processing, and system integrations within a cloud-native environment.Key Responsibilities:Design, develop, and maintain microservices using Spring Boot, following domain-driven design and service decomposition best practicesBuild and deploy loosely coupled, independently deployable services with well-defined API contractsDevelop scalable web applications, RESTful APIs, batch jobs, and integration services for the application platformDevelop and optimize Spring Batch jobs for high-volume data processing, reporting, and scheduled workflows Implement data access layers using Hibernate/JPA against PostgreSQL databasesManage inter-service communication patterns including synchronous REST calls and asynchronous messagingCollaborate with architects and business analysts to translate requirements into technical solutionsParticipate in code reviews, enforce coding standards, and mentor junior developersTroubleshoot application issues and provide timely resolutions across distributed microservicesContribute to CI/CD pipeline improvements and deployment automation for microservicesWrite unit and integration tests to ensure code quality and reliabilityWork with cross-functional teams on system integration efforts including third-party and inter-agency data exchangesOther duties as assigned.Mandatory Qualification(PASS/FAIL)Level III- More than seven (7) years of experience working on complex projects with 2 or more years in a leadership role as a Developer7+ years of professional Java development experience with strong proficiency in Java 21 (records, sealed classes, pattern matching, virtual threads). One to three years of experience designing and building microservices architectures - service decomposition, API gateway patterns, service discovery, and distributed configuration; deploying and operating microservices on AWS (EC2, ECS/EKS, RDS, S3, SQS, Lambda).Seven years of experience with Spring Boot and the Spring ecosystem (Spring MVC, Spring Data, Spring Security, Spring Cloud); Spring Batch for large-scale batch processing; solid understanding of Hibernate/JPA for ORM and database interaction; experience with PostgreSQL or similar relational databases; building and consuming RESTful APIs with proper versioning and contract-first design; experience with inter-service communication patterns (REST, messaging queues, event-driven).Additional Qualifications:Meets (Yes/No)Experience with government or public sector projectsFamiliarity with CI/CD tools (Jenkins, GitHub Actions, or similar) for microservices deployment pipelines; distributed system concerns: fault tolerance, circuit breakers, retries, and observability.Hands-on experience with microservices patterns such as saga, CQRS, event sourcing, and API composition; service mesh technologies and API gateway solutions (AWS API Gateway, Spring Cloud Gateway)Experience with Git version control and collaborative development workflows; strong understanding of software design patterns, SOLID principles, and clean code practicesExperience with containerization (Docker) and orchestration (Kubernetes/ECS) for microservices deploymentKnowledge of message-driven architecture (SQS, SNS, Kafka) for asynchronous inter-service communication; database-per-service patterns and database migration tools (Flyway, Liquibase etc)Experience with centralized logging and distributed tracing across microservices (CloudWatch, Splunk, Datadog, Zipkin, OpenTelemetry)Knowledge of infrastructure-as-code (Terraform, CloudFormation); OAuth2/OpenID Connect for securing microservices