Java Full Stack / Backend Developer – Spring Boot, Kafka, MongoDB

Java Full Stack / Backend Developer – Spring Boot, Kafka, MongoDBLocation: New Jersey (Onsite – 3 Days/Week from Day 1)Duration: Long TermJob SummaryWe are looking for an experienced Java Backend Developer with expertise in application modernization, microservices, and cloud technologies. The ideal candidate should have hands-on experience modernizing enterprise-scale platforms, preferably in the Banking or Loyalty domain, and building highly scalable applications capable of processing millions of transactions.Required SkillsStrong Java development experienceSpring Framework & Spring BootMicroservices ArchitectureApache KafkaMongoDBREST APIsOAuth 2.0 Authentication & SecurityOpenShift / KubernetesAzure Public CloudContainer OrchestrationCI/CD Tools:JenkinsMavenGradleGitHub ActionsuDeployTestNGTest Driven Development (TDD)Preferred ExperiencePlatform Modernization projectsBanking or Financial Services domainLoyalty PlatformsHigh-volume transaction processing (20M+ transactions/day)End-to-End Solution Design & ArchitectureResponsibilitiesDesign and develop scalable Java-based microservices.Modernize legacy applications using Spring Boot and cloud-native technologies.Build secure REST APIs with OAuth 2.0.Develop event-driven applications using Kafka.Deploy and manage applications on OpenShift and Azure Cloud.Implement CI/CD pipelines and DevOps best practices.Collaborate with architects, product owners, and cross-functional teams.Ensure high performance, scalability, and reliability of enterprise applications.Must-HaveJavaSpring BootKafkaMongoDBMicroservicesAzure CloudOpenShift/KubernetesOAuth 2.0CI/CD (Jenkins, Maven, GitHub Actions)