Senior Java Full Stack Developer-6

McLean, Virginia 22043 Posted October 1st, 2026Job Type: ContractJob Category: ITJob DescriptionJob Title: Senior Java Full Stack DeveloperExperience: 12+ YearsEmployment Type: ContractLocation: Mclean, VAJob SummaryWe are seeking a highly experienced Senior Java Full Stack Developer with 12+ years of hands-on experience in Java development, Spring Boot, Spring Batch, microservices, REST APIs, SQL/PostgreSQL, and AWS cloud services.The ideal candidate will have strong experience designing, developing, and owning high-throughput Java/Spring Boot microservices, enterprise integration workflows, batch processing pipelines, and cloud-native applications. The candidate should also be comfortable working across development, production readiness, CI/CD, security, monitoring, and troubleshooting.Must-Have Technical Skills10+ years of hands-on Java development12+ years of overall software development experience preferredStrong expertise in Java, OOP, Collections, Concurrency, and Clean CodeDeep hands-on experience with Spring BootStrong experience with Spring BatchExperience with Spring Batch Jobs, Steps, Readers, Processors, Writers, Chunking, Partitioning, and RecoveryStrong experience developing RESTful APIs using Spring MVC/WebFluxExperience building and consuming secure and resilient REST integrationsStrong knowledge of OAuth2 client-credentials authenticationExperience implementing API retries, timeout strategies, and resilient integration patternsStrong SQL and PostgreSQL experienceExperience with complex queries, indexing, transactions, and performance tuningStrong experience with Spring Data JPA and JDBC TemplateHands-on experience with AWS cloud servicesStrong experience with CI/CD and cloud-native application developmentKey ResponsibilitiesDesign, develop, and maintain high-throughput Java/Spring Boot microservices for enterprise integration and inbound data processing.Design and implement Spring Batch jobs and end-to-end data processing pipelines.Develop secure and scalable REST APIs and integrations using Spring Boot and AWS API Gateway/Lambda.Implement OAuth2 client-credentials authentication and secure service-to-service communication.Develop resilient integrations with appropriate retry mechanisms, timeout strategies, exception handling, and observability.Build file/API-to-database synchronization processes.Design and develop cloud-native applications using AWS services including EC2, S3, Lambda, ECS, EKS, Fargate, and DynamoDB.Develop and maintain serverless architectures using AWS Lambda, API Gateway, CloudFormation, and Step Functions.Develop and maintain CI/CD pipelines using AWS CodePipeline, CodeBuild, and CodeDeploy.Implement automated testing and deployment processes.Design and maintain AWS infrastructure and cloud deployment configurations.Monitor, troubleshoot, and optimize application performance using CloudWatch and X-Ray.Implement AWS security best practices using IAM, KMS, and CloudTrail.Develop backup and disaster recovery solutions using AWS services such as S3 and EBS.Optimize SQL queries, database transactions, indexing, and ETL-style workloads in PostgreSQL.Ensure applications are production-ready, scalable, secure, and highly available.Collaborate with QA, DevOps, Product, Data, and other cross-functional teams.Participate in architecture discussions and provide technical guidance.Mentor junior and mid-level engineers through code reviews, design reviews, and engineering best practices.Required SkillsCloud Developer SQL Application Developer #J-18808-Ljbffr Jobleads-US