Senior Java Full Stack Developer

McLean, Virginia 22043 Posted October 1st, 2026

Job Type: Contract Job Category: ITJob Description

Job Title:

Senior Java Full Stack Developer

Experience:

12+ Years

Employment Type:

Contract

Location:

Mclean, VAJob Summary We 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 Skills
10+ years of hands-on Java development
12+ years of overall software development experience preferred

Strong expertise in Java, OOP, Collections, Concurrency, and Clean Code Deep hands-on experience with Spring Boot Strong experience with Spring Batch

Experience with Spring Batch Jobs, Steps, Readers, Processors, Writers, Chunking, Partitioning, and Recovery Strong experience developing RESTful APIs using Spring MVC/Web Flux Experience  building and consuming secure and resilient REST integrations

Strong knowledge of OAuth2 client-credentials authentication

Experience implementing API retries, timeout strategies, and resilient integration patterns

Strong SQL and PostgreSQL experience

Experience with complex queries, indexing, transactions, and performance tuning

Strong experience with Spring Data JPA and JDBC Template Hands-on experience with AWS cloud services

Strong experience with CI/CD and cloud-native application development

Key Responsibilities Design, 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, Cloud Formation, and Step Functions.

Develop and maintain CI/CD pipelines using AWS Code Pipeline, Code Build, and Code Deploy.

Implement automated testing and deployment processes.

Design and maintain AWS infrastructure and cloud deployment configurations.

Monitor, troubleshoot, and optimize application performance using Cloud Watch and X-Ray.

Implement AWS security best practices using IAM, KMS, and Cloud Trail.

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, Dev Ops, 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 Skills Cloud Developer SQL Application Developer