Java Developer, Associate (Part Time - Regular)

LCG•Rockville, MD

12d•Hybrid

About The Position

LCG is seeking a Java Developer, Associate (Part Time - Regular) to support NIH by designing, developing, testing, and maintaining secure, scalable enterprise applications that support mission-critical business operations. This role focuses on modernizing legacy applications, developing new Java-based services, and supporting enterprise software solutions using Java, Spring Boot, RESTful APIs, and modern DevSecOps practices. The developer will work within the Client's Agile/SAFe delivery framework, collaborating closely with Enterprise Architecture, DevSecOps, IT Security, QA, Database Administrators, Business Analysts, and Product Owners to ensure solutions align with enterprise architecture, cybersecurity requirements (including RMF and Section 508 where applicable), and operational readiness standards. Responsibilities span the complete Software Development Life Cycle (SDLC), including requirements analysis, architecture support, application development, integration, testing, deployment, production support, hyper-care, and transition to operations within a regulated federal environment.

Requirements

Previous NIH experience (strongly desired)
3+ years professional experience developing enterprise Java applications.
3+ years experience using Java (Java 8 or higher; Java 11+ preferred).
2+ years experience developing applications using Spring Framework and Spring Boot.
2+ years experience developing RESTful APIs and backend services.
2+ years experience using JPA/Hibernate or similar ORM frameworks.
2+ years experience writing SQL queries and working with relational databases such as Oracle, SQL Server, PostgreSQL, or MySQL.
2+ years experience working in Agile/Scrum or SAFe environments.
1+ year experience supporting applications within regulated environments requiring SDLC documentation, testing evidence, and governance (Federal preferred).
Bachelor's degree in Computer Science, Software Engineering, Information Systems, Information Technology, or related technical discipline (or equivalent experience).
Java Development
Strong experience with Java 8/11+
Object-Oriented Programming (OOP)
Exception handling, collections, concurrency, multithreading
Performance tuning and optimization
Spring Framework
Spring Boot
Spring MVC
Spring Data JPA
Spring Security
Dependency Injection (IoC)
API and Backend Deployment
RESTful API development
JSON/XML processing
API security
OAuth2, JWT authentication
Backend service integration
Database Development
Oracle
SQL Server
PostgreSQL
MySQL
SQL optimization
Stored procedures
JPA/Hibernate
Cloud and DevSecOps
Git
GitHub
GitLab
Jenkins
Maven
Gradle
Docker
Kubernetes (preferred)
CI/CD pipeline support
Testing and Quality Assurance
JUnit
Mockito
Integration Testing
Functional Testing
Performance Testing
SonarQube
Static Code Analysis
Security and Compliance
Secure Coding Practices (OWASP)
Vulnerability remediation
RMF awareness
Section 508 awareness (where applicable)
Authentication and authorization best practices

Nice To Haves

Microservices architecture
Event-driven architecture
Cloud-native application development
AWS, Azure, or Google Cloud Platform
Docker and Kubernetes
Messaging technologies (Kafka, RabbitMQ, ActiveMQ)
Experience supporting NIH, HHS, or other federal agencies
Experience modernizing legacy Java applications
Familiarity with AI-assisted development tools such as GitHub Copilot, Cursor, Claude Code, Codex, or similar to improve development productivity, code quality, documentation, and modernization efforts.
Oracle Certified Professional Java Developer (OCP)
Spring Professional Certification
AWS Certified Developer – Associate
Microsoft Azure Developer Associate
Security+ (preferred for federal environments)
Certified Scrum Developer (CSD) or Scrum certification

Responsibilities

Design, develop, test, maintain, and enhance Java-based enterprise applications supporting NIH business operations.
Develop scalable backend services using Java 11+ (or higher), Spring Boot, and modern software engineering practices.
Modernize legacy applications by migrating business functionality into maintainable Java architectures.
Participate throughout the SDLC including analysis, design, development, testing, deployment, production support, and continuous improvement.
Develop reusable application components and shared libraries to improve maintainability and reduce technical debt.
Participate in application architecture discussions and contribute to technical solution designs aligned with enterprise standards.
Collaborate with Enterprise Architecture, Database Administrators, DevSecOps, and IT Security teams to ensure solutions meet security, scalability, and performance requirements.
Translate business requirements into technical specifications, user stories, and implementation plans.
Support technical design documentation and architecture artifacts throughout project delivery.
Design and develop RESTful APIs and backend services supporting enterprise applications.
Integrate Java applications with databases, cloud services, third-party platforms, and internal enterprise systems.
Develop efficient SQL queries, stored procedures, and data access layers using JPA/Hibernate.
Support secure authentication and authorization mechanisms for enterprise applications.
Support automated CI/CD pipelines using Jenkins, GitHub Actions, GitLab CI, or similar DevOps platforms.
Utilize Git for source code management, branching strategies, code reviews, and release management.
Follow enterprise configuration management, change management, and release governance processes.
Collaborate with DevOps engineers to automate deployments and improve software delivery efficiency.
Develop unit tests, integration tests, and participate in regression and performance testing activities.
Support User Acceptance Testing (UAT) and defect resolution throughout release cycles.
Participate in peer code reviews to maintain coding standards and software quality.
Maintain technical documentation, design documentation, API documentation, and operational support guides.
Support knowledge transfer and documentation for production support teams.
Develop applications following secure coding practices and federal cybersecurity requirements.
Collaborate with IT Security teams to remediate vulnerabilities identified through code scanning and security assessments.
Support RMF documentation, vulnerability remediation, and ATO readiness activities where applicable.
Ensure applications comply with organizational security policies and data protection requirements.
Support application deployments and post-production validation activities.
Troubleshoot application defects, production issues, and performance bottlenecks.
Participate in root cause analysis and implement corrective actions.
Support production stabilization during hyper-care periods following major releases.
Provide technical support and knowledge transfer to operations and maintenance teams.