Senior Java Software Engineer

Note: This position is contingent upon contract award. Anticipated award date is end of July 2026.About The C.A.S.E. Engineering GroupThe C.A.S.E. Engineering Group is an Information Technology (IT) engineering firm that specializes in providing cybersecurity advisory services, modernizing IT architectures, developing and implementing IT strategic plans, and designing and engineering innovative systems, software, and applications. C.A.S.E. stands for Cybersecurity, Architecture, Strategy, and Engineering, which reflects both our core expertise and our belief that developing innovative solutions in unique environments requires a balanced approach. While C.A.S.E. tailors its solutions on a case-by-case basis to address the specific challenges organizations face, it also leverages industry best practices to ensure efficiency, security, and long-term success.This position supports a mission-critical federal tax processing environment, where our team develops, modernizes, and sustains the enterprise applications that surround and extend the nation’s master file systems. We are seeking a Senior Java Developer who can design and build scalable, high-performance applications on a Java Enterprise Edition and Red Hat JBoss platform, and who thrives at the intersection of modern web technologies and the disciplined, secure delivery a federal environment demands. We seek professionals who are not only technically proficient but also adaptable, analytical, and dedicated to excellence—ensuring that we continue to provide our clients with the best expertise available.Position OverviewThe Senior Java Developer will be responsible for designing, developing, testing, and maintaining enterprise applications in support of a federal tax processing and master file research environment. This role requires deep expertise in Java and Java Enterprise Edition technologies, object-oriented design, and the frameworks and tools used to build scalable, high-performance, secure applications. The developer will collaborate with cross-functional teams to implement enhancements, resolve issues, and ensure that all software changes meet federal security and quality standards before deployment.This is a full-time, hybrid role requiring availability during normal business hours, with occasional night and weekend work as needed based on project demands. Personnel must have reasonable access to the government site in Lanham, MD and be able to travel there within two hours’ notice. The Senior Java Developer reports to the Technical Program Manager and works closely with development, testing, and operations teams to ensure high-quality software development and system integration.Key ResponsibilitiesDesign, develop, test, and maintain enterprise applications using Java and Java Enterprise Edition (EE) technologiesApply object-oriented programming principles, Java Design Patterns, and frameworks such as Spring and HibernateBuild and consume web services using Jakarta RESTful Web Services (JAX-RS)Develop responsive user interfaces using Java Server Faces / PrimeFaces or REACTDeploy and manage applications on Red Hat JBoss Enterprise Application Platform (EAP) 7.2.6 or newerDevelop and execute unit tests using JUnit or comparable testing frameworksBuild, automate, and manage code using Jenkins/Hudson, Apache Ant, Maven, and GitHubPerform source code analysis with AppScan and application monitoring and tuning with AppInternals, JConsole, and VisualVMWrite and maintain Linux shell scripts in a RHEL 8 environmentReview and analyze detailed software requirements and document coding changes for enhancementsPerform peer reviews, debugging, and performance tuning to ensure defect-free production deploymentsProduce Enterprise Life Cycle (ELC) documentation and utilize the IBM ELM Tool Suites, including DOORS Next, Jira, and EndevorSupport Agile development practices and collaborate with stakeholders to define and implement technical solutionsQualificationsEducation:Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent experience); Java certification preferredExperience:At least 8 years of experience in Java development, including design, coding, and testingStrong expertise in object-oriented programming, Spring Framework, Hibernate, and web technologiesExperience designing and building scalable, high-performance applicationsTechnical Expertise:Java and Java Enterprise Edition (EE) 6 technologiesJakarta RESTful Web Services (JAX-RS) and Java Design PatternsJUnit or other testing frameworksRed Hat JBoss Enterprise Application Platform (EAP) 7.2.6 or newerJava Server Faces / PrimeFaces or REACT for GUI developmentEclipse, Jenkins/Hudson, Another Neat Tool (ANT), Maven, and GitHubAppScan, AppInternals, JConsole, and VisualVMLINUX RHEL 8.0 and Linux shell scriptingIBM Suite, File Manager, Job Control Language (JCL), AEV JCL, and IBM DebuggerEndevor, Jira, and the IBM Engineering Lifecycle Management (ELM) Tool Suites (e.g., DOORS Next)Additional Skills:Strong problem-solving and debugging skills with attention to detailFamiliarity with Enterprise Life Cycle (ELC) process and documentation, and Agile methodologiesKnowledge of RHEL 8 containerization and Cloud Migration is a plusAbility to collaborate in a team-oriented environment and communicate effectively with technical and non-technical stakeholdersAdaptability in a fast-paced, evolving work environment with shifting prioritiesClearance:Must be able to obtain and maintain an IRS Minimum Background Investigation (MBI); U.S. work authorization requiredWhy Join Us?Work with mission-critical systems that directly support federal tax processing operationsBuild scalable, modern applications on high-impact, high-visibility systemsBe part of a growing company that values innovation, technical excellence, and problem-solvingHybrid role offering flexibility and work-life balanceOpportunities for professional growth and advancement