Java Developer Java Jobs in Herndon, VA (NOW HIRING)

Senior Java Developer / Java Programmer

Program: IRS Master File Research and Analysis (MFRA)
Place of Performance: Hybrid—approximately 25% at the New Carrollton Federal Building, 5000 Ellin Road, Lanham, MD 20706, and 75% at the contractor’s location. The employee must be able to report to the Government site within two hours of notice.

Position Summary

The Senior Java Developer will provide full-lifecycle software development, operations and maintenance, integration, testing, deployment, and production support for IRS Master File Research and Analysis applications. The individual will develop and enhance secure, scalable, high-performance Java applications supporting Filing Season, Mid-Year, Tax-Year, legislative, and mandated system changes.

The Senior Java Developer will work as part of an integrated IRS-led technical team and collaborate with developers, business analysts, database specialists, DevOps engineers, security personnel, and Government stakeholders.

Essential Duties and Responsibilities

• Analyze business requirements, work requests, system specifications, and technical documentation.
• Design, develop, code, test, integrate, deploy, and maintain Java and Java Enterprise Edition applications.
• Develop and maintain RESTful web services and application programming interfaces using JAX-RS or comparable technologies.
• Apply object-oriented programming principles, Java design patterns, Spring Framework, Hibernate, and modern web-development technologies.
• Develop user-interface components using JavaServer Faces, PrimeFaces, React, or comparable frameworks.
• Design and build scalable, secure, reliable, and high-performance applications.
• Deploy and support Java applications using Red Hat JBoss Enterprise Application Platform 7.2.6 or newer.
• Integrate applications with IRS enterprise systems, shared services, databases, infrastructure, and external interfaces.
• Develop and maintain solutions using Oracle, PL/SQL, DB2, XML, HTML, and related technologies.
• Perform unit, functional, automated, integration, regression, performance, load, and security testing using JUnit or equivalent tools.
• Investigate application incidents, defects, and ServiceNow problem tickets, including high-priority P1 and P2 issues.
• Troubleshoot application, web-service, database, integration, and production-performance problems and implement corrective solutions.
• Support code builds, configuration management, and deployment activities using Jenkins/Hudson, Maven, ANT, GitHub, and Endevor.
• Use Linux RHEL 8.0 and Linux shell scripts to support application development and operations.
• Apply secure-development practices and support compliance with FISMA, Section 508, IRS security requirements, and applicable lifecycle standards.
• Develop and maintain required technical documentation, including design specifications, test plans, deployment plans, programming requirements, operating instructions, system manuals, and knowledge articles.
• Participate in Agile Scrum activities, including planning, development, testing, demonstrations, deployments, retrospectives, and Change Control Board meetings.
• Conduct technical and architectural reviews to verify solution feasibility, quality, security, and alignment with program requirements.
• Maintain accurate code, configuration, testing, and lifecycle artifacts in designated repositories.
• Provide technical guidance, knowledge transfer, coaching, and mentoring to team members and IRS personnel.
• Explain complex technical matters to nontechnical stakeholders and prepare presentations or briefings for Government leadership.
• Support production implementations and post-deployment monitoring to ensure system stability and timely resolution of issues.

Minimum Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or a related technical field.
• At least eight years of professional Java development experience, including application design, coding, testing, integration, deployment, and maintenance.
• Strong experience with object-oriented programming, Java design patterns, Spring Framework, Hibernate, and web technologies.
• Demonstrated experience designing and developing scalable, high-performance enterprise applications.
• Experience with Java/Java EE, JAX-RS, JUnit, JBoss EAP, Maven, ANT, Jenkins/Hudson, GitHub, and Linux.
• Experience developing or integrating RESTful web services and shared APIs.
• Experience with Oracle, PL/SQL, DB2, or comparable relational database technologies.
• Experience troubleshooting production applications and resolving software defects and performance issues.
• Experience working in Agile software-development environments.
• Strong written and verbal communication skills.
• Ability to work effectively with multidisciplinary technical teams and Government stakeholders.
• Must hold an active IRS Minimum Background Investigation or a qualifying federal background investigation that satisfies the Government’s requirement at the time of proposal submission.
• Must maintain the required investigation and staff-like access eligibility throughout employment.
• Must meet applicable U.S. citizenship or lawful permanent residency requirements.

Preferred Qualifications

• Current Java professional certification.
• Experience supporting IRS or U.S. Department of the Treasury systems.
• Knowledge of IRS Master File systems, particularly the Business Master File or Individual Master File.
• Familiarity with CFOL command codes and federal tax-processing applications.
• Experience with IBM Engineering Lifecycle Management tools, including DOORS Next and Engineering Test Management.
• Experience with Jira, Eclipse/RDz, File Manager, IBM Debugger, AppScan, AppInternals, JConsole, or VisualJC.
• Understanding of OneSDLC/ELC lifecycle processes, IRM 2.5 requirements, ServiceNow Change processes, and federal application-security standards.

Work Requirements

• Hybrid performance with regular availability to work at the New Carrollton Federal Building.
• Must be able to report to the Government site within two hours of notification.
• No reimbursable travel is anticipated under the contract.
• Employment is contingent upon contract award, Government approval, verification of qualifications, and continued satisfaction of security and suitability requirements.