We are seeking an experienced Senior Java Developer to support the modernization of a mission-critical government information system. The ideal candidate will have extensive experience developing enterprise Java applications and a proven track record of modernizing complex software systems within secure, highly regulated environments.
Essential Job Functions:Application Development & Modernization
- Design, develop, maintain, and modernize enterprise Java applications supporting mission-critical government systems.
- Plan and execute application and technology stack upgrades while minimizing operational impact.
- Develop and maintain Java and Python applications running on Windows-based VMware infrastructure.
- Refactor and modernize legacy application code using current development standards and best practices.
- Implement secure coding practices in accordance with federal cybersecurity and compliance requirements.
- Participate in code reviews and promote software development best practices.
Infrastructure & Systems Integration
- Upgrade, configure, and maintain Apache Solr clusters using ZooKeeper.
- Plan and execute Solr version upgrades, including index migration and optimization.
- Configure, deploy, and maintain Apache Tomcat application servers.
- Integrate enterprise applications with Oracle 19c databases.
- Support directory services integration using Apache Directory Studio.
- Develop and maintain integrations with SAP Business Intelligence reporting environments.
- Troubleshoot application, middleware, and integration issues across the technology stack.
Collaboration & Documentation
- Collaborate with software developers, database administrators, infrastructure engineers, cybersecurity personnel, and business stakeholders.
- Support system testing, validation, and deployment activities during modernization efforts.
- Create and maintain technical documentation, including system architecture, upgrade procedures, deployment guides, and operational documentation.
- Identify opportunities to improve application performance, scalability, reliability, and maintainability.
Required Skills:
- Due to the sensitivity of customer related requirements, U.S. Citizenship is required.
- Ability to obtain and maintain a Top Secret/Sensitive Compartmented Information (TS/SCI) security clearance.
- 13+ years of experience in software engineering, systems engineering, information technology, or a closely related field.
- A Bachelor's degree may substitute for 4 years of experience.
- A Master's degree may substitute for 6 years of experience.
- Extensive experience developing enterprise Java applications.
- Strong experience developing applications in Python.
- Experience supporting applications deployed on Windows-based VMware infrastructure.
- Expertise with Apache Solr and ZooKeeper, including Solr upgrades, index migration, replication, and optimization.
- Experience administering and deploying applications on Apache Tomcat.
- Experience with Apache Directory Studio and LDAP directory integration.
- Experience integrating applications with Oracle 19c and other relational database management systems.
- Experience supporting SAP Business Intelligence reporting environments.
- Strong understanding of secure software development practices and secure coding standards.
- Experience modernizing and upgrading enterprise software applications in production environments.
- Excellent analytical, troubleshooting, and problem-solving skills.
- Strong written and verbal communication skills.
Desired Skills:
- Experience developing applications using the PrimeFaces UI framework.
- Active TS/SCI clearance with an in-scope polygraph.
- Experience supporting federal government or Department of Defense (DoD) information systems.
- Experience working in Agile software development environments.
- Familiarity with DevSecOps practices, CI/CD pipelines, and automated deployment tools.
Additional Requirements:
- Preferred Work Location: Candidates located in or near Annapolis Junction, Maryland; Washington, D.C.; or Reston, Virginia are preferred.
- Telework: This position is eligible for telework in accordance with contract requirements and Government approval. Periodic onsite support at customer locations may be required based on mission needs.
- Ability to travel occasionally to customer or program locations as required.
- Must maintain all required security clearances and certifications throughout the duration of employment.
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