Senior Systems Software Developer

Company Description

Citizant is a leading provider of professional IT services to the U.S. government. We seek to address some of our country’s most pressing challenges in the areas of Agile application development, Enterprise Data Management, Enterprise Architecture, and Program Management support services – focusing on the U.S. Departments of Homeland Security and Treasury. We strive to hire only ethical, talented, passionate, and committed “A Players” who already align with the company’s core values:
Drive, Excellence, Reputation, Responsibility, and a Better Future. No matter how large we grow, Citizant will retain its collaborative, supportive, small-company culture, where successful team effort to address external and internal customer challenges is valued above all individual contributions.

We are seeking a highly skilled and experienced Senior Systems Software Developer with a proven track record in developing, maintaining, and supporting advanced software systems for an upcoming opportunity. Your role will entail developing and implementing a fully integrated systems infrastructure, facilitating Continuous Integration/Continuous Delivery (CI/CD) processes, and performing technical integration activities to minimize program critical risk exposure.

The ideal candidate will bring a wealth of knowledge in various IRS tax processing systems, including but not limited to submission processing systems, corporate data systems, compliance and case processing systems, and modernized systems. You will work closely within an Integrated Project Team (IPT) that includes IRS staff and other contractors, adopting the Iterative Enterprise Life Cycle (ELC) development path and methodology to support the IPT in various capacities.

• Design, develop and maintain complex software systems, that ensuring scalability, reliability, and performance.
• Develop clean, efficient, and maintainable code and configurations in accordance with best practices and coding standards.
• Collaborate with cross-functional teams to implement systems that meet all functional and security requirements and align with business objectives.
• Ensures the AD production baseline is maintained with accurate software configuration management across multiple releases, ensuring lifecycle environments are ready for use.
• Develops and implements a fully integrated systems infrastructure, complete with related management processes.
• Actively supports Continuous Integration/Continuous Delivery (CI/CD) initiatives, ensuring seamless integration from end‑to‑end in the software development and deployment process. This includes continuous compilation, testing, and delivery of source code to test environments for immediate error detection.
• Performs upgrading configurations, delivery automation, and backlog grooming sessions.
• Minimizes program critical risk exposure and ensures that technical solutions are safe, secure, extensible, and scalable.
• Establishes and documents standard operating procedures for both technical integration and broader project or program activities.

• Professional experience in software/system design, development, and maintenance with a strong focus on systems software.
• Demonstrated experience in developing software solutions using Java, including Java EE/SE, JSP, JSF, and Hibernate, showcasing the ability to address complex development challenges.
• Proven understanding of the ability to design, develop, and integrate web services using service-oriented architecture (SOA) principles, reflecting a deep understanding of distributed systems architecture.
• Experience with Oracle 10g/11g environments and Oracle Real Application Clusters, as well as implementing middleware rules engines such as Drools, demonstrating proficiency in database and middleware technologies.
• Expertise in implementing continuous integration and deployment processes with tools such as Jenkins, Git Lab CI/CD pipeline, and automated testing techniques, demonstrating a commitment to modern development practices.
• Extensive experience working in Agile/Scrum development environments, indicating adaptability, effective teamwork, and a commitment to…