Software Systems Engineer
Full-time
US
Oct 24, 2026
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About the Role
Software Systems Engineer Security Requirement: Favorable Tier 3/NACLC/ANACI investigation required at proposal submission. Secret clearance. Certification Requirements: CompTIA Security+, at least one Microsoft Azure certification (AZ-204, AZ-305, or AZ-400), and DoD 8140 baseline certification. Position Summary Nationwide IT Services (NIS) is seeking a highly qualified Software Systems Engineer to support a federal IT application modernization and sustainment program for the Defense Logistics Agency (DLA). The Software Systems Engineer will design, develop, modernize, integrate, and sustain complex enterprise applications supporting a Department of Defense (DoD) mission. This position requires strong technical expertise in software engineering, application architecture, development, testing, debugging, and system integration. The successful candidate will modernize legacy applications, develop secure and scalable software solutions, and collaborate with multidisciplinary technical teams to enhance application functionality, performance, security, and reliability. This position is contingent upon contract award and funding. Key Responsibilities Design, develop, modernize, integrate, and sustain enterprise software applications supporting DoD mission requirements. Provide technical engineering support throughout the software development lifecycle (SDLC), including requirements analysis, architecture, design, coding, testing, debugging, deployment, and documentation. Develop a