Software Engineer, Cybersecurity, Systems Engineer

Description

Position:
Software Engineer

Melbourne, FL (Patrick SFB)

At Leidos, we deliver innovative solutions through the dedication of our diverse and talented teams. United by a shared commitment to our customers' success, we empower our people, support our communities, and operate sustainably. Our Mission, Vision, and Values guide every aspect of our work, ensuring we do the right thing—for our customers, our people, and the world around us.

The Leidos Defense Sector offers a broad portfolio of systems, solutions, and services across land, sea, air, space, and cyberspace. We support critical defense missions with capabilities in enterprise and mission IT, large‑scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence operations. Our teams tackle the world’s toughest security challenges for customers with “can't fail” missions.

We are seeking Agile Software Engineers to support the Air Force Technical Applications Center (AFTAC) U.S. National Data Center (US NDC). The US NDC is a high‑availability, mission‑critical system operating within a secure DoD environment. This role supports modernization, cybersecurity compliance, and sustainment of a large‑scale legacy system while advancing Dev Sec Ops  and cloud‑native practices.

As part of a SAFe Agile team, the selected candidate will collaborate across software, systems, database, hardware, and operations disciplines to design, develop, integrate, and deploy secure, reliable software capabilities.

** This posting is for multiple opportunities across experience levels. Role level and compensation will be aligned to candidate experience.**

• Design, develop, test, and maintain software capabilities aligned to Program Increment (PI) and Sprint objectives
• Lead development tasks and provide technical guidance to junior engineers
• Design and implement secure, scalable system interfaces and microservices components
• Develop and maintain code in Java, Python, C, JavaScript, and Perl within Linux environments
• Implement and improve CI/CD pipelines and Dev Sec Ops  automation
• Ensure compliance with DoD, DISA STIGs, RMF controls, and secure coding best practices
• Participate in architecture discussions, design reviews, and code reviews
• Support integration, system testing, deployment, and troubleshooting in high‑availability environments
• Contribute to technical documentation including design artifacts, interface control documents, and operational procedures
• Assist with root cause analysis and resolution of production issues
• Maintain system documentation, configuration baselines, and operational procedures
• Participate in on‑call rotation and operational sustainment activities
• Provide occasional after‑hours support as required

• Bachelor’s degree in Software Engineering, Software Development, or related discipline with minimum 2‑8 years of related experience. Additional experience, training, or certifications may substitute for degree
• U.S. citizen; currently possessing an Active DoD Top Secret clearance and eligibility for Top Secret/SCI
• Currently hold a DoD 8140 IAT level II certification (e.g., CompTIA Sec+) or ability to earn within 6 months of hire
• Proven abilities with C, Java and Python programming languages
• Experience designing and developing applications in Agile/SAFe environments
• Experience with CI/CD pipelines, build automation, and Dev Sec Ops  practices
• Working knowledge of Linux, Git, and configuration management tools
• Experience developing in secure, regulated environments following DoD cybersecurity policies
• Experience with virtualized environments

• Degree in Software Engineering, Software Development, or related discipline
• Experience supporting 24/7 high‑availability mission systems
• Experience with containerization and orchestration technologies (e.g., Kubernetes)
• Experience modernizing legacy systems or refactoring monolithic architectures
• Familiarity with Oracle or other enterprise databases
• Experience with automated testing frameworks and test‑driven development
• Experi…