Senior Software Developer

Senior Software Developer

Elevate your career with MANTECH International Corporation! Join a dynamic team dedicated to national security through cutting-edge technology. Since 1968, MANTECH has led in delivering advanced solutions to government intelligence, the Department of Defense, and Federal Civilian sectors. Dive into innovation in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Your journey to impactful work and rapid growth starts now—be extraordinary at MANTECH!

MANTECH seeks a motivated, career and customer-oriented Senior Software Developer to join our innovative team in Montgomery, AL.

Responsibilities include but are not limited to:

• Serve as the principal technical authority for the CMOS architecture, its complex system dependencies, and underlying global tracking data structures.
• Define the long-term technical roadmap, system design patterns, and platform configurations, ensuring software designs remain compliant with BEA, NDAA, and Department of Defense Architecture Framework (DoDAF) standards.
• Guide the software engineering team through critical infrastructure transformations, specifically providing technical data and script automations to support the CMOS migration to Cloud One environments.
• Perform advanced troubleshooting of low-level operating system functions, memory management, server-side performance bottlenecks, and distributed database scaling challenges.
• Lead rapid-response surge engineering support to address critical system failures, sudden security incidents, or infrastructure bottlenecks, restoring primary mission functionality within 24–48 hours.
• Champion the program's secure software assurance strategy, overseeing static code analysis audits and reviewing automated code review reports (Checkmarx/ACAS) to ensure all Category 1 and 2 security discrepancies are structurally corrected prior to release promotion.
• Mentor junior and mid-level engineers (including Developer IIs), establish test automation frameworks to maximize functional testing, and conduct mandatory code reviews to ensure system architecture stability.

Minimum Qualifications:

• Bachelor's or Master's degree in Computer Science, Software Engineering, or a technical equivalent.
• 8+ years of software development experience, specializing in enterprise-level systems integration and legacy defense modernization.
• Advanced knowledge of technologies associated with transportation applications, including Java, Red Hat Enterprise Linux (RHEL), Oracle Databases, WebLogic, Glassfish, Docker Containers, and CI/CD/DevOps tools (Jenkins, Ansible, Artifactory).
• Deep understanding of RF Hand-Held Terminal technology, Electronic Data Interchange (EDI), encryption controls (TLS/PKI), and multi-system web service integrations.
• DoD 8577 / 8140 Compliance (IASAE Level II or IAT Level III baseline certification, such as CISSP, CASP+, or equivalent) prior to contract execution.

Preferred Qualifications:

• Certified Information Systems Security Professional (CISSP certification).
• Experience with the primary cyber risk and compliance automation tools.

Clearance Requirements:

• An active Secret security clearance

Physical Requirements:

• Must be able to remain in a stationary position 50%.
• Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
• Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation. If you need a reasonable accommodation to apply for a position with MANTECH, please email us at and provide your name and contact information.