Senior Software Developer

General information

Requisition # R65452 Locations USA-MD-Annapolis Junction Posting Date 01/28/2026 Security Clearance Required TS/SCI Remote Type Onsite Time Type Full time

Description & Requirements

Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH!

MANTECH seeks a motivated, career and customer-oriented Senior Software Developer to join our team in Annapolis Junction, MD.  This is an onsite position.

In this role, you'll apply your deep technical expertise to research, design, and develop computer and network software or specialized utility programs. Analyze user needs and develop software solutions, applying principles and techniques of computer science, engineering, and mathematical analysis. Update software or enhance existing software capabilities. May work with computer hardware engineers to integrate hardware and software systems and develop specifications and performance requirements.   

Responsibilities include but are not limited to:

• Full Stack Python Engineering: Build and deploy full-stack applications using Python (Django/FastAPI) for RESTful API logic and modern JavaScript frameworks for the UI, ensuring efficient data serialization and state management.
• Team Collaboration: Execute rigorous version control workflows using Git, including complex mergers, rebasing, and peer code reviews to maintain high-quality standards within a CI/CD pipeline.
• Multi-Application Integration: Develop custom middleware and integration layers that synchronize data across heterogeneous systems through webhooks, message queues, and standardized API protocols.
• System Orchestration: Program automated deployment logic and service discovery routines to manage the lifecycle of distributed applications across containerized environments.
• Linux Administration: Perform system tuning and Bash automation to manage package dependencies, network configurations, and kernel-level permissions across production server clusters.

Minimum Qualifications:

• Experienced python software engineer with strong background in either backend or frontend development, full stack preferable.
• Experience working on a team of developers with knowledge of software version control and collaboration tools.
• Ability to create multi-application solutions bridging multiple software capabilities together.
• Some experience with the concept of System Orchestration and developing capabilities to conduct orchestration or tying into existing capabilities.
• Experience with Linux Administration or at least a strong familiarity with Linux required.