Software Developer

General information

Requisition # R65866 Locations USA-VA-Chantilly Posting Date 02/05/2026 Security Clearance Required TS/SCI w/ Poly Remote Type Onsite Time Type Full time

Description & Requirements

Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now—unleash your potential with MANTECH!

MANTECH is seeking a motivated, career and customer-oriented Software Developer to join our team in Chantilly, VA.

Responsibilities include but are not limited to:

• Write stable, extensible, and maintainable code
• Integrate with third-party APIs and internal utilities
• Maintain and add to a suite of automated test scripts
• Participate in code reviews
• Participate in the projects agile process
• Translate technical requirements into high-quality, secure, and robust implementations

Minimum Qualifications:

• Requires Bachelor's degree and 2+ years of technical experience in software/web development or 4+ years of technical experience in software/web development
• Experience contributing to a large software project
• Ability to design features for and maintain long standing software systems with a small team of developers
• Strong knowledge of Microsoft .NET
• Experience with JQuery, C#, CSS
• UI/UX Design

Preferred Qualifications:

• Exposure to front-end technologies and how they fit into the larger software design
• Understanding of REST APIs
• Exposure to databases and SQL
• Experience with continuous integration and deployment
• Experience with Amazon Web Services and/or other cloud service providers
• Quick learner, both able and willing to learn new technology and software
• Ability to work with minimum supervision, while collaborating with team members regularly
• A passion and desire to produce elegant code

Security Clearance Requirement:

• Current TS/SCI clearance with Polygraph is required

Physical Requirements:

• Must be able to be in a stationary position more than 50% of the time
• Must be able to communicate, converse, and exchange information with peers and senior personnel

MANTECH International Corporation 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 careers@mantech.com and provid