Senior Software Engineer

General information

Requisition # R61987 Locations USA-VA-Chantilly Posting Date 07/22/2025 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 seeks a motivated, career and customer-oriented Senior Software Engineer to join our team in Chantilly, VA. 

Responsibilities include but are not limited to:

As a Senior Software Engineer, you will be instrumental in delivering secure, high-impact solutions vital to our government clients. Your contributions will directly enhance operational efficiency and data integrity, aligning with our commitment to innovation, quality, and mission success.

• Lead the design, development and delivery of a cloud native, web application to support workflow automation for audit and compliance activities for a high-visibility client program.
• Proactively identify and resolve complex technical challenges, ensuring the continuous performance, security, and availability of distributed systems and web services.
• Champion secure coding standards, automated testing strategies (unit, integration, E2E), and CI/CD pipelines to ensure the delivery of high-quality, reliable software.
• Work seamlessly within an Agile team, engaging with stakeholders to translate evolving requirements into effective technical solutions across the full software development lifecycle.

Minimum Qualifications:

• Bachelor's degree in a technical field with 5+ years, or Master's degree with 3+ years, of professional software engineering experience.
• Demonstrated experience working as part of an Agile software development team, contributing across all phases of the software development lifecycle, and building web applications in support of Government clients.
• Proficiency in at least 3 of the following core technologies: Angular, Python, JavaScript / Typescript, Containers / Kubernetes, AWS cloud-services, Git, Elasticsearch, Postgres, Grafana, workflow engines, Playwright (or other automated testing tools).
• Experience serving in a leadership capacity as part of an Agile software development team.
• Excellent oral and written communication skills.

Preferred Qualifications:

• Current CompTIA Security+ certification.
• Demonstrated professional experience in software engineering roles (e.g., Front End Engineer, Backend Engineer, Full Stack Engineer or DevSecOps Engineer).
• Strong experience with DevSecOps principles, Continuous Integration (CI), Continuous Delivery/Deployment (CD), and comprehensive automated testing strategies (unit, integration, end