Senior Software Developer

General information

Requisition #

R70108

Locations

USA-Remote Work

Posting Date

08/20/2026

Security Clearance Required

Interim Secret

Remote Type

Fully Remote

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 working in Crane, IN. This is a remote position.

Responsibilities include but are not limited to:

• Writing clean, maintainable, and efficient code using TypeScript for Angular web application logic, and JavaScript for developing/maintaining RESTful APIs.

• Implementing unit tests using frameworks like Vitest and conducting code reviews to ensure application quality, performance, and troubleshooting simplicity.

• Supporting front-end development by building responsive web interfaces and components using HTML, CSS, JavaScript, Angular, PrimeNG, and TypeScript.

• Writing and optimizing SQL queries and designing schemas for relational databases such as MySQL to support backend functionality.

• Writing and maintaining comprehensive public-facing application documentation.

• Containerizing applications using Docker and Docker Compose, and managing application images consistently across development, testing, and production environments.

• Building applications in compliance with the Application Security and Development Security Technical Implementation Guide (STIG).

Basic Qualifications:

• High School Diploma or equivalent education

• 7+ years of experience in systems engineering and or software development.

• Must possess a CASP+, CISSP, or equivalent DoD 8570.01 / 8140 IAT Level III certification, or successfully obtain within 30 days of offer acceptance and prior to beginning employment

• Experience and familiarity with CI/CD pipelines such as GitHub Actions or GitLab CI

• Experience using or supporting the use of cloud services (AWS, Azure, or GCP)

Preferred Qualifications:

• Strong working knowledge of RMF, Continuous ATO, POA&Ms, STIGs, ACAS/Nessus, and eMASS

• Experience integrating with security tooling APIs such as STIG Manager, Tenable.sc/Nessus, or similar

• Experience deploying containerized applications to Kubernetes, including configuration, secrets, health checks, scaling, and troubleshooting

• Experience with documentation tooling such as Sphinx/reStructuredText or Docusaurus

Clearance Requirements:

• U.S. citizenship required and an active or current Secret clearance or ability to obtain an Interim Secret prior to starting.

Physical Requirements:

• The person in this position must be able to remain in a stationary position 80% of the time.

• Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

The projected compensation range for this position is $105,900.00-$177,300.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

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 careers@mantech.com and provide your name and contact information.