Lead Application Security Engineer
SciTec · Boulder, Colorado, United States · On-site
Pay: USD 155,000 – 185,000 a year
Posted Jul 20, 2026
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SciTec, a Firefly Aerospace Company, is a dynamic non-traditional defense contractor that delivers advanced technologies in support of U.S. National Security and Defense. For the past forty-five plus years, we have supported Department of Defense customers by developing innovative remote sensing algorithms, tools, and techniques to deliver world-class data exploitation capabilities supporting missile defense; intelligence, surveillance, & reconnaissance; space domain awareness; and aircraft survivability missions.
Important Notice: SciTec exclusively works on U.S. government contracts that require U.S. citizenship for all employees. Applicants that do not meet this requirement will not be considered.
SciTec has an immediate opportunity for a talented engineer to support our programs delivering Next-Generation Missile Warning software. This is a unique opportunity to join a business delivering core capabilities for National defense. You will work within a fast-paced team delivering end-to-end software processing of Overhead Persistent InfraRed (OPIR) sensor data for Missile Warning, Missile Defense, Battlespace Awareness, and Technical Intelligence.
We are seeking an Application Security Engineer Lead to help secure mission-critical software systems by identifying, analyzing, and mitigating application-level vulnerabilities. This role focuses on hands-on security analysis, tooling integration, and working directly with software engineers to embed security into the development lifecycle.
The ideal candidate combines strong technical security skills with the ability to collaborate effectively with developers in a DevSecOps environment.
Responsibilities
Perform application security analysis using both automated and manual techniques, including:
Static code analysis (SAST)
Software composition analysis (SCA)
Fuzzing
Manual code and design reviews
Lead an application security team in support of multiple programs
Identify, analyze, and help remediate application vulnerabilities
Support software engineers in integrating security considerations into system and application designs
Integrate and maintain application security tooling within CI/CD and DevSecOps pipelines
Design, implement, and improve continuous integration security analysis tooling
Tune and maintain security tools to reduce false positives and improve signal quality
Assist development teams in understanding findings and implementing effective fixes
Support threat modeling and secure design reviews
Stay current with emerging vulnerabilities, attack techniques, and mitigation strategies
Document findings, recommendations, and best practices
Perform other duties as assigned
Requirements
Bachelor’s degree plus 8+ years of professional experience in cybersecurity or software development, or equivalent experience
2+ years of experience focused on application/software security
Experience analyzing source code for security flaws
Familiarity with secure…