AppSec Engineer

Job Title: AppSec Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * The Opportunity: Join a mission‑driven DoD program where your expertise in application security directly strengthens national defense. In this role, you will shape and elevate AppSec across a complex, modern application ecosystem—leading testing operations, influencing secure development practices, and mentoring the next generation of security engineers. You will work side‑by‑side with the Cybersecurity Architect to define secure SDLC strategy and ensure security is deeply woven into every phase of development, from initial design through final deployment. REMOTE! Responsibilities: Lead SAST operations using Fortify, including full ownership of findings triage and remediation tracking Oversee SonarQube continuous code security analysis and quality gate governance Manage and execute DAST testing and runtime vulnerability assessments Plan, lead, and deliver penetration testing engagements across varied application stacks Lead secure code reviews and coach developers on remediation techniques Own application vulnerability remediation tracking, verification, and closure Develop and maintain standards for AppSec assessments and penetration test reporting Drive secure development lifecycle (SDLC) compliance across assigned application portfolios Mentor junior and mid‑level AppSec engineers, fostering technical growth and excellence Serve as the AppSec liaison to the Cybersecurity Architect to advance program‑wide SDLC security strategy Qualifications: Required: Active Secret clearance 6–9 years of experience in application security, penetration testing, or secure software development Advanced proficiency with Fortify and SonarQube Demonstrated experience leading penetration testing engagements and performing secure code reviews Strong knowledge of web application, API, and mobile application vulnerabilities Proven ability to mentor and develop junior AppSec engineers DoD 8140.03M DCWF Intermediate Tier certification — one of: CEH(P), RCCE Level 1, Cloud+, CPTE, FITSP-A, GCED, GCIH, GCSA, GICSP, GSEC, PenTest+, or Security+ Bachelor’s degree in Computer Science, Cybersecurity, Data Science, Information Systems, Information Technology, or Software Engineering Desired: Multiple DoD 8140.03M DCWF Advanced Tier 541 certifications OSCP or equivalent offensive security certification Experience integrating security into DevSecOps pipelines Prior experience developing AppSec programs or secure coding standards within a DoD environment DoD 8140.03M DCWF Advanced Tier certification — one of: CFR, CISA, CISM, CySA+, GPEN, or GSNA Master’s or Ph.D. in Computer Science, Cybersecurity, Data Science, Information Systems, Information Technology, or Software Engineering - What You Can Expect: A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation. An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality. A focus on continuous growth. Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy. Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. Since this position can be worked in more than one location, the range shown is the national average for the position. The proposed salary range for this position is: $75,200-$158,100 CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.