Application Security Engineer

Posted 3 Days Ago
Hiring Remotely in O'Fallon, IL, USA
In-Office or Remote
75K-158K Annually
Mid level
Information Technology • Consulting • Defense
The Role
Secures applications throughout the software development lifecycle by performing SAST with Fortify, code analysis with SonarQube, DAST, penetration testing, secure code reviews, vulnerability remediation tracking, and DoD control validation. The role documents assessment findings, supports secure SDLC process design, and collaborates with developers, architects, and cybersecurity specialists. Requires an active Secret or TS clearance, application security experience, penetration testing knowledge, and CEH certification. Quarterly travel to Scott Air Force Base is required.
Summary Generated by Built In
Job Title: Application Security 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 cybersecurity team securing applications that support a critical DoD mission. In this role, you’ll embed security directly into the software development lifecycle, partner with developers and architects, and use industry‑leading tools to identify, validate, and remediate vulnerabilities across a diverse application ecosystem.

You will:

  • Embed robust security practices into the secure SDLC from design through deployment

  • Execute both static (SAST) and dynamic (DAST) application security testing using enterprise tooling

  • Lead and support penetration testing engagements, guiding developers through actionable remediation

  • Work within a fully staffed cybersecurity program—including architecture, GRC, and operations experts

  • Grow your expertise across the AppSec spectrum: code review, runtime testing, and compliance validation

Responsibilities:

  • Perform SAST using Fortify across assigned applications

  • Conduct continuous code quality and security analysis using SonarQube

  • Execute DAST to identify runtime vulnerabilities

  • Coordinate and execute penetration testing engagements

  • Conduct secure code reviews and document findings with actionable guidance

  • Track and verify vulnerability remediation through closure

  • Validate application security controls against program and DoD requirements

  • Author application security assessment and penetration test reports

  • Support the Cybersecurity Architect with secure SDLC process design

Qualifications:
Required: 

  • Active Secret or TS clearance

  • 3–5 years of experience in application security, secure development, or penetration testing

  • Hands‑on experience with SAST platforms (Fortify preferred)

  • Working knowledge of OWASP Top 10 and common application vulnerability classes

  • Demonstrated experience conducting or supporting penetration tests

  • DoD 8140.03M DCWF Basic Tier — CEH

  • DoD 8140 Interim Education Options

    Required to travel to Scott Airforce base on a quarterly basis

Desired:

  • DoD 8140.03M DCWF Intermediate Tier — 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, IT, or Software Engineering

  • Experience with SonarQube or similar secure code analysis platforms

  • Familiarity with DevSecOps pipelines and CI/CD security integration

  • Scripting or development experience in Python, Java, or similar languages

-

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.

Skills Required

  • Active Secret or Top Secret security clearance
  • 3-5 years of experience in application security, secure development, or penetration testing
  • Hands-on experience with SAST platforms, preferably Fortify
  • Working knowledge of the OWASP Top 10 and common application vulnerability classes
  • Demonstrated experience conducting or supporting penetration tests
  • DoD 8140.03M DCWF Basic Tier certification, CEH
  • DoD 8140 Interim Education Options
  • DoD 8140.03M DCWF Intermediate Tier certification, such as 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, IT, or Software Engineering
  • Experience with SonarQube or similar secure code analysis platforms
  • Familiarity with DevSecOps pipelines and CI/CD security integration
  • Scripting or development experience in Python, Java, or similar languages

CACI International Inc Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about CACI International Inc and has not been reviewed or approved by CACI International Inc.

  • Healthcare Strength Pay is supported by a broad set of health-plan options across multiple national carriers, with telemedicine and tax-advantaged accounts included. Dental and vision choices are also described as multi-option, which strengthens overall coverage breadth.
  • Leave & Time Off Breadth Flexible Time Off is available for many salaried-exempt roles, while hourly roles accrue PTO, creating multiple time-off pathways by employment class. Paid disability coverage, fixed holidays, and paid leave programs (including parental leave and other leave types) further round out time-off and leave coverage.
  • Retirement Support Retirement support includes a 401(k) match structure described as 50% up to 8% of pay (effective 4%) and an Employee Stock Purchase Plan with a discount. Tuition reimbursement and certification support also add to the overall rewards package that complements core retirement benefits.

CACI International Inc Insights

Am I A Good Fit?
beta
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
HQ: Reston, VA
17,673 Employees
Year Founded: 1962

What We Do

CACI’s approximately 23,000 talented employees are vigilant in providing the unique expertise and distinctive technology that address our customers’ greatest enterprise and mission challenges. Our culture of good character, innovation, and excellence drives our success and earns us recognition as a Fortune World's Most Admired Company. As a member of the Fortune 1000 Largest Companies, the Russell 1000 Index, and the S&P MidCap 400 Index, we consistently deliver strong shareholder value. Visit us at www.caci.com.

Similar Jobs

Remote
United States
529 Employees
145K-183K Annually

Vannevar Logo Vannevar

Application Security Engineer

Artificial Intelligence • Machine Learning • Software • Defense
Remote
USA
225 Employees
160K-210K Annually

Zeta Global Logo Zeta Global

Application Security Engineer

AdTech • Artificial Intelligence • Marketing Tech • Software • Analytics
Easy Apply
Remote or Hybrid
United States
2429 Employees
140K-180K Annually

Beyond Finance Logo Beyond Finance

Application Security Engineer

Fintech • Financial Services
Easy Apply
Remote or Hybrid
United States
2200 Employees
140K-165K Annually

Similar Companies Hiring

NODA AI Thumbnail
Artificial Intelligence • Information Technology • Software • Cybersecurity
Sydney, AU
54 Employees
Golden Pet Brands Thumbnail
Digital Media • eCommerce • Information Technology • Marketing Tech • Pet • Retail • Social Media
El Segundo, California
178 Employees
Outpost Space Thumbnail
Aerospace • Defense
US
24 Employees

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account