Security Engineer

The Opportunity:

CACI is seeking a dedicated Security Engineer to support the Department of Homeland Security (DHS) Office of the Inspector General (OIG). This role offers a unique opportunity to safeguard cutting-edge AI and data analytics capabilities that strengthen national security oversight through investigative audit and inspection operations.

As a Security Engineer you will design implement and maintain comprehensive security controls that protect sensitive investigative data ensure compliance with federal security requirements and enable secure AI and analytics capabilities. You will implement role-based access controls encryption logging and monitoring infrastructure and data protection measures across AI applications enterprise data platforms and cloud infrastructure. From integrating with SIEM tools and enforcing controls for Law Enforcement Sensitive (LES) data to supporting Authority to Operate (ATO) processes and conducting security testing you will be the guardian of data security and compliance. Working within Azure Government environments you will ensure that transformational AI and data capabilities meet the highest standards of federal cybersecurity. Join us to make a meaningful impact by securing mission-critical systems on a program of national importance.

Responsibilities:

Design implement and maintain comprehensive security controls including application and infrastructure logging access controls audit trails encryption and least-privilege access policies across AI platforms data environments and mission applications

Implement and enforce role-based access controls (RBAC) data security policies and protective measures for sensitive data including Sensitive Personally Identifiable Information (SPII) Law Enforcement Sensitive (LES) and For Official Use Only (FOUO) data consistent with DHS OIG policies

Integrate applications data platforms and cloud infrastructure with OIG-approved Security Information and Event Management (SIEM) systems and log aggregation tools to enable security monitoring alerting and incident response

Monitor and analyze security logs access patterns and user behavior to detect unauthorized access attempts anomalous activity data exfiltration risks and potential security incidents across all platform layers

Support Authority to Operate (ATO) processes including security control implementation documentation security testing coordination vulnerability assessment remediation evidence preparation and ongoing compliance monitoring aligned with NIST 800-53 and FedRAMP requirements

Perform comprehensive security testing including vulnerability assessments penetration testing coordination secure code review configuration assessments and validation that pilot applications and production systems meet security requirements

Implement application-level security controls including input validation output encoding authentication/authorization mechanisms session management secure API design and protection against OWASP Top 10 vulnerabilities

Provide specialized forensic analysis and incident response support including server/virtual machine reconstruction security-focused data analysis digital evidence preservation and technical declarations for investigative or administrative matters

Coordinate with DHS OIG cybersecurity teams privacy officers DevSecOps teams and Authorizing Officials to ensure integrated security posture compliance with enterprise security policies and alignment with continuous monitoring programs

Develop and maintain security documentation including security architecture diagrams control implementation evidence configuration standards incident response procedures and security knowledge transfer materials



Qualifications:

Required

Bachelors degree 7 years of experience in cybersecurity information security security engineering or related field; equivalencies considered (Masters 4 years; 13 years with no degree; AA 9 years)

Must be able to obtain DHS / EOD Clearance.

Proven experience implementing security controls access management encryption and logging/monitoring solutions for enterprise applications and cloud infrastructure

Strong understanding of federal security requirements including NIST 800-53 FedRAMP FISMA and experience supporting Authority to Operate (ATO) processes and continuous monitoring programs

Hands-on experience with cloud security in Azure (or AWS/GCP) including identity and access management (Entra ID/Azure AD) network security encryption services and security monitoring tools

Demonstrated experience with SIEM platforms log analysis security monitoring intrusion detection and incident response practices

Desired

Experience securing AI/ML applications data analytics platforms or sensitive data environments in federal government law enforcement or national security contexts with understanding of investigative data handling requirements

Hands-on experience with Azure Government or other secure government cloud environments (AWS GovCloud) including implementation of security controls for FedRAMP High or DoD Impact Level environments

Professional security certifications such as CISSP CEH GIAC (GSEC GCIH GCIA) Security or equivalent demonstrating advanced security knowledge and commitment to the profession

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 youll be part of a high-performing group dedicated to our customers 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. Youll 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 nations 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:

CACI is anEqualOpportunity 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 otherprotectedcharacteristic.