JobsCyber SecurityWashington, DCSenior Cyber Security Engineer (Systems Architect)

CACI International

Posted yesterday · Jobs at CACI International

Senior Cyber Security Engineer (Systems Architect)

CACI International · Washington, District of Columbia, United States

Full-timeHybrid · 4 days in office5-10 yrs$94k–$198kListed as no visa sponsorshipDefense and Space Manufacturing
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In short

Lead cybersecurity engineering efforts to protect enterprise applications and infrastructure while conducting security assessments and vulnerability analyses. Collaborate with cross-functional teams to integrate security into the SDLC and maintain compliance with federal requirements.

What they're looking for

MUST-HAVE SKILLS

Active Top Secret clearanceBachelor's degree5+ years cybersecurity or systems administrationSDLC and Agile methodologiesCloud, networking, IAM, and security monitoringVersion control and CI/CD pipelinesVulnerability management

ALSO MENTIONED

ATO lifecycle and POA&M managementSecure application architecture designSecurity log management solutions

Requires an active Top Secret security clearance and a bachelor's degree in a relevant field. Candidates must have at least 5 years of experience in cybersecurity engineering or systems administration.

About the employer

CACI International Inc

Expanding the limits of national security

CACI International Inc (NYSE: CACI) is a technology-first national security company that expands the limits of national security through innovation, discipline, and operational excellence. We deliver advanced technologies that help our customers move faster, operate more efficiently, and anticipate and defeat evolving threats. Our 27,000 talented employees and strong culture drive our success and have earned CACI recognition as a Fortune World's Most Admired Company. CACI is a member of the Fortune 500™, the Russell 1000 Index, and the S&P MidCap 400 Index. For more information, visit caci.com.

Read more

CACI is an Equal Opportunity Employer - Females/Minorities/Protected Veterans/Individuals with Disabilities

INDUSTRY
Defense and Space Manufacturing
COMPANY
Public Company
FOUNDED
1962
HEADQUARTERS
Reston, Virginia
SIZE
10,001+on LinkedIn
OFFICES
1 on LinkedIn
OPEN HERE
16 roles

KNOWN FOR

ITIntelGovernmentDefenseCyberBusiness Systems

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Questions about this role

Is this CACI International role remote?
Tagged hybrid · 4 days in office.
What does it pay?
The posting lists $94,400–$198,200 a year.
Does it sponsor visas?
Listed as no visa sponsorship.
What experience does it ask for?
Listed as 5-10 years.

The posting, in full

Job Title: Senior Cyber Security Engineer (Systems Architect) Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of Travel Required: None Type of Travel: None * * * The Opportunity: CACI is seeking a Senior Systems Architect / Cyber Security Engineer to support a critical Department of Justice agency in the National Capital Region. In this role, you will help shape and implement enterprise cybersecurity strategies that protect mission-critical applications, systems, and data from evolving cyber threats.

▶ READ THE FULL POSTING

Job Title: Senior Cyber Security Engineer (Systems Architect)

Job Category: Engineering

Time Type: Full time

Minimum Clearance Required to Start: Top Secret

Employee Type: Regular

Percentage of Travel Required: None

Type of Travel: None

* * *

The Opportunity:

CACI is seeking a Senior Systems Architect / Cyber Security Engineer to support a critical Department of Justice agency in the National Capital Region. In this role, you will help shape and implement enterprise cybersecurity strategies that protect mission-critical applications, systems, and data from evolving cyber threats.

As a key member of an Agile team, you will collaborate with architects, engineers, and security professionals to design, implement, and enhance secure technology solutions. This is an exciting opportunity to work on high-impact initiatives where your expertise will directly contribute to the security, resilience, and compliance of a complex enterprise environment.

The ideal candidate is a proactive problem solver with strong technical expertise, a solid understanding of security best practices, and the ability to communicate effectively with both technical and non-technical stakeholders.

Responsibilities

  • Lead cybersecurity engineering efforts to strengthen the security posture of enterprise applications, infrastructure, and networks.
  • Conduct security assessments, vulnerability analyses, penetration testing, and system audits to identify risks and recommend remediation strategies.
  • Monitor systems for security events and anomalies, investigate incidents, and implement corrective actions to mitigate vulnerabilities.
  • Configure, maintain, and secure Windows-based servers and supporting infrastructure.
  • Develop and maintain incident response plans that support rapid recovery and business continuity during security events.
  • Collaborate with development and operations teams to integrate security throughout the Software Development Lifecycle (SDLC).
  • Create, maintain, and enforce cybersecurity policies, standards, procedures, and technical documentation.
  • Evaluate system architectures and security controls to ensure compliance with federal and organizational requirements.
  • Support vulnerability management activities, including tracking findings through remediation and validation.
  • Partner with engineers, Information System Security Officers (ISSOs), and assessors to support security compliance initiatives and authorization activities.

Qualifications:

Required:

  • Active Top Secret (TS) security clearance.
  • Bachelor's degree in Information Technology, Cybersecurity, Computer Science, Engineering, or a related field.
  • 5+ years of experience in cybersecurity engineering, systems administration, networking, or Windows Server administration.
  • Strong understanding of the Software Development Lifecycle (SDLC), including Agile and iterative development methodologies.
  • Experience developing clear technical and security documentation for both technical and non-technical audiences.
  • Ability to engage and collaborate effectively with cross-functional stakeholders, including engineers, ISSOs, and security assessors.
  • Experience reviewing, interpreting, and discussing system architecture documentation and technical design diagrams.
  • Working knowledge of cloud technologies, networking, identity and access management (IAM), security monitoring, and logging concepts.
  • Familiarity with version control systems, CI/CD pipelines, and vulnerability management processes.
  • Ability to work onsite in Washington, DC, at least four days per week.
  • Strong verbal and written communication skills.

Desired:

  • Experience managing security findings and remediation activities resulting from vulnerability assessments and scans.
  • Familiarity with federal cybersecurity compliance frameworks and processes, including Authority to Operate (ATO) lifecycle activities and Plan of Action and Milestones (POA&M) management.
  • Advanced knowledge of application architecture and secure system design principles.
  • Advanced experience with security logging, monitoring, and log management solutions.
  • Advanced experience in vulnerability management and risk remediation.
  • Exceptional verbal presentation, stakeholder engagement, and written communication skills.

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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.

The proposed salary range for this position is:

$94,400 - $198,200

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.

APPLY ON CACI INTERNATIONAL'S CAREERS SITE ↗
SAVE THIS JOB

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This listing comes from CACI International's own careers site. Apply links go to the employer. Company facts are from CACI International Inc's public profile. Last checked 14 Nov 2026.