Information Systems Security Engineer (ISSE)

Posted 4 Days Ago
Be an Early Applicant
Aberdeen Proving Ground, MD, USA
In-Office
83K-174K Annually
Senior level
Information Technology • Consulting • Defense
The Role
Designs and evaluates secure systems for Army modernization initiatives, including tactical software, containers, hybrid cloud, and on-premises architectures. Develops cybersecurity plans and architecture documentation, integrates Zero Trust and secure engineering practices, supports DevSecOps automation, performs vulnerability and STIG compliance assessments, and coordinates remediation and residual-risk management. Requires active Secret clearance, ability to obtain Top Secret, five years of cybersecurity engineering experience, a relevant bachelor’s degree or equivalent experience, and IASAE Level II certification.
Summary Generated by Built In
Job Title: Information Systems Security Engineer (ISSE)

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:

The Information Systems Security Engineer (ISSE) serves as a key technical cybersecurity professional supporting our US Army customer and the Next Generation Command and Control (NGC2) modernization initiatives. In this role, you will partner closely with Assistant Program Managers (APMs), Product Managers (PdMs), and engineering teams to embed security‑by‑design across modernized tactical software baselines, containerized applications, and secure hybrid cloud/on‑prem architectures. The ISSE ensures modernization efforts maintain a robust, resilient, and defensible security posture against evolving tactical threats.

Responsibilities:

Program Support & Collaboration

  • Partner with APMs, PdMs, lead systems engineers, and cybersecurity personnel to execute the program’s cybersecurity strategy.

  • Provide proactive technical consultation to evaluate proposed designs, architectures, and software configurations early in the lifecycle to minimize security risk.

Cybersecurity Documentation & Artifacts

  • Develop, review, and maintain core program cybersecurity documentation such as the Program Protection Plan (PPP), Cybersecurity Strategy (CSS), System Security Plans (SSP), and technical cyber architecture diagrams.

Modern Architecture & Zero Trust Support

  • Contribute to the design and engineering of secure, resilient architectures across hybrid cloud (IL5/IL6), virtualized, and tactical edge environments.

  • Integrate Zero Trust principles, access control mechanisms, encryption approaches, and fault‑tolerant strategies into system designs.

Secure Engineering & Automation

  • Promote secure software engineering practices to reduce flaws, bugs, and weaknesses.

  • Collaborate with DevSecOps teams to implement automated security controls, container vulnerability scanning, and compliance‑as‑code within CI/CD pipelines.

  • Support automation of Windows and Linux system hardening efforts.

Vulnerability Management & Compliance Verification

  • Conduct and analyze ACAS/NESSUS scans, DISA STIG/SRG compliance checks, and static/dynamic source code vulnerability assessments.

  • Assist in developing improved automated vulnerability management and patching processes.

Governance & Remediation

  • Represent Cybersecurity interests on Configuration Control/Review Boards (CCB/CRB).

  • Coordinate with engineering, vendor, and contractor teams to address vulnerabilities, communicate remediation steps, and manage residual risk.

Qualifications:
Required: 

  • Active DoD Secret clearance, with ability to obtain and maintain a Top Secret (TS).

  • Bachelor’s degree in Cybersecurity, Systems Engineering, Computer Science, or related technical field — An additional 6 years of DoD cybersecurity experience may substitute for the degree.

  • 5 years of hands‑on engineering experience in cybersecurity, secure systems design, or related role.

  • DoD 8140/8570 IASAE Level II certification (CASP+, CISSP, or CSSLP).

Desired:

  • Active DoD TS clearance.

  • Familiarity with Army Systems Acquisition processes, milestone decision points, and associated cybersecurity artifact requirements.

  • Ability to align technical solutions with Army program needs and support program‑level cybersecurity strategy.

  • Agile & DevSecOps Frameworks: Practical experience working within Agile/SAFe development frameworks. Understanding of secure software development lifecycles, CI/CD automated pipeline security, and containerization.

  • Architecture & Engineering: Hands-on experience with secure cloud (Azure and AWS GovCloud Impact Level 5/6 environments), virtualized platforms (VMware, Hyper-V), and on-premise tactical system architectures. Ability to translate complex security controls into technical, implementable requirements.

  • Tactical Domain Expertise: Technical understanding of Army Mission Command (MC) / Command and Control (C2) architectures and tactical network environments. Experience securing systems within Army Warfighting Functions (WfF) and transitioning legacy systems to modernized NGC2 capabilities.

  • Networking & Security Design: Solid understanding of traditional, cloud, and tactical networking concepts (TCP/IP, VLANs, routing, firewalls, VPNs) across the Integrated Tactical Network (ITN). Experience with endpoint detection and response (EDR) tools, automation scripting (Windows/Linux), and Security Orchestration, Automation, and Response (SOAR).

  • Risk Management Framework (RMF): Strong working knowledge of NIST SP 800-53 security controls, DoDI 8510.01 Risk Management Framework (RMF) for DoD Information Technology, and AR 25-2 Army Cybersecurity. Fluent in navigating the DoD Authority to Operate (ATO) lifecycle via eMASS and conducting residual risk assessments.
     


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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:

$82,700 - 173,900 USD

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 DoD Secret clearance
  • Ability to obtain and maintain a Top Secret clearance
  • Bachelor’s degree in Cybersecurity, Systems Engineering, Computer Science, or a related technical field
  • Six additional years of DoD cybersecurity experience may substitute for the bachelor’s degree
  • Five years of hands-on engineering experience in cybersecurity, secure systems design, or a related role
  • DoD 8140/8570 IASAE Level II certification, such as CASP+, CISSP, or CSSLP
  • Active DoD Top Secret clearance
  • Familiarity with Army Systems Acquisition processes, milestone decision points, and cybersecurity artifact requirements
  • Experience supporting program-level cybersecurity strategy and aligning technical solutions with Army program needs
  • Practical experience with Agile or SAFe development frameworks, secure SDLC, CI/CD pipeline security, and containerization
  • Hands-on experience with Azure, AWS GovCloud Impact Level 5/6, VMware, Hyper-V, and tactical on-premises architectures
  • Technical understanding of Army Mission Command, Command and Control architectures, tactical networks, and Army Warfighting Functions
  • Networking and security design experience involving TCP/IP, VLANs, routing, firewalls, VPNs, EDR, scripting, and SOAR
  • Strong knowledge of NIST SP 800-53, DoD RMF, DoDI 8510.01, AR 25-2, eMASS, ATO lifecycles, and residual-risk assessments

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

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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.

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