Senior Information System Security Officer

CACI International Inc; Springfield (VA); On-site; USD 121,000 - 266,000; Full time

Job summary

CAC I International Inc is seeking a Senior Information System Security Officer to support DHS Headquarters, leading RMF activities for ATO decisions and developing SSPs. You will coordinate with IT owners and cybersecurity professionals to implement robust controls and maintain compliance across systems.

The role requires U.S. Citizenship, Active Top Secret clearance, and 15+ years in information security with RMF/NIST/DHS guidance.

Qualifications

• U.S. Citizenship required.
• Active Top Secret Clearance.
• BS/BA plus 15 years of information security experience.
• 10+ years of information security experience with RMF, NIST, FISMA.
• Experience with classified information systems and SCIFs.
• Familiarity with DHS 4300 Series and related directives.

Responsibilities

• Execute complete RMF activities for ATO decisions including system categorization and control implementation.
• Develop and maintain System Security Plans, authorization artifacts, and security baselines.
• Conduct risk assessments, continuous monitoring, and remediation planning across assigned systems.
• Advise system owners and executives on cybersecurity matters and document security improvements.

Skills

RMF

NIST

FISMA

Top Secret clearance

U.S. Citizenship

Security controls

Communication skills

Education

BS/BA + 15 years information security experience

CISSP/CISM/CASP+ credential

Tools

CSAM

RegScale

eMASS

Job description

Job Title: Senior Information System Security Officer

Job Category: Information Technology

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 searching for a Senior Information System Security Officer (Senior ISSO) to support the DHS Headquarters. As a Senior Information System Security Officer, you will play a crucial role in ensuring the security and compliance of DHS HQ's information systems. You will work in a dynamic environment, collaborating with IT system owners, stakeholders, and cybersecurity professionals to implement and maintain robust security controls. Your efforts will directly contribute to safeguarding DHS's mission-critical systems and data. The Senior ISSO will serve as the single point of contact on all systems security matters, leading cybersecurity engineering efforts for assigned Program Management Organizations with direct support to the Compliance Branch Lead. This includes spearheading systems' ATO efforts and maintaining a security posture in compliance with FISMA, DHS 4300 Series, NIST, and DHS and Component Directives. The Senior ISSO will execute complete Risk Management Framework (RMF) activities for Authority to Operate (ATO) decisions and ensure all security documentation is kept up to date.

Responsibilities

The Senior ISSO will execute complete Risk Management Framework (RMF) activities for Authority to Operate (ATO) decisions including system categorization, security control selection and implementation, self-assessments, POA&M development, and continuous monitoring. This position requires developing and maintaining System Security Plans (SSPs) including control baselines, inheritance, Business Impact Analyses, implementation statements, technical and system descriptions, and hardware and software inventories. The Senior ISSO will create and maintain Configuration Management Plans, conduct Security Impact Analyses, approve Change Requests, and document the security impact of configuration changes. Responsibilities include developing and testing Contingency Plans and Incident Response Plans to ensure business continuity, as well as conducting annual risk assessments, supporting security assessments, and vulnerability assessments across assigned systems. The position involves advising system owners and senior executives on all cybersecurity matters and developing remediation work plans for assessment and/or audit findings. The Senior ISSO will maintain Hardware and Software Inventory Lists and conduct FISMA Scorecard Analysis. The Senior ISSO will ensure proper access controls are implemented for system access, track and suggest technologies, processes, and practices designed to protect networks, devices, programs, and data from malicious attack, damage, or unauthorized access, and research and maintain proficiency in tools, techniques, countermeasures, and trends in computer and network vulnerabilities, data hiding, and network and device security and encryption.

Qualifications

Required:

• U.S. Citizenship required
• Active Top Secret Clearance
• BS/BA + 15 years of applicable experience in information security
• 10+ years of experience in information security
• Experience working with classified information systems and SCIFs
• Demonstrated expertise in RMF, FISMA, NIST, DHS 4300 Series, and classified system security requirements
• Complete Standard Form 4414 Non-Disclosure Agreement prior to accessing TS/SCI information

Desired

• Previous DHS or DoD experience with classified systems
• Experience with Supply Chain Risk Management for classified networks
• Must have one of the following Information Assurance Technician (IAT) Level III qualifications:
• Certified Information System Security Professional (CISSP)
• Certified Information Security Manager (CISM)
• CompTIA Advanced Security Practitioner (CASP+)
• Experience with CSAM, RegScale, eMASS, or similar GRC tools in classified environments
• Knowledge of Intelligence Community Directive (ICD) 503 and related requirements
• Experience supporting emergency operations or disaster response missions
• Strong communication skills

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.

CAC I 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
• time off benefits

The Proposed Salary Range For This Position Is

$120,800 - $265,800

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.