Information System Security Manager (ISSM)

Information System Security Manager (ISSM) Decision Technologies vision insurance, paid time off, tuition reimbursement, 401(k) United States, Texas, Austin May 13, 2026 About Decision Technologies, Inc. Decision Technologies was founded to help bridge the gap between Department of Defense and Federal Government acquisition programs and technology to help our customers optimize their decision-making process. Over the years, our areas of expertise have expanded to include Systems Engineering, Program Management, In-Service Engineering, Equipment Repair, Research and Development, Test and Evaluation, and Intelligence and Counterintelligence Support. Our growth and success have positioned us as a premier engineering and intelligence services provider contributing to our nation's defense. Our company culture cultivates talented problem-solvers on focused on performance with industry-leading teamwork and responsiveness. We have established a reputation for offering superior services and solutions, proven integrity and innovation, employee engagement and development, and customer collaboration. Bring your expertise and knowledge to our team! Decision Technologies seeks a qualified Information System Security Manager (ISSM) to join our team in Austin, TX.

Position Description:

ISSM with a proven record of reducing enterprise risk and strengthening security posture through advanced Microsoft security ecosystems, SIEM optimization, and strategic technology planning. Implement and managean Intune, Sentinel, Defender, and automated patching solutions. Must be an expert in incident response, threat hunting, and forensic analysis using Sentinel and Splunk. Skilled in developing IT roadmaps, enforcing compliance with NIST, FISMA, HIPAA, PCI, and

CUI/ITAR

requirements, and integrating FedRAMPauthorized technologies. Adept at continuous monitoring, DLP implementation, executivelevel SIEM reporting, and enterprise risk mitigation.

MUST HAVE

Secret Security Clearance Responsibilities and Duties:

Developed, implemented, and managed enterprise security strategies resulting in a 30% reduction in security incidents over two years, utilizing Microsoft Intune (Kusto), Sentinel, and Defender. Spearhead incident response and forensic investigations with Sentinel and Splunk, successfully mitigating high-prioritytwo years breaches. Develop a strategic IT roadmap addressing future technological needs, emerging security threats, and regulatory compliance. Design and implement patch management tools to incorporate all users, reducing Attack Surface Area with Intune and Windows Automatic Update tool. Leverage Defender for Cloud to reduce Attack Surface Reduction and increase security in depth. Ensure compliance with regulations like

NIST 800-53, NIST

800-171, FISMA, or other relevant cybersecurity frameworks. Assess and procure IT products compliant with CUI and ITAR regulations, ensuring seamless integration with FedRAMP marketplace solutions. Create, Implement, and Continuous Monitor of Sentinel to verify Risk Management, Threats, Vulnerabilities, Network and Device security, and any configuration changes. Integrate workbooks with Sentinel to provide a SIEM for C Suite members during on-site visits and show utilization of security events being collected and analyzed. Implement Data Loss Prevention with Labels in Intune to validate security compliance with HIPAA, NIST, PCI, PII and CUI. Identify potential risks, developed mitigation strategies, and established contingency plans for enterprise IT systems.

Required Qualifications and Skills:

• 3 to 5 Years of experience as an ISSM • Bachelor's degree from an developaccredited University or

CNSSI 4012

certificate or ADQ GA7 • Completion of one of the following o

NEC 2779

(

CIN:

A-531-0009

) o

NEC 3372

(CIN

W-3B-1500, EKMS

Manager) o

A-4C-1340

(KMI)

Desired Qualifications:

• CompTIA CISSP or CASP • Understanding of

NIST 800-53

Controls • Knowledge with DOD eMASS database. • Familiarity with STIG Viewer and eMASS software programs,

Travel Requirements:

• Less than 10%.

Compensation:

Compensation at Decision Technologies, Inc. is determined by various factors, including but not limited to location, the individual's particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.

Employee Benefits:

Competitive Paid Time Off Comprehensive Medical, Dental and Vision Insurance Employee Assistance Programs Flexible Spending Accounts (Medical, Dependent Care & Commuter) Company paid Short Term, Long Term, Life and AD&D Insurance 401(k) match Tuition Reimbursement Paid Certifications Decision Technologies, Inc. provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.