Senior ISSE — RMF, Zero Trust & Azure Security

Sigma Defense Systems; City of Rome (NY); On-site; USD 125,000 - 155,000; Full time

Benefits offered by this job

Dental and Vision Insurance

Medical Insurance including HSA/FSA/DF

Life and AD&D coverage

Employee Assistance Program

401(k) with Company Matching

PTO 160 hours

12 floating holidays

Educational Assistance

Highly competitive salary

Job summary

Sigma Defense Systems in Rome, NY is seeking a Senior Information Systems Security Engineer (ISSE) to join our team. The role focuses on delivering robust security across the system lifecycle, RMF implementation, and Zero Trust principles for DoD-grade environments.

You will work with ACAS, Microsoft Azure security technologies, Defender for Cloud, Xacta automation, and IaC to automate compliance and enhance security posture.

Qualifications

• 8+ years of security engineering experience in information systems or related field.
• Strong ACAS skills including vulnerability scanning, results analysis and remediation tracking.
• Experience implementing RMF and Zero Trust architectures.
• Experience with Microsoft Azure security technologies and cloud security.
• Active TS/SCI clearance or ability to obtain with sponsorship.

Responsibilities

• Serve as a senior cybersecurity engineering resource across the system lifecycle.
• Apply RMF principles within Zero Trust architectures, translating requirements into practical controls.
• Perform vulnerability assessment and continuous monitoring using ACAS.
• Analyze ACAS results, identify vulnerabilities, and guide remediation with engineers.
• Design and maintain security controls in Microsoft Azure environments.
• Develop and manage Azure Policy initiatives, assignments, and compliance controls.
• Utilize Defender for Cloud to improve cloud workload protection and posture.
• Automate security and compliance through IaC and other automation technologies.
• Collaborate with architects, cloud engineers, DevSecOps and ISSOs to enhance security posture.

Skills

Security engineering

RMF implementation

Zero Trust

Azure security

ACAS experience

Xacta automation

IaC concepts

Vulnerability mgmt

TS/SCI clearance

Education

Bachelor's degree in Cybersecurity

Tools

ACAS

Defender for Cloud

Xacta

Azure Policy

Job description

Sigma Defense Systems in Rome, NY is seeking a Senior Information Systems Security Engineer (ISSE) to join our team. The role focuses on delivering robust security across the system lifecycle, RMF implementation, and Zero Trust principles for DoD-grade environments.

You will work with ACAS, Microsoft Azure security technologies, Defender for Cloud, Xacta automation, and IaC to automate compliance and enhance security posture.