Senior Security Analyst

Masarna • Rolla, MO

3d

About The Position

We’re seeking an experienced Security Analyst who can operate independently, take ownership of complex security initiatives, and contribute to policy development and risk management across an enterprise environment. This individual will work within a Microsoft-centric ecosystem to secure infrastructure, enforce compliance standards, and strengthen organizational resilience against threats. You’ll thrive in this role if you’re self-driven, collaborative, and confident in both hands-on technical work and documentation — someone who can read, write, and enforce policies while staying deeply technical in security operations.

Requirements

• 5+ years of experience in cybersecurity or information security operations.
• Proven ability to work independently with minimal supervision and high accountability.
• Strong knowledge of the Microsoft ecosystem (Azure AD, Active Directory, Defender, Sentinel, Entra, Purview).
• Experience writing and maintaining security documentation and policies.
• Familiarity with firewall management, network segmentation, vulnerability tools (Tenable, Qualys, or Nessus).
• Understanding of CUI, ITAR, NIST, DFARS, and other federal compliance frameworks.
• Excellent communication and analytical skills.

Nice To Haves

• Scripting experience (PowerShell or Python) for automation or policy enforcement preferred.
• Relevant certifications such as CISSP, CISM, CEH, Security+, or similar are highly desired.

Responsibilities

• Manage and monitor enterprise firewalls and ensure proper network segmentation and access control.
• Oversee Azure AD and Active Directory security — implementing and maintaining group policies, RBAC, and Zero Trust configurations.
• Administer Microsoft security tools such as Defender, Sentinel, Entra, and Purview.
• Lead and document incident response processes, including phishing remediation, forensics, and root cause analysis.
• Conduct vulnerability management — discovery, tracking, reporting, and coordination with IT for remediation.
• Author and maintain security policies, procedures, and runbooks aligned with frameworks like NIST 800-171, ISO 27001, and CUI standards.
• Collaborate with compliance and infrastructure teams to ensure systems meet regulatory and export-controlled data requirements.
• Provide ongoing monitoring and reporting to leadership on key security metrics and risks.

Benefits

• Comprehensive health benefits
• PTO
• Tuition assistance
• Relocation assistance

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed