System Administrator – Contract-to-Hire

Fusion92

System Administrator managing IT security operations for Fusion92, a marketing transformation partner. Responsible for AI security and compliance initiatives while collaborating across departments.

Posted 7/2/2026contractChicago • Illinois • 🇺🇸 United StatesMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

AzureCloudLinux

About the role

Key responsibilities & impact

Triage and respond to security alerts across Huntress, Blumira, and Microsoft Entra ID, investigating risky sign-ins, anomalous behavior, and policy violations
Manage and optimize endpoint security tooling, including SentinelOne and other EDR/EPP platforms, ensuring coverage, policy enforcement, and timely response across the device fleet
Assess and help govern the security implications of AI tool adoption across the organization, evaluating data access, integration permissions, and acceptable use boundaries as new AI initiatives are introduced
Collaborate with the Platform, Product & Innovation team to ensure security controls and governance frameworks are built into AI and data-driven projects from the outset, rather than retrofitted after deployment
Investigate security incidents end-to-end and produce clear documentation for technical and leadership audiences
Audit security configurations against established policies, identify implementation gaps, and surface findings with recommended remediation paths
Review and validate Conditional Access policies, MFA configurations, and identity hygiene across Microsoft Entra ID
Conduct vulnerability assessments and coordinate remediation with relevant IT and infrastructure owners
Perform routine audits of user access, privileged accounts, application permissions, and SaaS integrations
Support compliance gap analysis against SOC 2, NIST, and CIS Controls frameworks and contribute to the organization's regulatory readiness roadmap
Evaluate security tools and processes and provide input on improvements that would meaningfully strengthen our posture
Assist in training junior IT staff on incident identification and response, progressively delegating routine work as their skills develop
Stay current with the evolving threat landscape, including AI-specific risks, and bring relevant insights back to the team

Requirements

What you’ll need

3+ years of hands-on experience in IT security operations or security administration
Working knowledge of Microsoft Entra ID (Azure AD), including Conditional Access, PIM, sign-in log analysis, and identity protection
Hands-on experience with endpoint security platforms such as SentinelOne, CrowdStrike, or equivalent EDR/EPP tools
Experience with SIEM platforms and vulnerability scanning technologies
Working knowledge of Linux systems, including command-line proficiency and familiarity with common security and administrative tasks in Linux environments
Working knowledge of network security concepts, operating system security, and cloud security principles
Familiarity with compliance frameworks such as SOC 2, NIST, ISO 27001, or CIS Controls for gap analysis purposes
Strong communication skills, with the ability to translate technical findings for both IT peers and non-technical stakeholders
Self-directed and accountable, with the ability to manage competing priorities in a high-alert-volume environment

Benefits

Comp & perks

Flexible work arrangements
Professional development

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Incident ResponseVulnerability ScanningSecurity AuditingLinux Systems AdministrationNetwork Security Concepts

Soft Skills

Strong Communication SkillsSelf-DirectedAccountable