System/Network Administrator
System/Network Administrator
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$ 75000 - 90000
1 Vacancy
Job Description
Technology Security Associates is seeking an experienced System/Network Administrator to support a modern securityconscious IT environment. This role involves handson configuration troubleshooting optimization and lifecycle management of enterprise IT infrastructure including Microsoft 365 services physical and virtual servers workstations network systems and cybersecurity tools.
You will be expected to oversee all IT systems with an emphasis on availability performance compliance (e.g. NIST 800171) and cybersecurity best practices. This position demands strong communication skills and occasional afterhours availability for critical support. Additional responsibilities may be assigned as needed.
Duties/Responsibilities:
Microsoft 365 and Security Platform Management
- Administer Microsoft 365 services including Teams SharePoint OneDrive and Exchange Online.
- Manage user identities groups and device enrollment through Microsoft Entra ID (Azure AD) and Intune.
- Maintain endpoint configuration compliance policies and conditional access using Microsoft Intune.
- Monitor and respond to threats using Microsoft Defender XDR and coordinate integration with Microsoft SIEM/SOAR solutions (e.g. Sentinel).
- Manage Microsoft Purview for compliance information protection and data lifecycle management.
- Regularly evaluate Microsoft roadmap updates to leverage new security and productivity features.
- Assist with cloud migrations and digital modernization initiatives (e.g. onprem to M365 transitions).
Infrastructure and Network Administration
- Monitor and maintain hybrid infrastructure including onpremises servers and Azure virtual environments across multiple company subscriptions.
- Support IT asset inventory license management warranty tracking and compliance documentation.
- Provide tier2/3 technical support for enduser hardware software and connectivity issues.
- Implement and monitor backups replication and disaster recovery systems.
- Document systems controls procedures and recovery workflows.
Network and Security Operations
- Configure and monitor Cisco Meraki networks including access points switches and firewalls.
- Administer and troubleshoot SonicWall NSA appliances VPNs and security policies.
- Enforce technical and administrative controls for endpoint protection encryption and network access control.
- Proactively analyze performance metrics identify bottlenecks and apply optimization strategies.
- Implement monitoring and alerting for infrastructure health and security events.
Offensive Security & Exposure Management
- Leverage NodeZero to conduct automated penetration testing across systems and networks.
- Evaluate vulnerabilities validate findings and collaborate on remediation with internal stakeholders.
- Use reporting to prioritize and continuously improve security posture.
- Integrate insights from into ongoing risk management and compliance documentation efforts.
Required Qualifications:
- 3 years in an IT Systems Administrator or Network Administrator role.
- Experience with Microsoft 365 administration including Entra Intune Defender Purview and Azure environments.
- Handson management of Cisco Meraki and SonicWall NSA networking hardware.
- Familiarity with endpoint management security compliance and cloudfirst architecture.
- Practical experience conducting or supporting penetration tests with or similar tools.
- Knowledge of backup and DR systems.
- Strong documentation skills and a proactive customeroriented approach.
- Security Certification or equivalent.
- Must be eligible to obtain and maintain a U.S. Government Security Clearance.
TSA is committed to pay transparency for our applicants and employees. The salary range for this position is $75000 $90000. Actual compensation will be determined based on several factors permitted by law. JHNA/TSA provides for the welfare of its employees and their dependents through a comprehensive benefits program by offering healthcare benefits paid leave retirement plans insurance programs and education and training assistance.
Required Experience:
Unclear Seniority
Employment Type
Full-Time
