Systems Administrator in Remote at Adams Communication & Engineering Technology, Inc.
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Job Description
Job Summary
ACET is seeking a motivated IT professional to support day-to-day Microsoft 365 administration while assisting with security monitoring and response across Microsoft Defender and Sentinel. This role blends traditional helpdesk responsibilities with hands-on exposure to security operations and will grow into a more advanced security and systems engineering position over time. This role will also support security and compliance initiatives aligned with frameworks such as CMMC and NIST 800-171.
Key Responsibilities
IT Support / Helpdesk
- Provide Tier 1–2 support for Microsoft 365 (Exchange Online, Teams, SharePoint, OneDrive)
- Manage user accounts, licenses, and access via Microsoft Entra ID
- Troubleshoot endpoint, identity, and application issues across Windows environments
- Support MFA, conditional access, and identity-related issues
- Document issues, resolutions, and standard operating procedures
Security Operations (Defender / Sentinel)
- Monitor Microsoft Defender and Sentinel dashboards for alerts and incidents
- Investigate and triage security alerts (phishing, endpoint threats, suspicious logins)
- Escalate or remediate security incidents following defined processes
- Assist with vulnerability identification and basic remediation tracking
- Maintain awareness of threat trends and recommend improvements
Systems & Security Administration
- Assist with configuration and maintenance of Microsoft 365 GCC High environment
- Support implementation of security controls (Conditional Access, Defender policies, etc.)
- Participate in hardening efforts across endpoints, identities, and cloud workloads
- Help manage and monitor third-party to include Cisco Meraki, Kaseya VSA X, Connectwise PSA, & AvePoint Cloud Backup
- Contribute to audits, compliance efforts, and security documentation
Growth / Project Work
- Support rollout of new security tools and configurations
- Assist senior IT staff with security and infrastructure projects
- Continuously develop skills in cloud security, identity, and endpoint protection
- Assist with the creation and upkeep of company compliance documents
- Involvement in other duties as assigned
Required Qualifications
- 1–3 years of IT support, helpdesk, systems administration or similar experience
- Basic experience with Microsoft 365 administration
- Familiarity with security concepts (MFA, phishing, endpoint protection)
- Experience with Windows environments and troubleshooting
- Strong problem-solving, analysis, and communication skills
- Ability to prioritize and manage multiple tasks
Preferred Qualifications
- Exposure to Microsoft Defender, Sentinel, or similar security tools
- Experience with Azure AD / Entra ID and Conditional Access
- Familiarity with GCC or GCC High environments
- Experience with networking or tools like Cisco Meraki
- Basic understanding of CMMC, NIST 800-171, or similar compliance frameworks and their application in Microsoft 365 environments
- Security certifications (Security+, SC-900, or similar)
What We Offer:
- At ACET, we believe that our employees are our most valuable asset. We are committed to providing a comprehensive Total Rewards program that recognizes and supports the diverse needs of our workforce. Our offerings are designed to attract, motivate, and retain top talent while fostering a culture of excellence, innovation, and well-being.
- Employee benefits include the following:
- Comprehensive Medical, Dental, and Vision coverage
- Life insurance, AD&D, and Short- and Long-Term Disability
- 401(k) Program
- Wellness programs
- Paid Time Off
- 11 Paid Holidays
- Employee Referral Program
- Employee Assistance Program
Please note that all compensation, benefits, and policies are subject to change at the company's discretion. While we make every effort to provide advance notice of changes, adjustments may occur based on business needs, economic conditions, and industry standards.
**Must be U.S. Citizen to apply**
ACET is an Equal Opportunity / Affirmative Action Employer and VEVRAA Federal Contractor. We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to gender, race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.