Microsoft 365 Administration Support Jobs

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Help Desk Systems Administration

Sigmatech, Inc. Colorado Springs, CO

Colorado Springs, CO

Today

$70k - $85k/yr Full time Active Directory Application Support Customer Service

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Job Description

Sigmatech, Inc. is seeking a Help Desk System Administrator to deliver Tier I and Tier II end-user technical support and perform systems administration for Windows environments, network infrastructure, audiovisual systems, and enterprise applications supporting NSSI. This onsite role in Colorado Springs focuses on troubleshooting, account and configuration management, cybersecurity-aligned operations, and reliable backup and recovery support.

Location

Colorado Springs, CO (onsite)

Compensation

USD 70,000 - 85,000 per year

Education

Associate's or Bachelor's degree in Cybersecurity, Computer Science, Information Technology, or a related discipline (preferred). Equivalent experience may be accepted in lieu of degree.

Responsibilities

Provide Tier I and Tier II technical support for hardware, software, operating systems, network connectivity, printers, mobile devices, and collaboration tools.
Diagnose, troubleshoot, and resolve technical issues submitted via service desk tickets, phone, email, or in-person requests.
Escalate complex issues to senior administrators, engineers, or external vendors as appropriate.
Maintain a high level of customer service and support timely resolution of user requests.
Administer and maintain Windows workstations and servers, including Active Directory, Group Policy, file shares, and enterprise applications.
Create, modify, disable, and manage user accounts, permissions, and access controls.
Configure and maintain system settings, security baselines, and organizational standards.
Monitor system performance, availability, and operational health.
Support network infrastructure administration, including switches, wireless access points, DNS, DHCP, and TCP/IP services.
Troubleshoot network connectivity issues and support both local and remote users.
Support audiovisual equipment, conference room technology, and classroom systems as required.
Implement and maintain cybersecurity best practices aligned to organizational policies and regulatory requirements.
Apply security patches, operating system updates, and firmware upgrades.
Assist with vulnerability remediation, system hardening, and compliance activities.
Maintain proper access controls to protect organizational data and information systems.
Maintain accurate inventory records of hardware, software licenses, and IT assets.
Track equipment lifecycle activities including procurement, deployment, maintenance, replacement, and disposition.
Assist with hardware and software acquisition recommendations and implementation.
Maintain technical documentation, standard operating procedures, system diagrams, and configuration records.
Document incidents, service requests, troubleshooting steps, and resolutions within the ticketing system.
Develop and update knowledge base articles to improve user self-service capabilities.
Verify scheduled backups complete successfully and support recovery operations.
Support disaster recovery and continuity of operations activities, including testing and validation of recovery procedures.
Assist with IT projects such as system deployments, migrations, upgrades, and technology refresh initiatives.
Participate in testing and validation of new technologies and software solutions.
Coordinate with network engineers, cybersecurity personnel, developers, and vendors to implement solutions and resolve issues.

Requirements

Experience providing help desk support, systems administration, and end-user technical assistance in an enterprise IT environment.
Proficiency supporting Microsoft Windows desktop and server operating systems, Active Directory, Microsoft 365, and enterprise collaboration tools.
Knowledge of networking fundamentals, including TCP/IP, DNS, DHCP, switching, wireless networking, and connectivity troubleshooting.
Ability to diagnose, troubleshoot, and resolve hardware, software, system, and network issues efficiently.
Strong customer service, communication, organizational, and problem-solving skills with the ability to manage multiple tasks and priorities.
Experience working in DoD, federal government, or contractor-operated IT environments is preferred.
Familiarity with virtualization platforms, cloud technologies, cybersecurity best practices, vulnerability management, backup and recovery solutions, and audiovisual/classroom technologies.
Ability to install, configure, maintain, and support IT equipment and infrastructure in office, classroom, and server room environments.
DoD 8140/8570 compliant (relevant education, technical training, and industry certifications such as CompTIA A+, Network+, Security+, Microsoft certifications, or ITIL Foundation are desirable).
Active Secret clearance; TS/SCI eligible preferred.
Ability to lift and carry network equipment (up to 50 lbs.) as needed.
Ability to work on-site at the National Security Space Institute, including secure areas such as SCIF environments.
Occasional after-hours support may be required during assessments, inspections, or incident response activities.

Technologies

Microsoft Windows
Active Directory
Group Policy
Microsoft 365
TCP/IP
DNS
DHCP
Switching
Wireless networking
Audiovisual equipment
Conference room technology
Classroom systems
Virtualization platforms
Cloud technologies
Backup and recovery solutions
Audiovisual/classroom technologies
CompTIA A+
CompTIA Network+
CompTIA Security+
ITIL Foundation

Security Clearance

Active Secret clearance
TS/SCI eligible preferred

Certifications

DoD 8140/8570 compliant (Relevant education, technical training, and industry certifications such as CompTIA A+, Network+, Security+, Microsoft certifications, or ITIL Foundation are desirable.)

Physical Requirements

Ability to lift and carry network equipment (up to 50 lbs.) as needed.
Ability to work on-site at the National Security Space Institute, including secure areas such as SCIF environments.
Occasional after-hours support may be required during assessments, inspections, or incident response activities.

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