IT Administrator

Addison Group; Oklahoma City (OK); On-site; USD 90,000 - 110,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401(k)

Job summary

Addison Group is seeking an experienced IT Administrator to manage, secure, and optimize IT infrastructure across multiple client environments, with a focus on Microsoft 365, Azure, and enterprise systems.

The ideal candidate has hands-on experience with Microsoft cloud technologies, strong troubleshooting abilities, and the confidence to manage technical projects independently while collaborating with clients and internal teams.

Qualifications

• Hands-on experience administering Microsoft 365 and Azure environments.
• Knowledge of Windows Server, Windows desktop OS, Active Directory, DNS, and DHCP.
• Understanding of cloud infrastructure, identity management, endpoint administration, and access controls.
• Networking expertise with TCP/IP, firewalls, switches, wireless, and VPNs.
• Experience implementing infrastructure solutions, migrations, or leading technical projects.
• Strong troubleshooting and root-cause analysis skills.
• Excellent communication and documentation abilities, including client interaction.
• Ability to manage competing priorities, work independently, and collaborate with technical teams.
• Willingness to learn new technologies and adapt to client environments.

Responsibilities

• Administer Microsoft 365, Azure, Entra ID, Intune, Active Directory, and related enterprise systems.
• Diagnose and resolve complex server, workstation, network, and cloud infrastructure issues.
• Maintain Windows Server environments, storage, virtualization, and endpoints.
• Configure and support network infrastructure including firewalls, switches, wireless, and VPNs.
• Monitor system health, strengthen security measures, and maintain backups and recovery solutions.
• Execute infrastructure upgrades, cloud migrations, and deployments.
• Develop disaster recovery procedures and business continuity plans.
• Maintain accurate technical documentation and infrastructure standards.
• Identify opportunities to improve performance, reliability, and security through proactive maintenance.
• Consult with clients to understand requirements and communicate progress.
• Coordinate with internal teams and vendors to resolve escalations.

Skills

Microsoft 365

Azure

Windows Server

Networking

Cybersecurity

Project management

Client communication

Tools

Entra ID

Intune

Active Directory

Job description

Job Title: IT Administrator

Industry: Information Technology / Managed IT Services

Location (city, state): Oklahoma City, OK

Pay: $90,000–$110,000 annually

Work Schedule: Monday–Friday, 8:00 AM–5:00 PM

Benefits: This position is eligible for medical, dental, vision, and 401(k).

About The Company:

Join a collaborative IT team supporting a variety of businesses, technologies, and infrastructure environments. This opportunity offers exposure to diverse technical challenges, ownership of infrastructure projects, and the ability to make a meaningful impact on client operations.

Job Description:

We are seeking an experienced Infrastructure Administrator to manage, secure, and optimize IT infrastructure across multiple client environments. This role focuses on Microsoft 365, Azure, systems administration, networking, cybersecurity, and infrastructure project implementation.

The ideal candidate has hands‑on experience with Microsoft cloud technologies, strong troubleshooting abilities, and the confidence to manage technical projects independently while working directly with clients and technical teams.

Key Responsibilities:

• Administer Microsoft 365, Azure, Entra ID, Intune, Active Directory, and related enterprise systems.
• Diagnose and resolve complex server, workstation, network, and cloud infrastructure issues.
• Maintain Windows Server environments, storage solutions, virtualization platforms, and endpoint systems.
• Configure and support network infrastructure, including firewalls, switches, wireless networks, and VPNs.
• Monitor system health, strengthen security measures, and maintain backup and recovery solutions.
• Execute infrastructure upgrades, cloud migrations, system deployments, and technology improvements.
• Develop and validate disaster recovery procedures and business continuity plans.
• Maintain accurate technical documentation and infrastructure standards.
• Identify opportunities to improve system performance, reliability, and security through proactive maintenance.
• Consult with clients to understand technology requirements, recommend solutions, and communicate project progress.
• Coordinate with internal teams and vendors to resolve escalated issues and complete technical projects.

Qualifications:

• Hands‑on experience administering Microsoft 365 and Azure environments.
• Knowledge of Windows Server, Windows desktop operating systems, Active Directory, Group Policy, DNS, and DHCP.
• Understanding of cloud infrastructure, identity management, endpoint administration, and access controls.
• Networking experience with TCP/IP, firewalls, switching, wireless connectivity, and VPNs.
• Experience implementing infrastructure solutions, performing migrations, or leading technical projects.
• Strong troubleshooting and root‑cause analysis skills.
• Excellent communication and documentation abilities, including experience working directly with clients.
• Ability to manage competing priorities, work independently, and collaborate with technical teams.
• Willingness to learn new technologies and adapt to different client environments.
• Ability to travel locally to client sites as needed.

Additional Details:

• Approximately 40 hours per week.
• Occasional after‑hours work may be required for scheduled maintenance, projects, or urgent technical issues.
• Local travel to client locations is required.
• Candidates must successfully complete a background check, drug screening, and driver's license verification.
• Contract‑to‑hire opportunity with the potential for long‑term employment.

Perks:

• Exposure to a broad range of technologies, industries, and infrastructure environments.
• Opportunities to take ownership of technical projects and expand infrastructure expertise.
• Collaborative team environment with opportunities for continued professional development.
• Certifications in Microsoft, Fortinet, networking, cloud, or cybersecurity are welcomed but not required.
• Experience with virtualization, automated backups, cloud storage, VoIP, EDR/MDR platforms, cybersecurity compliance, or managed IT services is a plus.

Addison Group is an Equal Opportunity Employer. Addison Group provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, genetic information, marital status, amnesty, or status as a covered veteran in accordance with applicable federal, state and local laws. Reasonable accommodation is available for qualified individuals with disabilities, upon request.