> Markdown version of [/jobs/ext/2831394-it-systems-administrator](https://www.wearedevelopers.com/jobs/ext/2831394-it-systems-administrator). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# IT Systems Administrator

- **Company:** INTELLIVO LLC
- **Location:** Creve Coeur, MO, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Microsoft Azure, Cyber Security, Monitoring of Systems, Information Technology Operations, Network Troubleshooting, Windows Servers, Security Information and Event Management, Software Engineering, Office365, Software Troubleshooting, Information Technology, Patch Management, SQL Server Management Studio (SSMS), Vmware
- **Published:** September 10, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=aabe3691cafb5c4b

## About the Role

* Bachelor's degree in Information Technology, Computer Science, or related field-or equivalent certifications and experience.
 * 3+ years of relevant IT systems administration experience.
 * Experience evaluating and responding to security risks and vulnerabilities.
 * Proficiency with:
 + AlertLogic or similar SIEM tools
 + Windows Server & Windows OS
 + Azure Administration
 + O365 Administration
 + VMware
 + Patch Management solutions
 + SQL Server Management Studio (SSMS)
 * Strong troubleshooting and diagnostic abilities across networking, systems, and security environments.
 * Understanding of ISO27001:2013 controls and security best practices.

Professional Skills

 * Excellent verbal and written communication skills.
 * Strong organizational and multitasking abilities in a high-volume environment.
 * Detail-oriented with excellent critical thinking and problem-solving skills.
 * Self-motivated, adaptable, and capable of working independently or collaboratively.

## Description

The IT Systems Administrator is responsible for administering, maintaining, securing, and troubleshooting Intellivo's IT systems, networks, and endpoint technologies. This role ensures that internal systems operate securely, reliably, and efficiently while supporting compliance, infrastructure maturity, and operational readiness across the organization.

The Systems Administrator works closely with Security, Infrastructure, Engineering, and all business units to support end users, improve IT environments, strengthen ISO27001 controls, respond to security alerts, and ensure IT systems are hardened and well-documented. This role also serves as an escalation point and technical leader for junior network, systems, and security staff.

Core Responsibilities:

Systems Administration & User Support

 * Administer core IT systems, including O365, Windows Server, VMware environments, and corporate endpoints.
 * Troubleshoot user hardware and software issues and provide hands-on support when needed.
 * Assist in hardening new systems and ensuring secure configuration baselines.
 * Onboarding and Offboarding users

Security Monitoring, Hardening & Patch Management

 * Administer endpoint protection solutions and respond to security alerts across systems.
 * Assist with patch management for servers, endpoints, applications, and infrastructure devices.
 * Identify and repair vulnerabilities, security issues, systems failures, and network problems.

Network Troubleshooting & Support

 * Troubleshoot on-prem and cloud network issues and contribute to creating resilient networking solutions.
 * Assist with implementing new network configurations and improvements as needed.

Compliance, Audits & Documentation

 * Assist with ISO 27001:2013 compliance efforts and related audit documentation.
 * Support client security audits and respond to audit requests.
 * Manage, maintain, and create IT policies, procedures, and documentation.

Escalation & Technical Leadership

 * Serve as an escalation point and informal leader to Junior Network, Systems, and Security staff.
 * Provide technical mentorship, guidance, and support across IT operations.

Information Security Awareness & Communication

 * Participate in developing communications and staff awareness campaigns related to security best practices.
 * Support security governance efforts with proactive recommendations and user education.

Systems Monitoring & Improvements

 * Implement and respond to alerts from various system monitoring tools, including Security Information & Event Management (SIEM) platforms.
 * Research, recommend, and help implement new IT and security solutions to improve reliability and security.Additional Duties & Availability

Perform other related duties as assigned to support IT Operations.

 * Work after hours as needed to support upgrades, emergency troubleshooting, or scheduled maintenance.