System Administrator II / System Administrator III – Hybrid – Chesterfield, MO (St. Louis)

About the role

Experitec is a company that values its employees and provides opportunities for growth and impact. This position is part of the IT team within Information Systems, with the specific titles of System Administrator II or System Administrator III. The level will be determined based on experience and competencies.

Responsibilities

• Administer and maintain Windows and Linux server environments.
• Manage and support Active Directory, Group Policy, DNS, and DHCP.
• Design, implement, and maintain enterprise infrastructure solutions.
• Administer virtualization platforms.
• Manage cloud environments (Microsoft Azure).
• Configure and maintain backup, disaster recovery, and business continuity solutions.
• Maintain high availability and disaster recovery solutions for critical business systems.
• Monitor system performance, capacity, and availability while proactively identifying and mitigating risks.
• Lead root cause analysis efforts for critical incidents and recurring problems.
• Implement security best practices, vulnerability remediation, and system hardening.
• Develop and maintain automation scripts using PowerShell, Bash, Python, or similar tools.
• Collaborate with network, security, cloud, and application teams on cross-functional initiatives.
• Evaluate new technologies and recommend infrastructure improvements.
• Ensure compliance with organizational policies, security requirements, and regulatory standards.
• Support high-availability and failover solutions for critical business systems.
• Perform capacity planning and infrastructure optimization to support business growth.

Requirements

• High School diploma or equivalent.
• Two or more years managing Windows Server in a production environment.
• Five or more years of IT experience.
• Three or more years as a System Administrator or equivalent.
• Experience deploying or managing virtual machines in VMware (vCenter or ESXI).
• Experience providing advanced technical support and serving as an escalation point for complex IT issues.
• Experience diagnosing and resolving server, operating system, storage, virtualization, and network-related problems.
• Ability to proactively identify business needs, troubleshoot, and resolve technical issues through creative problem solving.
• Experience establishing project timelines and detailing key milestones and tasks to achieve objectives.
• Experience administering and maintaining Windows and Linux server environments.
• One or more years of experience managing and supporting Active Directory, Group Policy, DNS, or DHCP.
• Experience designing, implementing, and maintaining enterprise infrastructure solutions.
• Experience administering virtualization platforms.
• Experience configuring and maintaining backup, disaster recovery, and business continuity solutions.
• One or more years of experience monitoring system performance, capacity, and availability while proactively identifying and mitigating risks.
• Experience leading root cause analysis efforts for critical incidents and recurring problems.
• Experience implementing security best practices, vulnerability remediation, and system hardening.
• Experience monitoring and managing patching, updates, and lifecycle maintenance of infrastructure components.
• Experience developing and maintaining automation scripts using PowerShell, Bash, Python, or similar tools.
• Ability to create and maintain technical documentation, standards, and operating procedures.
• Experience planning and executing infrastructure upgrades, migrations, and deployment projects.
• Ability to collaborate with network, security, cloud, and application teams on cross-functional initiatives.
• Ability to support enterprise storage systems, SAN/NAS technologies, and data management platforms.
• Ability to configure and maintain monitoring and alerting solutions.
• Ability to evaluate new technologies and recommend infrastructure improvements.
• Ability to ensure compliance with organizational policies, security requirements, and regulatory standards.
• Ability to support high-availability and failover solutions for critical business systems.
• Ability to perform capacity planning and infrastructure optimization to support business growth.
• Ability to effectively communicate (written and verbal) with internal customers and co-workers and to provide strong customer support through proactive solution development and time management.
• Ability to work Monday through Friday from 8am-5pm in the office three days per week and work remote two days per week.

Qualifications

• Ability to drive for the company with a valid driver’s license and the ability to pass driving record background check.
• Ability to utilize personal vehicle for the majority of work travel AND ability to rent a car when requested by supervisor for work travel.
• Ability to independently travel domestically up to 10% of the time, including overnights.
• Ability to lift more than 30 lbs.
• Comfort working with ambiguity, evolving projects, and leaders who think big and move fast.
• Ability to collaborate cross-functionally and be comfortable with ambiguity and evolving IT environments.
• Ability to work independently while managing competing priorities.

Skills

• Advanced troubleshooting expertise as the primary escalation point between Tier 1/2 support and senior IT staff.
• Hands-on management of enterprise servers, storage (SAN/NAS), and virtualization platforms.
• Automation of routine processes using PowerShell, Bash, or similar scripting tools.
• Secure, reliable administration of cloud environments (Microsoft Azure) and on-premises systems.
• Implementation of security best practices, vulnerability remediation, and patch management.
• Technical leadership on infrastructure projects, including migrations, upgrades, and deployments.
• High-availability and disaster recovery testing to protect business continuity.
• Documentation of technical procedures and knowledge transfer to empower the broader IT team.
• Collaboration with network, security, cloud, and application teams on cross-functional initiatives.

Benefits

No benefits information provided.

Pay

The salary range for this position is $75,000 - $100,000 annually, depending on experience and qualifications.

Schedule

This position requires a flexible schedule, with the first 6-12 months being five days in the office per week for training purposes. Afterward, the position will be split between three days in the office and two days remote.