Information Technology System Administrator

Recru; Houston (TX); Hybrid; USD 70,000 - 110,000; Full time

Job summary

An established industry player is seeking a skilled IT System Administrator to support critical infrastructure in a dynamic IT/OT environment. This role offers the chance to manage virtual server infrastructure, administer Active Directory, and ensure compliance with NERC CIP standards. You will collaborate with cybersecurity and SCADA teams to maintain system reliability and performance while implementing best practices in cybersecurity. Join a forward-thinking company that values innovation and offers flexible contract opportunities, allowing you to thrive in a collaborative environment while making a significant impact on operational technology systems.

Qualifications

• 5+ years of experience in IT System Administration in IT/OT environments.
• Strong background in managing virtual server infrastructure and Active Directory.

Responsibilities

• Maintain and manage virtual server infrastructure and Active Directory.
• Provide Tier 2/3 technical support for IT and OT systems.

Skills

IT System Administration

Active Directory

VMware

NERC CIP Standards

SCADA Systems

Cybersecurity Best Practices

Problem-solving

Communication Skills

Education

Relevant Certifications (e.g., MCSA, VMware, CompTIA Security+)

Tools

Microsoft Windows Server OS

VMware vSphere/ESXi

Job description

Direct message the job poster from Recru

Technical Recruiter @ Recru | IT Recruitment, Contract Hire Placement, Direct Hire Placement, Niche IT Positions

Position Overview

We are looking for a highly skilled IT System Administrator with at least 5 years of experience supporting infrastructure in a combined IT and Operational Technology (OT) environment. The ideal candidate will have a strong background in managing virtual server infrastructure, Active Directory administration, and providing hands-on support for IT/OT systems. Familiarity with NERC CIP standards, Microsoft Windows environments, VMware virtualization, and SCADA network architecture is essential for this role.

Key Responsibilities

• Maintain and manage virtual server infrastructure, including deployment, updates, and performance monitoring (VMware or similar platforms).
• Administer Active Directory, including user and group management, onboarding/offboarding processes, and Group Policy creation and enforcement.
• Provide Tier 2/3 hands-on technical support and troubleshooting for IT and OT systems across corporate and operational environments.
• Monitor and ensure system reliability, uptime, and performance across virtualized and physical infrastructure.
• Assist in the administration and documentation of systems in compliance with NERC CIP cybersecurity standards and protocols.
• Collaborate with network, cybersecurity, and SCADA teams to ensure secure and stable communication across IT/OT networks.
• Maintain up-to-date system documentation, diagrams, and operational procedures.
• Implement and enforce IT policies, procedures, and best practices, especially those related to cybersecurity and regulatory compliance.
• Participate in audits, assessments, and reviews related to system security and regulatory compliance.
• Support patch management, system upgrades, and backup/recovery operations.

Qualifications

• Minimum of 5 years of experience in IT System Administration within an IT/OT or Industrial Control Systems (ICS) environment.
• Proficient in Microsoft Windows Server OS, Active Directory, and Group Policy Management.
• Strong experience with VMware (vSphere/ESXi) or other virtualization platforms.
• Solid understanding of NERC CIP standards and compliance requirements.
• Familiarity with SCADA systems and network architecture is strongly preferred.
• Understanding of cybersecurity best practices within an industrial or critical infrastructure environment.
• Experience in system monitoring, incident response, and root cause analysis.
• Excellent problem-solving and communication skills.
• Ability to manage multiple priorities and work independently or as part of a team.
• Relevant certifications (e.g., MCSA, VMware, CompTIA Security+, or NERC CIP certification) are a plus.

Other Requirements:

• Candidate must be local to Houston or willing to relocate.
• Ability to go into office 2-3 days a week.
• Open to contract opportunities.
• Must be eligible to work W2 without sponsorship.

Seniority level

• Mid-Senior level

Employment type

• Contract

Job function

• Information Technology

Industries

• IT Services and IT Consulting