L2 Systems Analyst

Comfort Systems USAHouston, TX

About The Position

This role involves providing Level 2 technical support for enterprise systems, applications, and infrastructure. The L2 Systems Analyst will investigate, diagnose, and resolve escalated incidents, perform root cause analysis, and monitor system performance. Responsibilities also include maintaining Windows/Linux servers, managing user access, supporting patch management, and collaborating with vendors. The position requires creating and maintaining technical documentation and participating in on-call rotation. Comfort Systems USA is a leading building and service provider for mechanical, electrical, and plumbing building systems, with over 45 operating companies in more than 170 locations across the United States, offering career opportunities from entry-level to experienced professionals.

Requirements

  • Bachelor’s degree in Information Technology, Computer Science, or related field (or equivalent experience).
  • 3–5 years of experience in IT support, systems administration, or related role.
  • Strong knowledge of: Windows Server and/or Linux environments
  • Active Directory, DNS, DHCP
  • Microsoft 365 administration
  • Virtualization technologies (VMware / Hyper-V)
  • Basic networking concepts (TCP/IP, VPN, firewalls)
  • Experience with ticketing systems and ITSM frameworks (ITIL preferred).
  • Strong troubleshooting and analytical skills.
  • Excellent written and verbal communication skills.

Nice To Haves

  • Experience with cloud platforms (Azure, AWS, or GCP).
  • Familiarity with scripting (PowerShell, Bash).
  • Experience with monitoring tools (e.g., SolarWinds, Nagios).
  • ITIL Foundation certification.
  • Relevant certifications (Microsoft, CompTIA, VMware).

Responsibilities

  • Provide Level 2 technical support for enterprise systems, applications, and infrastructure.
  • Investigate, diagnose, and resolve escalated incidents from L1 support.
  • Perform root cause analysis and document findings.
  • Monitor system performance, availability, and capacity.
  • Maintain and support Windows/Linux servers and cloud environments.
  • Manage user access, permissions, and identity services (e.g., Active Directory).
  • Support patch management, system upgrades, and change management activities.
  • Collaborate with vendors and third-party providers for issue resolution.
  • Create and maintain technical documentation, runbooks, and knowledge base articles.
  • Participate in on-call rotation and incident response when required.
  • Ensure compliance with IT policies, security standards, and regulatory requirements.
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