L2 Systems Analyst

Comfort Systems USA; Dallas (TX); On-site; USD 65,000 - 90,000; Full time

Job summary

Comfort Systems USA in Dallas seeks an experienced L2 Systems Analyst to support enterprise systems, troubleshoot complex issues, and ensure reliability across IT operations.

The role escalates L1 incidents, collaborates with infrastructure, application, and security teams, and requires strong troubleshooting and communication skills. Candidates should have 3–5 years in IT support and a Bachelor’s degree. On-site role with potential for future cloud initiatives.

Qualifications

• 3–5 years in IT support, systems administration, or related roles.
• Hands-on experience with Windows and Linux server environments.
• Experience with Active Directory, DNS, and DHCP.
• Familiarity with ITSM/ticketing systems and ITIL concepts.
• Strong troubleshooting and analytical abilities.

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 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.

Skills

Windows Server

Linux environments

Active Directory

DNS

DHCP

Microsoft 365 administration

VMware / Hyper-V

TCP/IP / VPN / Firewalls

ITIL

Troubleshooting

Communication skills

Education

Bachelor’s degree in Information Technology, Computer Science, or related field

Tools

SolarWinds

Nagios

PowerShell

Bash

Job description

We are seeking a detail-oriented and proactive L2 Systems Analyst to join our IT Operations team. The L2 Systems Analyst will provide second-level technical support, troubleshoot complex system and application issues, and ensure stability, performance, and reliability of enterprise systems. This role acts as an escalation point for L1 support and works closely with infrastructure, application, and security teams to resolve incidents and implement system improvements.

Key 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.

Required Qualifications

• 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.

Preferred Qualifications

• 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).