Tech Firefly

Provide day-to-day system administration and troubleshooting for Linux and Windows environments to ensure operational stability and manage security and network infrastructure. | Strong proficiency in Linux and Windows administration, virtualization, storage technologies, ServiceNow CMDB, and strong communication skills. | We are seeking a Senior Systems Administrator to backfill and cover day-to-day system administration tasks while the core team focuses on a new imaging archive project. This role requires strong Linux/Windows administration skills, troubleshooting, documentation, and cross-functional communication. The ideal candidate is a proactive generalist who can manage diverse infrastructure tasks, triage tickets, and ensure operational stability. Contract Length: 1+ year Pay Rate: $70+/hour Location: San Francisco, CA (Hybrid, 2 days/week onsite) Responsibilities Assist in security scanning and apply security controls to prevent unauthorized access. Provide day-to-day system administration support, including troubleshooting, maintenance, and routine updates. Support system and network operations, including Windows Server 2019, Linux, RedHat, VMware, MSSQL, and Cisco IOS. Perform vulnerability assessments using Tenable and implement necessary security patches. Configure and manage firewalls and security policies (Palo Alto, Panorama). Maintain storage and backup systems (NetApp). Collaborate with cross-functional IT teams to ensure seamless integration and performance across applications and infrastructure. Monitor and respond to ServiceNow tickets, emails, and system alerts. Document system configurations, troubleshooting steps, and best practices. Assist with system upgrades, new software implementations, and rollouts. Participate in security risk assessments and compliance reviews. Strong system administration and troubleshooting experience Proficiency in Linux and Windows environments (50/50 split, stronger in Linux preferred) Experience with ServiceNow CMDB (updating records, reports, queries) Strong documentation and communication skills Experience with storage and virtualization technologies Ability to manage contingencies and audit application/system processes Self-starter with experience triaging and resolving diverse issues Nice to Haves Experience configuring networking switches Knowledge of imaging environments (not required, but helpful) Exposure to multi-cloud environments and virtualization-agnostic technologies Background in auditing and compliance processes Prior experience supporting large-scale application/software rollouts