Senior System Administrator (US-Based)Location: United States (Remote)Job Summary: We are seeking a Senior System Administrator to lead L2/L3 support for business-critical applications, enterprise SaaS platforms, and AWS environments. This role requires strong expertise in Identity & Access Management, ITSM operations, SaaS administration, and cloud support. You will serve as a senior escalation point, ensuring system stability, security, compliance, and operational excellence across production environments while collaborating with Engineering, DevOps, and Security teams.Key Responsibilities:Own L2/L3 support for production and non-production applicationsAct as escalation point for complex access, performance, and integration issuesPerform root cause analysis (RCA) and drive permanent fixesAdminister enterprise SaaS platforms including Okta, Google Workspace, Microsoft 365, ServiceNow, SolarWinds, Slack, Zoom, HRIS, and ChatGPT EnterpriseLead Identity & Access Management (SSO, MFA, lifecycle automation, least-privilege enforcement)Manage incidents, SLAs, monitoring, and documentation within ITSM toolsSupport AWS environments (EC2, IAM, security groups, storage) and Docker-based applicationsDrive automation for onboarding/offboarding and access workflowsSupport security audits and compliance initiatives (SOC 2, HIPAA, GDPR)Required Qualifications:8–12+ years of experience in Systems Administration or Senior IT SupportStrong hands-on experience with Okta, SolarWinds, ServiceNow, Google Workspace, Microsoft 365, AWS, and DockerExperience supporting production SaaS and cloud environmentsStrong troubleshooting, incident management, and RCA skillsKnowledge of Windows/Linux administration and networking fundamentalsExcellent communication skills and ability to work cross-functionally