Senior System Administrator

Senior System Administrator (US-Based) Location: United States (Remote) Experience: 8–12+ Years 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 applications Act as escalation point for complex access, performance, and integration issues Perform root cause analysis (RCA) and drive permanent fixes Administer enterprise SaaS platforms including Okta, Google Workspace, Microsoft 365, ServiceNow, SolarWinds, Slack, Zoom, HRIS, and ChatGPT Enterprise Lead Identity & Access Management (SSO, MFA, lifecycle automation, least-privilege enforcement) Manage incidents, SLAs, monitoring, and documentation within ITSM tools Support AWS environments (EC2, IAM, security groups, storage) and Docker-based applications Drive automation for onboarding/offboarding and access workflows Support security audits and compliance initiatives (SOC 2, HIPAA, GDPR) Required Qualifications: 8–12+ years of experience in Systems Administration or Senior IT Support Strong hands-on experience with Okta, SolarWinds, ServiceNow, Google Workspace, Microsoft 365, AWS, and Docker Experience supporting production SaaS and cloud environments Strong troubleshooting, incident management, and RCA skills Knowledge of Windows/Linux administration and networking fundamentals Excellent communication skills and ability to work cross-functionally BigR.io