Job Opportunities API

We are seeking a highly skilled and experienced Senior Systems Administrator to serve as the primary escalation resource and senior technical contributor within our IT team. This role is responsible for advanced troubleshooting, Microsoft 365 administration, security configuration, and root-cause analysis across cloud, endpoint, and infrastructure systems. This individual will work closely with IT leadership to evaluate architectural improvements, provide technical recommendations, and execute approved changes. While IT leadership retains final authority on major technical decisions, this role is expected to operate with a high degree of autonomy and technical ownership in day-to-day operations. The Senior Systems Administrator will serve as the escalation point for complex issues beyond Tier 1 and Tier 2 support while also contributing to strategic technical initiatives. This role requires strong written and verbal communication skills and the ability to collaborate effectively across time zones. Key Responsibilities Microsoft 365 Administration & Architecture Administer and optimize Microsoft 365 services including but not limited to: Exchange Online SharePoint Online Microsoft Teams Entra ID (Azure AD) Microsoft Defender & Security tools Implement and manage security policies, conditional access, and compliance controls Recommend architectural improvements and best practices for approval Execute configuration changes and platform enhancements Monitor tenant health, security posture, and performance Advanced Technical Support & Escalation Serve as Tier 3 escalation point for complex technical issues Perform deep root-cause analysis across: Windows 10/11 endpoints Identity and authentication systems Microsoft 365 services Troubleshoot persistent or recurring performance issues Lead deep-dive troubleshooting efforts to identify systemic or environmental causes of issues that persist across hardware replacement or re-provisioning Tier 1 & Tier 2 Coverage Support Provide Tier 1 and Tier 2 end-user support when support technicians are unavailable or out of office Assist with ticket backlog management during peak periods Serve as a technical mentor and escalation resource for support technicians when they encounter complex or unfamiliar issues Ensure continuity of service and timely resolution of user issues Maintain a team-oriented approach to shared service delivery Systems & Endpoint Management Manage endpoint configuration and policies Support device management platforms (e.g., Intune, Group Policy) Diagnose OS-level issues, startup performance problems, and system conflicts Maintain system documentation and technical standards Technical Projects & Platform Initiatives Lead and execute technical projects within the Microsoft 365 ecosystem and broader IT environment Evaluate new technologies, platform changes, and service enhancements; provide technical analysis and recommendations to IT leadership Plan and implement system migrations and service transitions Manage configuration changes and feature rollouts that impact end users Assess user impact and operational risk when introducing platform changes Develop implementation plans including testing, communication support, and rollback strategies when appropriate Ensure projects are completed with minimal business disruption and aligned to security and compliance standards Document architecture decisions, configurations, and project outcomes Participate in occasional AWS-related initiatives; prior AWS experience is beneficial but not required, as training will be provided Security & Best Practices Assist in strengthening Microsoft 365 security posture Monitor and respond to security alerts Participate in improving access control, MFA enforcement, and device compliance Support vulnerability mitigation and system hardening efforts Collaboration Communicate technical