Senior System Administrator
Core
Manage and support on-premises and cloud IT infrastructure, focusing on high availability, cybersecurity, and scalable solutions for enterprise environments.
Role type
Senior System Administrator (Infrastructure & Security)
Builds
On-premises and cloud IT infrastructure, security controls, automation scripts, and disaster recovery plans.
Domain
Enterprise IT, Cloud (Azure), Cybersecurity
Deliverable
production ML models | product features | dashboards & analysis | infrastructure
Required skills
Microsoft 365 administration, Azure AD management, cybersecurity controls, cloud platform expertise, PowerShell scripting, virtualization, networking, enterprise backup solutions, storage technologies
Preferred skills
Bachelors degree in Computer Information Systems, Microsoft 365 or MCSE certifications
Technologies
Active Directory, Azure, Cloud Support, Microsoft 365, Network, PowerShell, Security, SharePoint, VMware, Veeam, Office 365, AI, Machine Learning
Responsibilities
Manage and support on-premises and cloud IT infrastructure including networking, servers, Active Directory, Azure, Microsoft 365, and cybersecurity tools. Act as the primary escalation point for IT issues, partnering with vendors and resolving complex technical problems. Design, implement, and improve maintenance plans for performance monitoring, patching, disaster recovery testing, and automation. Promote cybersecurity best practices such as MFA, least-privilege access, conditional access, and secure configurations. Lead system replacement and upgrade initiatives to align IT capabilities with business objectives. Document IT processes, policies, and configurations including network diagrams, patching, disaster recovery, and security controls. Configure and administer firewalls, switches, wireless access points, VPNs, and related networking equipment. Monitor and respond to system and security alerts from tools such as Proofpoint and CrowdStrike. Deploy and maintain backup and recovery solutions to protect data integrity and support business continuity. Develop and maintain PowerShell scripts and other automation tools to reduce repetitive work. Perform regular network audits and implement remediation actions where needed. Manage endpoint configuration tools, such as Automox, to keep systems secure and compliant. Deliver responsive support to internal stakeholders and resolve IT issues in a timely manner. Create and update technical documentation using tools such as Microsoft Visio, Word, and PowerPoint. Stay current on emerging technologies and recommend solutions that fit our needs. Train, mentor, and guide junior team members and support staff.
Seniority
Senior, hands-on IC