IT Systems Administrator

TELESOFT LLC DBA CALERO•City of Rochester, NY

1d•$70,000 - $80,000•Hybrid

About The Position

Calero, the leading technology expense management solution for complex enterprises, is looking for an IT Systems Administrator for their Rochester, NY location. This is an in-office hybrid role. Candidates must be able to work from the Rochester office a minimum of 3 days per week. The role of IT Systems Administrator is to provide technical administration and support across the organization, ensuring the stability, security and availability of IT systems and services. The IT Systems Administrator is responsible for managing and resolving complex incidents and service requests escalated beyond first-line support. This includes diagnosing and resolving complex system and access‑related issues, administering identity and access controls, configuring and managing Microsoft 365 services, and maintaining endpoint configuration standards. The role includes responsibility for server and cloud administration activities such as provisioning and managing virtual machines, maintaining on‑premises and cloud infrastructure, supporting Active Directory and Azure AD, monitoring system health, and supporting fault diagnosis and resolution. The IT Systems Administrator is also expected to contribute to operational improvements, documentation, automation, and adherence to IT standards and security best practices.

Requirements

A minimum of 3 years’ related experience.
Experience administering Microsoft 365 services (Exchange Online, SharePoint Online, Intune, Entra ID, Microsoft Defender), together with Azure infrastructure, VMware and HyperV virtualization, Veeam backup solutions, and Tanium.
Worked in a similar role
Working knowledge of Microsoft 365 and Azure services used in day‑to‑day system administration
Strong working knowledge of Windows client and server platforms
Confident administration of users, groups and computers in AD and Microsoft Entra ID
Good understanding of TCP/IP fundamentals and common services (DNS, DHCP, HTTP/HTTPS)
Experience supporting on‑premises and virtualized systems
Working knowledge of PowerShell for administration and troubleshooting
Security‑focused approach to system administration and access control
Strong problem‑solver, able to resolve and document issues independently
Completer‑finisher approach to tasks
Clear written and verbal communication skills
Able to work independently and as part of a team

Responsibilities

Provide second and third line technical support for escalated incidents and service requests where required, ensuring issues are resolved effectively and in line with agreed service levels.
Own the technical investigation and coordination of resolutions for complex issues across endpoints and servers, including remediation and documentation.
Manage and priorities assigned incidents and requests based on urgency, impact and business priority.
Own administration of the endpoint environment within agreed standards, identifying improvements and driving recommendations through review.
Administer and support identity and access management processes, including user, group and computer objects within Active Directory and Azure AD.
Plan and execute endpoint and server upgrades, including operating system and application patching during agreed maintenance windows, in line with lifecycle, performance and security requirements.
Remediate identified vulnerabilities across endpoints, servers and cloud platforms, prioritized in line with security guidance and risk.
Be accountable for the lifecycle management of virtual machines across on-premises, datacenter and cloud environments, including Azure and AWS, ensuring appropriate backup and recovery coverage.
Support and maintain server and cloud infrastructure, monitoring system health and investigating alerts using logs and monitoring tools.
Perform basic proactive performance optimization across servers and cloud resources, identifying inefficiencies and recommending improvements.
Analyze recurring incidents and problem trends, implementing fixes to reduce repeat issues and improve service stability.
Maintain and improve technical documentation, procedures and standards within the Support Wiki.
Design and implement automation and scripting to improve operational efficiency and reliability.
Proactively monitor services using approved tools, identifying and responding to service degradation or outages.
Escalate complex or systemic issues to senior IT or engineering teams where required, providing clear technical analysis and supporting evidence.
Ensure compliance with IT policies, security standards and best practices, contributing to continuous improvement of operational processes.
Perform other reasonable duties as required.