Senior Systems Engineer

About Grassi

After more than 40 years of business growth and industry change, Grassi has redefined what it means to be an advisor and accountant to today’s businesses and individuals. Nationally ranked as one of the largest and fastest-growing accounting firms in the nation, Grassi is a leading provider of advisory, tax, and accounting services across key sectors including construction, architecture and engineering, not‑for‑profit, healthcare, manufacturing and distribution, financial services, real estate, and more.

Several publications have ranked us among the top accounting firms to work for, highlighting our strength in work‑life balance, culture, and wellness categories.

With over 550 employees and eleven offices spanning the New York Metropolitan Area, Long Island, the Northeast, Florida, New England, Denver and an international presence in Italy, we are strategically positioned to serve clients locally and globally. In 2023, Grassi became an employee‑owned company by implementing an ESOP, establishing our independence and empowering our people to drive the firm’s future success.

The ESOP ensures that equity partners and all Grassi U.S. employees have the exclusive opportunity to own the firm’s stock, making them integral to the company’s future.

We are currently seeking a Senior Systems Engineer to join our team in either our Park Ridge, NJ or Jericho, NY office location. This is a fully onsite position, five days per week in the office. This role offers an exciting opportunity to be part of a dynamic and growing firm.

• Serve as the final service desk escalation point for complex incidents involving Microsoft 365, identity services, secure remote access, endpoint protection, virtual desktop platforms, profile management, printers, security alerts, and firm applications.
• Lead root cause analysis for recurring, high‑impact, or deadline‑sensitive issues and implement durable corrective actions.
• Support technical delivery for endpoint, application, Microsoft 365, secure access, identity, infrastructure, security improvement, and modernization initiatives.
• Create and maintain configuration standards, operational runbooks, recovery procedures, troubleshooting guides, and knowledge articles.
• Mentor Level 1 and Level 2 personnel, improve escalation quality, and provide practical knowledge transfer.
• Coordinate with vendors, consultants, application owners, security resources, business stakeholders, and IT leadership.
• Identify technical debt, availability risks, capacity constraints, configuration weaknesses, and opportunities for automation or standardization.
• Participate in after‑hours maintenance and critical incident response when business needs require it.

• Cloud, Virtual Desktop, Microsoft 365, and Identity
• Administer and troubleshoot cloud services, including virtual machines, storage, networking, remote connectivity, monitoring, logging, backup, disaster recovery, and related services.
• Provide advanced support for virtual desktop environments and user profiles, including access, application delivery, printing, performance, capacity, and user experience.
• Administer Microsoft 365, including Exchange Online, Teams, Teams Phone, SharePoint Online, One Drive, Outlook, Microsoft 365 Apps, Copilot, licensing, mailboxes, groups, and permissions.
• Support identity and access management, including users, groups, enterprise applications, access policies, sign‑in issues, and access troubleshooting.
• Assess technical dependencies and business risk before changes and develop implementation, validation, and rollback plans.
• Access, Networking, and Endpoint Support
• Support secure remote access, DNS, network connectivity, and…