Senior Systems and Network Engineer

Tabush Group; New York (NY); Hybrid; USD 110,000 - 170,000; Full time

Job summary

Tabush Group, a NYC-based MSP, seeks a Senior Systems and Network Engineer to lead advanced troubleshooting, manage complex infrastructures across networks, servers, and cloud environments. The role is full-time and hybrid, based in our New York City office, offering a long-term opportunity to impact MSP operations.

You will oversee Microsoft 365, Entra ID, virtualization platforms, and core Windows services while mentoring junior engineers, writing SOPs, and driving improvements across security

Qualifications

• 8+ years experience in MSP or enterprise IT role.
• Expert-level knowledge of Microsoft 365 (Exchange Online, Entra ID, Intune, SharePoint, Teams)
• Strong experience with Windows Server, Active Directory, and Azure
• Advanced networking knowledge: firewalls, VLANs, routing, switching, VPNs, SD-WAN, and wireless
• Hands-on experience with backup and disaster recovery (Datto, Veeam, or similar)
• Strong background in virtualization (VMware vSphere/ESXi, Hyper-V), including clustering and high availability
• Experience with the full MSP stack: RMM, PSA, EDR, and MDR (Autotask, Datto RMM, ConnectWise, N-central, Auvik, SentinelOne, Huntress, or similar)
• Proven automation experience with PowerShell or other scripting tools
• Solid understanding of security best practices
• Some Linux experience is a plus
• Able to work independently, lead complex issues, and own them from start to finish
• Strong documentation skills and clear communication with technical and non-technical people
• Certifications such as CCNA, Microsoft, or firewall vendor certifications are a plus

Responsibilities

• Lead advanced troubleshooting and root cause analysis on complex infrastructure issues
• Configure and manage firewalls, switches, VPNs, and wireless (SonicWall, Meraki, HP, or similar)
• Manage network security, including segmentation, IDS/IPS, and content filtering
• Administer and improve backup, disaster recovery, and business continuity solutions
• Manage Microsoft 365, Entra ID (Azure AD), and virtualization platforms (VMware, Hyper-V)
• Manage core Windows Server services: Active Directory, Group Policy, DNS, DHCP, and file services
• Secure user access with MFA, Conditional Access, SSO, and role-based access
• Manage and improve our MSP tool stack, including RMM, PSA, EDR, and MDR platforms
• Build automation and scripts (PowerShell or similar) to reduce manual work and improve operations
• Respond to critical alerts, outages, and escalations
• Take ownership of complex issues and drive them through to resolution
• Serve as the top escalation point and mentor junior engineers
• Write clear SOPs, runbooks, and network diagrams, and keep detailed ticket notes

Skills

MS 365

Windows Server

Networking

PowerShell

Automation

Security best practices

VMware/Hyper-V

RMM/PSA tools

Documentation

Linux basics

Tools

Autotask

Datto RMM

ConnectWise

N-central

Auvik

SentinelOne

Job description

Job Title: Senior Systems and Network Engineer

Watch a quick 60-second video about this role: https://somup.com/cO6j2kVe7RH

About Us & The Role:
We’re a NYC based MSP. Our culture is built on care, innovation, integrity, and teamwork. We’re looking for a Senior Systems and Network Engineer with strong MSP experience to lead complex troubleshooting, manage advanced infrastructures, and drive improvements across networks, servers, and cloud environments. This is a full-time, hybrid role based in our New York City office and a long-term opportunity where your expertise will make a big impact.

What You’ll Do

• Lead advanced troubleshooting and root cause analysis on complex infrastructure issues


• Configure and manage firewalls, switches, VPNs, and wireless (SonicWall, Meraki, HP, or similar)


• Manage network security, including segmentation, IDS/IPS, and content filtering


• Administer and improve backup, disaster recovery, and business continuity solutions


• Manage Microsoft 365, Entra ID (Azure AD), and virtualization platforms (VMware, Hyper-V)


• Manage core Windows Server services: Active Directory, Group Policy, DNS, DHCP, and file services


• Secure user access with MFA, Conditional Access, SSO, and role-based access


• Manage and improve our MSP tool stack, including RMM, PSA, EDR, and MDR platforms


• Build automation and scripts (PowerShell or similar) to reduce manual work and improve operations


• Respond to critical alerts, outages, and escalations


• Take ownership of complex issues and drive them through to resolution


• Serve as the top escalation point and mentor junior engineers


• Write clear SOPs, runbooks, and network diagrams, and keep detailed ticket notes

Requirements

• 8+ years experience in MSP or enterprise IT role

• Expert-level knowledge of Microsoft 365 (Exchange Online, Entra ID, Intune, SharePoint, Teams)


• Strong experience with Windows Server, Active Directory, and Azure


• Advanced networking knowledge: firewalls, VLANs, routing, switching, VPNs, SD-WAN, and wireless


• Hands‑on experience with backup and disaster recovery (Datto, Veeam, or similar)


• Strong background in virtualization (VMware vSphere/ESXi, Hyper‑V), including clustering and high availability


• Experience with the full MSP stack: RMM, PSA, EDR, and MDR (Autotask, Datto RMM, ConnectWise, N‑central, Auvik, SentinelOne, Huntress, or similar)


• Proven automation experience with PowerShell or other scripting tools


• Solid understanding of security best practices


• Some Linux experience is a plus


• Able to work independently, lead complex issues, and own them from start to finish


• Strong documentation skills and clear communication with technical and non-technical people


• Certifications such as CCNA, Microsoft, or firewall vendor certifications are a plus

We strongly encourage applicants to include a short introduction video, as it significantly strengthens your application.