Senior Systems Engineer (MSP) in Mundelein

You’ll be a senior, hands-on engineer and the top technical escalation point above the help desk and field teams. You’ll own the technical standard, a single baseline for M365, network and security applied consistently across the client base. You’ll also lead projects from scoping through delivery. You’ll start by training alongside the engineers who built the security practice, and within about six months you’ll take over their escalations.

• 6+ years of Microsoft 365 and network engineering at an MSP or in a multi-tenant environment \n

• Hands-on experience deploying Conditional Access, Intune and Purview in client tenants \n

• Solid networking skills: firewalls, VLANs, VPN and Wi-Fi (SonicWall or Cisco is a plus), * A security-first mindset: Zero Trust, Defender for Endpoint and Office 365, MDR tooling, and a track record of improving Secure Score

n

• Own the architecture across the client base. M365, , endpoints, network, backup and security for a portfolio of client environments. You’ll know the state of a tenant before you open it. \n

• Take the escalations. Resolve them, document them, hand them back, and teach the front line so the next one doesn’t come to you. \n

• Deliver security and AI-readiness deployments. Tenant assessments, Purview, Conditional Access, Intune, Defender and Copilot readiness, typically about two weeks per client. \n

• Scope and deliver projects. Migrations, Intune rollouts, firewall replacements and M365 cleanups. Quote the hours, then hit them. \n

• Join account managers in client meetings. Handle the technical side and explain it in the client’s , not ours. \n

\n

\n

Landshark Recruiting is partnering with an established Managed Services Provider that supports 100+ businesses across the DC metro area. Alongside its managed services, the company has built a growing Microsoft 365 security and AI-readiness practice. That work helps clients secure their tenants so they can safely adopt tools like Copilot. The practice is scaling quickly, and this hire is a key part of that growth.