Senior Network Engineer – Lead MSP Infra & Cloud

Systems Integration Inc.; Wallingford (CT); On-site; USD 120,000 - 150,000; Full time

Job summary

Systems Integration Inc. is seeking a Level 3 Senior Network Engineer for an in‑person role based in Wallingford, CT. You will lead complex IT infrastructure implementations, act as escalation for junior techs, and support on-site and client projects across MSP environments.

The ideal candidate has 5+ years in MSP settings, strong Windows Server/AD/Azure/M365 skills, and solid networking, virtualization, and security expertise. Travel to the Wallingford office is required five days per week.

Qualifications

• 5+ years of progressive IT experience in an MSP or multi-client environment.
• Strong technical proficiency in Windows Server environments, Active Directory, Azure, and M365 administration.
• Advanced knowledge of networking concepts (firewalls, routing, switching, VLANs, SD-WAN).
• Experience implementing and supporting virtualization platforms (VMware, Hyper‑V).
• Expertise with endpoint security, patching, and RMM tools.

Responsibilities

• Lead the implementation and support of complex IT infrastructure projects (server migrations, network redesigns, cloud transitions).
• Configure and troubleshoot advanced network devices (firewalls, Layer 2/3 switches, VLANs, VPN tunnels, routing policies).
• Deploy and manage Microsoft 365 services (Exchange Online, Teams, SharePoint, Intune, Conditional Access).
• Administer Azure AD, Azure VMs, Group Policy, DNS/DHCP, file/print services, and hybrid environments.

Job description

Systems Integration Inc. is seeking a Level 3 Senior Network Engineer for an in‑person role based in Wallingford, CT. You will lead complex IT infrastructure implementations, act as escalation for junior techs, and support on-site and client projects across MSP environments.

The ideal candidate has 5+ years in MSP settings, strong Windows Server/AD/Azure/M365 skills, and solid networking, virtualization, and security expertise. Travel to the Wallingford office is required five days per week.