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# Senior System Infrastructure Engineer

- **Company:** Connection, Inc.
- **Location:** Worcester, MA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** HTML, Microsoft Windows, Active Directory, Systems Engineering, Backup Devices, Cisco PIX, Cyber Security, Information Systems, Dynamic Host Configuration Protocol, Disaster Recovery, Domain Name System (DNS), VMware ESX Servers, Internet Security, Virtual Private Networks (VPN), Network Troubleshooting, Microsoft Software, Visual Basic .NET (Programming Language), Windows Servers, NetApp Applications, Network Architecture, Routing, Network Segmentation, Azure Active Directory, SQL Databases, TCP/IP, Virtual Local Area Networks, Virtualization Technology, VMware Virtualization, VMware VSphere, Software Vulnerability Management, Wireless Networks, Hyperconverged Infrastructure, Firewalls (Computer Science), Microsoft InTune, Information Technology, Cisco Firewalls, Vcenter, Data Management, Nutanix, Network Server, Cisco, Vmware
- **Published:** November 7, 2026
- **Apply:** https://www.careerbuilder.com/job-details/senior-system-infrastructure-engineer-worcester-ma--476b8ffc-0db3-429b-a7ff-f73575373538

## About the Role

Systems Engineering, Technical Recruiting, Information Technology & Information Systems, Microsoft Product Family, Internet Security, Virtualization, Microsoft Windows Server, Firewalls, Systems Engineering, Technical Support, * 15+ years of experience in enterprise IT infrastructure and advanced networking.

 * Strong experience managing 50+ Windows servers, including Windows Server 2019 or newer.
 * Hands-on expertise with VMware vSphere, ESXi, and vCenter.
 * Experience administering NetApp enterprise storage.
 * Strong knowledge of Microsoft Entra ID, Exchange, M365, Intune, Defender, Active Directory, Group Policy, DNS, and DHCP.
 * Experience with Cisco ASA firewalls, site-to-site and remote-access VPNs, and Cisco Meraki networking.
 * Strong understanding of TCP/IP, VLANs, routing, switching, network segmentation, and cybersecurity.
 * Experience with backup, disaster recovery, and business continuity solutions.
 * Excellent troubleshooting, documentation, project management, and communication skills., * Experience with Nutanix AHV and hyperconverged infrastructure.
 * Familiarity with legacy VAX environments.
 * SQL, VB.NET, or HTML coding experience.
 * Bachelor's degree in Computer Science or a related field preferred.
 * Relevant certifications such as VMware VCP, Cisco CCNA/CCNP, Microsoft, NetApp, Nutanix, or CISSP.

## Description

Seeking a highly experienced Senior Systems Infrastructure Engineer to design, implement, secure, and maintain enterprise IT infrastructure. This is a hands-on senior technical role supporting Windows Server environments, virtualization, enterprise storage, networking, firewalls, Microsoft 365, and cybersecurity.

Applicants must be authorized to work for any employer in the U.S. We are unable to sponsor or take over sponsorship of an employment visa at this time.
Responsibilities:

 * Design, configure, and maintain enterprise servers, network infrastructure, firewalls, and storage systems.
 * Manage and support Windows Server environments, VMware virtualization, Microsoft 365, Exchange, and Active Directory.
 * Administer Cisco firewalls, VPN connectivity, Meraki switches, and wireless infrastructure.
 * Implement infrastructure security, patching, vulnerability management, monitoring, backup, and disaster recovery solutions.
 * Lead complex infrastructure projects, develop technical plans, and proactively troubleshoot system issues.
 * Establish technical standards, documentation, and best practices while mentoring team members.
 * Coordinate with vendors and internal stakeholders on infrastructure solutions and technology recommendations.
 * Provide occasional after-hours and weekend support for critical infrastructure needs.