← Search all jobs

Senior System Infrastructure Engineer

PC Connection

Worcester, MA · Posted November 10, 2026

Just laid off? Start here: a plan for the first weeks

See every open role at PC Connection

More in Massachusetts job market · Technology & Software · Engineering jobs

More roles at PC Connection

Similar jobs

Where Worcester, MA ranks

Where Worcester, MA placed in our monthly rankings, month by month. Each month stays online at its own address.

How AI is used in this kind of work

Among computer occupations, all other, AI is already used for a large share of the tasks. Measured exposure for computer occupations, all other: 31% (high).

Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.

Check how this applies to your own job

Skills this job asks for

Say which you have and which you want to build. We use it to match you to jobs like this one.

About the job

Overview

Connection has a fantastic opportunity through our Technical Staffing division for a Sr Infrastructure Engineer. This is a full-time position with benefits.

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.

Min

Max

Qualifications

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.

Preferred Qualifications

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.

Because of the possibility for fraudulent job postings on many popular job boards, please be advised that Connection will never offer a position of employment without a complete interview process and communication with a “live person".