Senior System Infrastructure Engineer

Connection; Worcester (MA); On-site; USD 130,000 - 170,000; Full time

Job summary

Connection, Inc. in Worcester, MA, is seeking a Senior Systems Infrastructure Engineer to design, implement, secure, and maintain enterprise IT infrastructure. This hands-on role covers Windows Server environments, virtualization, storage, networking, firewall, Microsoft 365, and cybersecurity.

You will lead complex projects, mentor teammates, and collaborate with vendors and stakeholders, with after-hours support as needed. A 15+ year track record and strong engineering discipline are required.

Qualifications

• 15+ years of experience in enterprise IT infrastructure and advanced networking.
• 50+ Windows servers managed, including Server 2019 or newer.
• Hands-on with VMware vSphere, ESXi, and vCenter.
• Experience administering NetApp storage.
• Strong knowledge of M365, Entra ID, Defender, Exchange, AD, and GPO.
• Experience with Cisco ASA firewalls, VPNs, and Meraki networking.
• Solid understanding of TCP/IP, VLANs, routing, switching, and cybersecurity.
• Experience with backup, disaster recovery, and business continuity.
• Excellent troubleshooting, documentation, project management, and communication skills.

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.

Skills

Windows Server

VMware vSphere

NetApp

Microsoft 365

Intune

Exchange

Active Directory

DNS

DHCP

GPO

Cisco ASA

VPN

Meraki

Cybersecurity

Backup & DR

Project management

Documentation

Communication

Education

Bachelor's degree in Computer Science

Tools

VMware vCenter

ESXi

Cisco Meraki

Microsoft Entra ID

Defender

Job description

Introduction

Managed Services / LCS / Staffing

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.

Requirements

• 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.