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# System Infrastructure Engineer

- **Company:** Connexion Systems & Engineering
- **Location:** Shrewsbury, MA, United States
- **Experience:** Expert
- **Salary:** $150,000.0 - $170,000.0
- **Contract:** Permanent contract
- **Skills:** HTML, Active Directory, Backup Devices, Cisco PIX, Dynamic Host Configuration Protocol, Disaster Recovery, Domain Name System (DNS), VMware ESX Servers, Subnetting, Network Security, Visual Basic .NET (Programming Language), Windows Servers, NetApp Applications, Routing, Network Segmentation, Prism (Software), Remote Access Technology, Azure Active Directory, SQL Databases, TCP/IP, Virtual Local Area Networks, VMware VSphere, Software Vulnerability Management, Wireless Access Point, Firewalls (Computer Science), Microsoft InTune, Information Technology, Vcenter, Nutanix, Cisco, Vmware
- **Published:** November 5, 2026
- **Apply:** https://jobs.csetalent.com/index.smpl?arg=jb_apply&POST_ID=14394592

## About the Role

* Advanced knowledge of Windows Operating Systems current and legacy versions.
 * Managing at least 50 Windows Server infrastructure.
 * Experience with Microsoft Entra, Exchange, M365, Intune, and Defender.
 * Strong hands-on experience with VMware vSphere, ESXi, and vCenter.
 * Strong experience administering NetApp storage systems.
 * Advanced knowledge of Microsoft Windows Server 2019 or newer.
 * Strong knowledge of Active Directory, Group Policy, DNS, and DHCP.
 * Experience administering and troubleshooting Cisco ASA firewalls.
 * Strong knowledge of site-to-site and remote-access VPN technologies.
 * Strong understanding of TCP/IP, VLANs, subnetting, routing, switching, and network segmentation.
 * Hands-on experience supporting Cisco Meraki switches and wireless access points.
 * Strong understanding of cybersecurity principles, including infrastructure hardening, vulnerability management, patching, secure access, and network security.
 * Experience with backup, disaster recovery, and business continuity technologies.
 * Experience troubleshooting complex server, network, storage, firewall, VPN, and infrastructure problems.
 * Strong technical documentation and organizational skills.
 * Demonstrated ability to independently manage complex technical projects and issues.
 * Strong written and verbal communication skills.
 * Ability to communicate effectively with technical teams, business users, vendors, and management.

PREFFERED SKILLS/ABILITIES:

 * Ability to support a legacy VAX Environment.
 * SQL, VB.net, HTML Coding Skills.
 * Experience with Nutanix AHV, Prism Central, Prism Element, or Nutanix hyperconverged infrastructure is highly desirable., * Bachelor's degree in computer science (or related area) preferred.
 * 15 or more years of experience with advanced networking in a corporate environment.
 * One or more of the following certifications:
 * VMware Certified Professional (VCP)
 * Cisco CCNA or CCNP
 * Microsoft certifications
 * NetApp Certified Data Administrator
 * Nutanix Certified Professional
 * CISSP or similar cybersecurity certification

## Description

The Senior System Infrastructure Engineer will design, maintain, secure, and support our enterprise technology infrastructure. This is a hands-on senior technical role responsible for server virtualization, enterprise storage, Windows Server systems, networking, firewalls, VPN connectivity, wireless infrastructure, cybersecurity, and related technology platforms.
DUTIES/RESPONSIBILITIES:
The requirements listed below are representative of the essential duties required:

 * Design, install and configure internal and customer-facing servers, network devices, and firewalls.
 * Proactively manage and maintain the server, network, and firewall systems.
 * Administer and support Microsoft Exchange on premises and online.
 * Administer and support core Microsoft, Cisco, and VMware technologies.
 * Develop and implement project plans, risk assessments, and contingency plans.
 * Design and implement monitoring, configuration management, and reporting functions that will make a hands-off environment.
 * Define and document best practices and support procedures.
 * Provide after-hours support for Infrastructure related emergencies as well as occasional weekend maintenance.
 * Assist with hardware, firewall, telecom, and software vendor evaluation, recommendation, and negotiations.

 * Mentor/cross-train team members on existing and new technologies.
 * Carry out special tasks at Management's direction.
 * Interact with vendors and staff at the technical level, as required.
 * Other duties as assigned.

LEVEL OF RESPONSIBILITY:

 * Employee may work independently, but work is often reviewed by immediate supervisor.
 * Employee exercises broad discretion on matters of significance within functional areas.
 * Employee advises others within the organization on matters within area of expertise., Emily Donahue
Regional Recruiting Manager

 * Directs the recruitment efforts for both the Quincy, MA and Providence, RI branches.
 * Manages a distributed team of recruiting leads, individual contributor recruiters and account managers.
 * Responsible for leading the fulfillment and execution of sourcing, recruiting, sales and business development practices across the region.