On-Site Technical Infrastructure Engineer

Job Type

Full-time

$70,000 – $95,000 base salary, plus on-call and after-hours/weekend bonuses

Do you want your technical expertise to directly shape how businesses run more securely, efficiently, and confidently? Do you thrive on solving complex problems, then turning around and making the engineers around you better? Are you ready for a senior role at a company where strong engineers move into architecture and leadership, not sideways into another support queue?

If that sounds like you, keep reading.

Why SSR

SSR Total IT is a 30-year-established MSP where engineers are the business, not a support function. You'll own client environments, lead infrastructure projects, and act as a trusted advisor to 170+ small and mid-sized businesses, 3,000+ end users, and 2,000+ systems across Wisconsin. If you want a seat at the table where solutions are actually designed, not just deployed, this is that seat.

We work across five divisions, Procurement, Operational Excellence, Managed Services, Applications & Analytics, and Infrastructure & Security Engineering, so you'll touch a wide range of technology while helping clients modernize and secure their environments. Our culture runs on five values: Client Driven, Elevate Others, Do the Right Thing, Thirst for Knowledge, and Professionalism.

The Role

We're looking for an experienced IT Engineer to be a trusted technical advisor to clients and a key contributor on our Infrastructure & Security Engineering team. You'll join a collaborative group of 10+ engineers who share knowledge and push each other to get better. You'll own the stability, security, and long-term health of client environments, networks, servers, cloud platforms, and security systems, and you'll work directly with clients to connect technology decisions to business outcomes.

What You'll Do

• Act as the technical leader for assigned client environments
• Design, implement, and maintain servers, security, networking, firewalls, backups, and cloud platforms
• Support and architect Microsoft 365 and Azure environments
• Lead migrations, upgrades, virtualization, and infrastructure projects
• Assist Help Desk and NOC teams with escalations
• Perform proactive system reviews and recommend improvements
• Keep building your skills and certifications to stay ahead of what the market needs

Requirements

Required —represents the typical client environment at SSR:

• 8+ years supporting IT infrastructure environments
• Strong Windows Server / Active Directory experience
• Networking fundamentals (VLANs, VPNs, firewalls, switching)
• Microsoft 365 / Azure experience
• VMware or Hyper-V experience
• Strong troubleshooting and client communication skills
• Hardware platforms including HP, Dell, Meraki, and Cisco

Preferred:

• MSP or consulting experience
• Veeam / Datto / backup platforms
• Security tools (Sentinel One, KnowBe4, Duo, Qualys, Greenbone, etc.)
• Certifications (Microsoft, Azure, VMware, Cisco, Security+, etc.)

How This Role Fits Within Our Team

Help Desk ? NOC ? Engineers ? Senior Engineers ? Engineering Leadership

Our engineers focus on complex troubleshooting, infrastructure projects, and client-facing technical leadership, while frontline teams handle monitoring and first-response support.

Benefits

• 401(k) + Profit Share
• Quarterly Bonus Program (SSR Share)
• Health, Dental, Vision, Life & Disability Insurance
• Paid Time Off & Holidays
• Training & Professional Development