Senior IT Support Engineer; Level 3​/Level 4

Computer Know How, founded in 1997, is a premier technical consulting firm serving Southern Wisconsin. Our team of system engineers, network specialists, and IT consultants partners with businesses to deliver secure, reliable, and scalable technology solutions. We pride ourselves on resolving complex challenges, maintaining long‑term client relationships, and delivering exceptional customer service.

Computer Know How is seeking a Senior IT Support Engineer (Level 3 / Level
4) to join our team in Green County, WI. This is a full‑time, on‑site role with responsibility for advanced technical support, escalation handling, and infrastructure management across a wide range of client environments.

This role is ideal for a highly experienced technician who can independently diagnose and resolve complex issues, mentor junior staff, and contribute to the design and improvement of client systems.

• Serve as an escalation point for Level 1 and Level 2 technicians
• Diagnose and resolve advanced issues across servers, networks, and cloud platforms
• Design, implement, and maintain client IT infrastructure (on‑prem and cloud)
• Manage and troubleshoot:
  • Microsoft 365 / Azure environments
  • Windows Server, Active Directory, Group Policy
  • Networking (firewalls, VPNs, VLANs, routing)
• Lead or assist with IT projects (migrations, deployments, upgrades, security improvements)
• Document solutions, procedures, and client environments
• Provide high‑level support and consulting directly to clients
• Identify opportunities to improve client performance, security, and reliability
• Mentor and guide junior technicians

• 5+ years of hands–on IT support experience (MSP experience strongly preferred)
• Advanced troubleshooting skills across:
  • Windows OS (desktop & server)
  • Networking concepts and hardware
  • Microsoft 365 and Azure
• Strong understanding of:
  • Active Directory, DNS, DHCP
  • Backup solutions and disaster recovery
  • Endpoint and network security best practices
• Proven ability to independently resolve complex technical issues
• Excellent communication and client‑facing skills
• Ability to manage multiple priorities and projects

• Relevant certifications such as:
  • CompTIA Network+, Security+
  • Microsoft (MS-102, AZ-104, etc.)
  • Fortinet, Cisco, or similar
• Experience with:
  • RMM/PSA tools (e.g., Super Ops, Connect Wise, etc.)
  • Virtualization platforms (Hyper‑V, VMware)

• High‑impact role with autonomy and decision‑making authority
• Opportunity to work on complex, real‑world environments across multiple industries
• Direct influence on technical standards and client solutions
• Ability to grow into a lead engineer or architect role