Senior Systems & Network Engineer

Senior Systems & Network Engineer is a highly skilled Tier 3 Technician to serve as the top escalation point for our helpdesk and NOC teams. This role is for a deep technical expert who thrives on solving complex, ambiguous problems that Tier 1 and Tier 2 staff cannot resolve. You will own the hardest tickets, drive root cause analysis, and play a key role in mentoring junior staff and improving our technical processes.

• Serve as the final escalation point for complex infrastructure, networking, and systems issues
• Perform root cause analysis and document findings to reduce repeat incidents
• Design, implement, and support advanced solutions across networking, server, and cloud environments
• Lead troubleshooting of enterprise-level issues involving multi-vendor environments
• Collaborate with vendors and third parties on escalated cases and hardware/software issues
• Contribute to internal knowledge base articles, runbooks, and technical documentation
• Mentor Tier 1 and Tier 2 technicians through knowledge transfer and hands‑on coaching
• Participate in architecture and engineering discussions for new client deployments or infrastructure changes
• Support change management processes and assist with after‑hours maintenance windows as needed

• 5+ years of hands‑on experience in IT infrastructure support or systems/network engineering
• Advanced troubleshooting skills across the following:
• Networking:
  Firewalls (Fortinet, Cisco, Palo Alto, Sonic Wall), switching, routing, VPNs, VLANs, Wi‑Fi
• Windows Server:
  Active Directory, Group Policy, DNS, DHCP, DFS, RDS
• Virtualization: VMware vSphere/ESXi or Microsoft Hyper‑V
• Microsoft 365:
  Exchange Online, Teams, SharePoint, Intune, Conditional Access
• Experience with backup and disaster recovery solutions (Veeam, Datto, Acronis, or similar)
• Strong diagnostic and analytical skills with the ability to work independently on complex problems
• Excellent written communication for documentation and ticket notes

• CCNP, MCSE, VCP, or equivalent advanced certifications
• Experience in an MSP or multi‑client support environment
• Exposure to Azure or AWS (IaaS/PaaS administration, not just SaaS)
• Scripting/automation experience (Power Shell strongly preferred)
• Familiarity with SIEM tools, endpoint security, and basic cybersecurity concepts
• Experience with RMM tools (Connect Wise Automate, NinjaRMM, Kaseya, etc.)
• Experience leveraging AI tools in a technical context — prompt engineering, AI‑assisted troubleshooting, automation with LLM APIs, or deploying/managing local AI models
• Active homelab practice — candidates who self‑host, test new technologies, and experiment outside of work hours bring a level of curiosity and depth that translates directly to this role

• Physical demands include sits, squats, bends, lifts and moves during working hours.
• Responsibilities may change from time to time. Allied Business Solutions reserves the right to add or delete duties and responsibilities at the discretion of ABS and its executives.
• This job description is intended to describe the general level of work being performed. It is not intended to be all-inclusive.