Infrastructure Engineer

About this position

EMPIST is a full-service IT company, providing businesses with the technology they need to succeed. Each day we strive to create a teamwork-led environment that fosters the success of not just our clients and our business but of our employees, too.

Chicago, IL - Onsite (Mon-Fri)

The Networking-Focused ISG Engineer is responsible for supporting, optimizing, and securing EMPIST’s client network environments across on premises, cloud, and hybrid infrastructures. This role serves as a primary escalation point for advanced networking issues and plays a critical part in ensuring high availability, strong security, and exceptional client experience.

• Serve as a Level 2/3 escalation point for complex networking issues across multiple client environments
• Configure, maintain, and troubleshoot firewalls (Fortinet & Meraki preferred)
• Support routing, switching, VPN, VLAN segmentation, and wireless deployments
• Perform network health assessments, optimization recommendations, and remediation
• Utilize network monitoring tools to proactively identify and resolve issues
• Support and optimize wireless environments across HP/Aruba, Cisco, Meraki, and Fortinet platforms
• Troubleshoot RF performance issues and assist with wireless redesigns or expansions
• Work with Infrastructure and Cloud engineers to ensure alignment between network configurations and server, Azure, and VMware environments
• Support basic server, virtualization, and identity-related troubleshooting when issues intersect with network performance or connectivity
• Assist with hybrid connectivity between cloud and on-prem networks
• Collaborate on infrastructure tickets where networking and systems layers overlap
• Maintain accurate documentation, diagrams, and configuration standards
• Contribute to knowledgebase content and best practices
• Participate in on‑call rotation
• Deliver exceptional customer service both onsite and remotely
• Communicate clearly with technical and non‑technical stakeholders
• Provide guidance to Service Desk and Field Engineers to reduce networking escalations

• 5+ years of hands‑on networking or infrastructure engineering experience
• Strong proficiency with firewalls, switching, and routing (Fortinet strongly preferred)
• Strong understanding of DNS, DHCP, VLANs, NAC, and network security principles
• Familiarity with Microsoft 365, Azure AD, and virtualization concepts (VMware/Hyper‑V)
• Experience with wireless platforms such as Aruba, Cisco, Meraki, or Fortinet
• Ability to work onsite, remotely, and at client locations as required
• Strong troubleshooting, communication, and documentation skills

• Relevant certifications (CCNA, CCNP, Network+, Fortinet NSE, or equivalent)
• Experience with SD‑WAN, QoS, and VoIP‑related network configurations
• Familiarity with ITGlue or similar documentation platforms
• Experience designing or supporting hybrid-cloud networking (Azure, AWS)

• Salary Range: $80,000–$100,000 annually
• Benefits:
  Comprehensive health coverage, 401(k) with match, paid time off, certification reimbursement, and professional development support.

This is a full‑time technical position with full benefits including Medical, Dental and 401K Match, plus we set up a career track tailored to each individual engineer and we pay for your certifications to complete that track.