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# Staff Infrastructure Engineer

- **Company:** Legence Corp.
- **Location:** Louisville, KY, United States
- **Experience:** Expert
- **Salary:** $130,000.0 - $148,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, Systems Engineering, Microsoft Azure, Software as a Service, Cloud Computing, Computer Networks, Network Address Translation, Infrastructure as a Service (IaaS), Identity and Access Management, IPv4, Virtual Private Networks (VPN), Network Layer, Windows Servers, Network Architecture, Network Monitoring, Routing, Platform as a Service (PAAS), Cloud Services, Runbook, Virtual Local Area Networks, Wireless Access Point, Network Routers, Cloud Platform System, System Availability, Firewalls (Computer Science), Information Technology, Wireless Technologies, Cloud Migration
- **Published:** September 28, 2026
- **Apply:** https://dejobs.org/x/x/536B3F6C36C34DC19D2E986738F49CFD/job/

## About the Role

* Bachelor's degree in Computer Science, Information Technology, or equivalent experience.
 * 5-10 years experience in enterprise infrastructure roles covering networking, Windows systems, and/or cloud platforms.
 * Experience with multi-vendor firewalls, switches, wireless, IPv4, routing protocols, NAT, VPNs, VLANs, etc.
 * Experience with Azure or other cloud platforms.

Preferred

 * Experience with SaaS infrastructure platforms and SSO/identity solutions.
 * Strong analytical, documentation, and communication skills.
 * Ability to work independently, adapt quickly, and manage priorities in a dynamic environment.

Soft Skills

 * Strong problem-solving mindset and ability to work under pressure.
 * Team-oriented collaborator with ability to influence without direct authority.
 * Customer-focused, organized, detail-oriented, and proactive in learning new technologies., Candidates must have current work authorization in the U.S.; visa sponsorship is not available for this position.

## Description

The IT Infrastructure Engineer is responsible for designing, implementing, maintaining, and supporting core enterprise infrastructure services across on-premises and cloud environments. This role ensures high availability, security, and performance of critical systems while partnering closely with cross-functional IT and business teams., * Network & Systems Engineering

 * Design, implement, and support network infrastructure with strong understanding of Layer 2 and Layer 3 networking concepts, routing, switching, VLANs, ACLs, and wireless technologies.
 * Configure, manage, and optimize multi-vendor switches, wireless access points, routers, and firewalls.
 * Administer and support Windows Server, Active Directory, and related identity services.
 * Support cloud services (Azure preferred), including IaaS, PaaS, identity, automation, and monitoring capabilities.
 * Operational Support & Troubleshooting
 * Diagnose and resolve infrastructure issues across network, server, cloud, and authentication platforms to minimize downtime.
 * Provide escalation support to help desk, applications, and other technical teams.
 * Participate in root-cause analysis and implement corrective or preventive measures.
 * Performance, Monitoring & Documentation
 * Monitor network and system performance, identify bottlenecks, and implement improvements.
 * Maintain accurate infrastructure documentation (configs, diagrams, runbooks, IP subnets, change histories).
 * Security & Compliance
 * Implement and maintain security controls, including firewalls, VLAN segmentation, ACLs, and secure configuration standards.
 * Ensure solutions comply with enterprise standards and applicable regulations.
 * Project Work & Collaboration
 * Work on infrastructure projects such as cloud migrations, system upgrades, network redesigns, and technology deployments.
 * Collaborate with other IT teams, business partners, and external vendors to deliver effective infrastructure solutions.