Senior Network Engineer – Enterprise Infrastructure
United States
Full-time
Just now
H1B Sponsor Likely
Key skills
HP Aruba LAN/WLANCheck Point firewallsInfoblox DNS/DHCP/IPAMAzure ExpressRouteTroubleshootingStandardizationAutomationDocumentationAIAzureFirewall
About this role
CoSourcing Partners is an Enterprise-AI and IT Services Company in the Healthcare industry. They are seeking a Senior Network Engineer to own, stabilize, and improve the client’s enterprise network environment, ensuring secure and reliable connectivity across various infrastructures.
Responsibilities:
- Assume operational ownership of the existing HP Aruba LAN/WLAN environment, including switches, access points, RAPs, and ClearPass
- Gain full working knowledge of Check Point firewall and VPN configurations, documenting current-state rules, policies, and known risks
- Validate Infoblox DNS/DHCP/IPAM configurations and establish baseline health checks
- Respond to and resolve network incidents independently, following established change and incident processes
- Reduce recurring network incidents through root-cause analysis and targeted remediation
- Improve wireless stability and access control policy enforcement via Aruba ClearPass tuning and cleanup
- Standardize firewall and VPN rule management to improve security posture and operational clarity
- Deliver clear documentation for network topology, access policies, and escalation procedures
- Proactively identify and implement improvements that increase network reliability, security, and performance
- Partner effectively with infrastructure, security, and cloud teams to support hybrid connectivity initiatives (including Azure ExpressRoute, where applicable)
- Establish repeatable operational practices that reduce downtime, improve mean-time-to-resolution, and increase confidence in the network environment
- Serve as a trusted senior technical resource during audits, incidents, and infrastructure changes
Requirements:
- Proven, hands-on experience supporting HP Aruba switching and wireless environments, including ClearPass
- Deep operational experience with Check Point firewalls and traditional VPNs (site-to-site and remote access)
- Strong working knowledge of Infoblox DNS/DHCP/IPAM in enterprise environments
- Demonstrated ability to troubleshoot complex network issues in production under pressure
- Experience operating in hybrid enterprise environments with on-prem and cloud connectivity
- Exposure to Azure networking and ExpressRoute
- Experience improving network operations through documentation, standardization, or automation