Network Engineer III
Athena Information Technology
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Job summary
Athena Information Technology is seeking a Network Engineer III to design, implement, and optimize enterprise network infrastructure across multiple locations in the United States. The role requires deep expertise with Cisco, Palo Alto, Aruba, SD-WAN, and carrier management, with hands-on responsibility for high-availability healthcare operations.
You will mentor junior engineers, automate common tasks using AI tools, and participate in a rotating 24/7 on-call schedule to maintain performance,
Qualifications
- 9+ years of progressively responsible enterprise networking experience.
- Experience supporting complex production network environments.
- Proven ability to work independently and manage multiple priorities.
Responsibilities
- Design, configure, maintain, and troubleshoot enterprise LAN, WAN, wireless, firewall, VPN, and SD-WAN environments.
- Diagnose and resolve complex network performance and connectivity issues using packet captures, routing analysis, system logs, and monitoring platforms.
- Administer and support: Cisco routing and switching infrastructure; Palo Alto firewalls and GlobalProtect VPN; Aruba wireless solutions; Aruba ClearPass; Palo Alto Prisma SD-WAN ION devices.
- Partner with carriers and internal telecommunications teams to coordinate: circuit installations, upgrades and migrations, outage response, service restoration, escalation management.
- Validate performance, failover capabilities, and redundancy for new network services.
- Utilize Cortex XDR telemetry to assist with incident investigations and coordinate response activities with Infrastructure and Information Security teams.
- Improve monitoring, alerting, reporting, and capacity planning utilizing: Zabbix, Grafana, Aruba AirWave, SolarWinds.
- Maintain network documentation, configuration backups, and operational standards.
- Mentor junior engineers and contribute to technical knowledge sharing.
- Use approved AI tools, scripting, and APIs to automate repetitive tasks and accelerate troubleshooting efforts.
- Participate in a rotating 24/7 on-call schedule and occasional after-hours maintenance activities.
Skills
Education
Tools
Job description
Job Type: Full-Time
Reports To: Vice President of Infrastructure Delivery
Athena Information Technology supports the critical infrastructure that connects corporate offices, data centers, and healthcare facilities across the organization. We are seeking an experienced Network Engineer III who thrives in complex enterprise environments and can independently troubleshoot, resolve, and modernize networking infrastructure that supports high-availability healthcare operations.
This is a hands‑on senior engineering role for someone with deep expertise in Cisco networking, Palo Alto security platforms, Aruba wireless technologies, SD‑WAN connectivity, and carrier‑network management.
A Network Engineer III, you will design, support, troubleshoot, and optimize enterprise network infrastructure across multiple locations.
- Design, configure, maintain, and troubleshoot enterprise LAN, WAN, wireless, firewall, VPN, and SD‑WAN environments.
- Diagnose and resolve complex network performance and connectivity issues using packet captures, routing analysis, system logs, and monitoring platforms.
- Administer and support:
- Cisco routing and switching infrastructure
- Palo Alto firewalls and GlobalProtect VPN
- Aruba wireless solutions
- Aruba ClearPass
- Palo Alto Prisma SD‑WAN ION devices
- Partner with carriers and internal telecommunications teams to coordinate:
- Circuit installations
- Upgrades and migrations
- Outage response
- Service restoration
- Escalation management
- Validate performance, failover capabilities, and redundancy for new network services.
- Utilize Cortex XDR telemetry to assist with incident investigations and coordinate response activities with Infrastructure and Information Security teams.
- Improve monitoring, alerting, reporting, and capacity planning utilizing:
- Zabbix
- Grafana
- Aruba AirWave
- SolarWinds
- Maintain network documentation, configuration backups, and operational standards.
- Mentor junior engineers and contribute to technical knowledge sharing.
- Use approved AI tools, scripting, and APIs to automate repetitive tasks and accelerate troubleshooting efforts.
- Participate in a rotating 24/7 on‑call schedule and occasional after‑hours maintenance activities.
- 9+ years of progressively responsible enterprise networking experience.
- Extensive hands‑on experience supporting complex production network environments.
- Proven ability to work independently and manage multiple priorities in a fast‑paced operational setting.
- VLANs
- Trunking
- Spanning Tree Protocol
- EtherChannel
- Access Control Lists (ACLs)
- Quality of Service (QoS)
- OSPF
- BGP
- Advanced CLI troubleshooting
- Security policies
- NAT
- App‑ID
- VPN technologies
- Log analysis
- Traffic flow troubleshooting
- Wireless architecture and management
- RF optimization
- Roaming and client‑connectivity troubleshooting
- Aruba AirWave
- Aruba ClearPass
- RADIUS
- 802.1X authentication
- EAP‑TLS
- Digital certificates
- Enforcement policies
- Authentication troubleshooting
- Palo Alto Prisma SD‑WAN
- ION appliance deployment and support
- WAN path optimization
- Application‑based routing
- Overlay networks
- Circuit failover
- Dedicated Internet Access (DIA)
- Ethernet services
- Broadband services
- Circuit provisioning
- Demarcation troubleshooting
- Technical escalations
- Service restoration testing
Strong understanding of:
- TCP/IP
- DNS
- DHCP
- Routing and switching concepts
- Certificates and PKI
- Latency, jitter, and packet loss analysis
- MTU optimization
- Packet capture and protocol analysis
We are looking for engineers who actively leverage technology to improve operational effectiveness.
Qualified candidates should be able to demonstrate practical experience using AI and automation tools to:
- Analyze sanitized logs
- Generate troubleshooting hypotheses
- Review network configurations
- Create scripts
- Improve documentation
- Streamline repeatable workflows
Candidates should be prepared to discuss:
- Specific use cases
- Validation methods used to verify results
- Time savings achieved
- Operational improvements delivered
- PowerShell
- Python or equivalent scripting language
- REST APIs
- Responsible handling of credentials, healthcare information, and sensitive network data
- Bachelor's degree in Information Technology, Computer Science, Engineering, or a related field; or equivalent enterprise experience.
- CCNP-level routing and switching knowledge.
- Cisco certifications preferred.
- Palo Alto Networks certifications preferred.
- Aruba certifications preferred.
- Experience supporting healthcare or other highly available environments.
- Cisco Nexus
- Cisco Meraki
- Voice-network troubleshooting
- Microsoft certificate services
- Microsoft identity integration
- Non‑supervisory position reporting to the Vice President of Infrastructure Delivery.
- Participation in a rotating 24/7 on‑call schedule.
- Occasional after‑hours maintenance windows.
- Travel as required.
- Ability to install, move, and rack networking equipment weighing up to 25 pounds, with reasonable accommodation as applicable.
- Work with modern enterprise networking and security technologies.
- Support mission‑critical healthcare environments.
- Collaborate with experienced infrastructure, telecom, and security professionals.
- Opportunity to leverage automation, AI, and next‑generation networking solutions.
- Make a direct impact on the reliability and performance of systems that support patient care.
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