NETWORK ENGINEER

Atos•Irving, SD

About The Position

The Network Support Engineer implements change requests, typically during evening maintenance windows, troubleshoots customer connectivity incidents, and participates in a rotating on-call schedule to meet SLA requirements. The role supports campus, data center, and WAN environments and involves configuration, upgrades, and troubleshooting of Cisco Nexus switches, Cisco ASA firewalls, Cisco ACI, and F5 BIG-IP LTM devices. The engineer also analyzes routing and forwarding issues, diagnoses firewall policies and SSL/TLS offloading problems, uses packet captures, logs, and monitoring tools to identify root causes, and maintains operational documentation.

Requirements

  • Hands-on experience with the Cisco Nexus (NX-OS) platform.
  • Strong experience with Cisco ASA firewalls, including policy management, NAT, and VPN troubleshooting.
  • Expertise in Cisco ACI, including APIC administration, tenants, contracts, Endpoint Groups (EPGs), and forwarding and connectivity troubleshooting.
  • Experience with F5 BIG-IP LTM, including Virtual Servers, Pools, iRules, and SSL Profiles.
  • Strong routing and switching knowledge, including BGP, OSPF, VLANs, STP, VRFs, and HSRP/VRRP.
  • Proficiency in troubleshooting using packet captures, device logs, and CLI diagnostic tools.
  • Excellent customer-facing communication skills and ability to explain technical issues to non-technical stakeholders.
  • Strong documentation skills and attention to detail.
  • Willingness to work evening maintenance windows, typically beginning at 7:00 PM.
  • Willingness to participate in a rotating on-call support schedule to ensure SLA compliance and operational continuity.

Nice To Haves

  • Industry certifications such as CCNA, CCNP, or F5 Certifications.

Responsibilities

  • Implement scheduled change requests and maintenance activities during defined change windows, typically beginning around 7:00 PM, following change control procedures and rollback plans.
  • Triage, diagnose, and resolve customer-impacting connectivity incidents across campus, data center, and WAN environments.
  • Configure, upgrade, and troubleshoot Cisco Nexus switches, Cisco ASA firewalls, Cisco ACI, and F5 BIG-IP LTM devices.
  • Analyze routing and forwarding issues involving BGP, OSPF, VRFs, VXLAN/EVPN where applicable, HSRP/VRRP, and related networking protocols.
  • Troubleshoot firewall policies, NAT configurations, access control lists, and SSL/TLS offloading issues on Cisco ASA and F5 platforms.
  • Use packet captures, log analysis, and monitoring tools to identify root causes and resolve issues.
  • Participate in a rotating on-call schedule, respond to alerts and incident escalations, perform after-hours remediation, conduct post-incident reviews, and maintain incident documentation.
  • Maintain accurate network documentation, diagrams, and operational procedures.
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