NETWORK ENGINEER

Atos SE; Irving (TX); On-site; USD 70,000 - 100,000; Full time

Job summary

Atos SE in Irving, TX seeks a Network Support Engineer to implement change requests, triage connectivity incidents, and participate in a rotating on-call schedule to meet SLA requirements.

You'll configure Cisco Nexus switches, ASA firewalls, Cisco ACI, and F5 BIG-IP LTM, analyze BGP/OSPF/VRF issues, and use Wireshark and tcpdump for root-cause analysis, while maintaining accurate network docs.

Qualifications

• Hands-on experience with Cisco NX-OS in data-center environments.
• Extensive work with Cisco ASA firewalls, policy management, NAT, and VPN troubleshooting.
• Expertise in Cisco ACI including APIC admin, tenants, contracts, EPGs, and connectivity troubleshooting.

Responsibilities

• Implement scheduled changes and maintenance within defined windows.
• Triage and resolve customer-impacting connectivity incidents across campus, data center, and WAN.
• Troubleshoot routing protocols (BGP/OSPF) and VRF/HLDR issues; analyze firewall policies and SSL offloading.

Skills

NX-OS

Cisco ASA

Cisco ACI

F5 BIG-IP LTM

Routing & Switching

Packet analysis

Customer communication

Education

CCNA

CCNP

F5 Certifications

Tools

Wireshark

tcpdump

CLI

Job description

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Atos is the Atos Group brand dedicated to AI-powered, secure, end-to-end digital services. Atos designs, develops, and operates critical digital environments that drive performance, resilience and sovereignty, helping public and private organizations worldwide retain control over their data and infrastructures, while meeting regulatory requirements.

With more than 52,000 employees serving over 4,500 clients across 54 countries, Atos helps modernize core IT systems, accelerate cloud and data transformation, strengthen cybersecurity, and deliver secure digital workplace environments to support its clients, its employees and society. Atos also provides consulting and advisory services through its Atos Amplify brand.
A trusted partner in operating complex and mission-critical environments, Atos supports organizations across highly regulated and sovereign contexts.

Atos Group is a global leader in digital transformation with c. 54,000 employees and annual revenue of c. €7.2 billion, operating in 54 countries under two brands - Atos for services and Eviden for products and systems. European number one in cybersecurity and a leader in cloud, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos Group is listed on Euronext Paris.

Role Summary

The Network Support Engineer is responsible for implementing change requests, typically during evening maintenance windows, troubleshooting customer connectivity incidents, and participating in a rotating on-call schedule to meet SLA requirements.

Key Responsibilities

• Implement scheduled change requests and maintenance activities during defined change windows (typically beginning around 7:00 PM), following established change control procedures and rollback plans.
• Triage, diagnose, and resolve customer-impacting connectivity incidents across campus, data center, and WAN environments.
• Perform hands-on configuration, upgrades, and troubleshooting of:
  • Cisco Nexus switches
  • Cisco ASA firewalls
  • Cisco ACI
  • F5 BIG-IP LTM devices
• Analyze routing and forwarding issues involving:
  • BGP
  • OSPF
  • VRFs
  • VXLAN/EVPN (where applicable)
  • HSRP/VRRP
  • Related networking protocols
• Troubleshoot firewall policies, NAT configurations, access control lists (ACLs), and SSL/TLS offloading issues on Cisco ASA and F5 platforms.
• Utilize packet captures, log analysis, and monitoring tools (e.g., Wireshark, tcpdump) to identify root causes and resolve issues efficiently.
• Participate in an on-call rotation, responding to alerts and incident escalations, performing after-hours remediation, conducting post-incident reviews, and maintaining incident documentation.
• Maintain accurate network documentation, diagrams, and operational procedures.

Required Experience & Skills

• Hands-on experience with 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)
  • Forwarding and connectivity troubleshooting
• Experience with F5 BIG-IP LTM, including:
  • Virtual Servers
  • Pools
  • iRules
  • SSL Profiles
• Strong routing and switching knowledge, including:
  • BGP
  • OSPF
  • VLANs
  • STP
  • VRFs
  • HSRP/VRRP
• Proficiency in troubleshooting using packet captures, device logs, and CLI diagnostic tools.
• Excellent customer-facing communication skills with the ability to explain technical issues to non-technical stakeholders.
• Strong documentation skills and attention to detail.

Preferred Qualifications

• Industry certifications such as:
  • CCNA
  • CCNP
  • F5 Certifications

Work Schedule

• Willingness to work evening maintenance windows (typically beginning at 7:00 PM).
• Participation in a rotating on-call support schedule to ensure SLA compliance and operational continuity.

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