Network Administrator

About Atos Group

Atos Group is a global leader in digital transformation with c. 67,000 employees and annual revenue of c. €10 billion, operating in 61 countries under two brands — Atos for services and Eviden for products. European number one in cybersecurity, cloud and high performance computing, 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 the brand under which Atos SE (Societas Europaea) operates. Atos SE is listed on Euronext Paris.

The purpose of Atos Group is to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence. Across the world, the Group enables its customers and employees, and members of societies at large to live, work and develop sustainably, in a safe and secure information space.

Job Description: Network Administrator (L3 Level, 10+ Years of Experience)

Role Overview

The Network Administrator at L3 level is responsible for managing, maintaining, and optimizing complex network infrastructures. This role requires advanced expertise in network technologies, troubleshooting, and leadership to ensure high availability, security, and performance of enterprise networks.

Key Responsibilities

1. Network Design and Implementation:

• Design and implement advanced network solutions, including routing, switching, and security configurations.
• Configure and manage enterprise-grade network devices such as Cisco and Juniper routers and switches.
• Implement and manage Quality of Service (QoS), MPLS, VRF, and VRF Lite for optimized network performance.

• Configure and troubleshoot IP routing protocols such as EIGRP, OSPF, and BGP.
• Manage switching protocols like STP, RSTP, PVST, and port channeling.
• Perform upgrades, configurations, and troubleshooting for Nexus switches.

• Configure and troubleshoot HSRP, NAT, GLBP, and IP SLA for network redundancy and security.
• Utilize network monitoring tools such as Wireshark, Network Observer, Netflow Analyzer, and MRTG for proactive issue identification.

• Monitor network performance and optimize configurations to meet business requirements.
• Identify and resolve network-related performance issues in collaboration with other teams.

• Implement disaster recovery solutions and ensure network redundancy.
• Maintain high availability of network services through robust configurations and proactive monitoring.

• Work with vendors to resolve complex network issues and implement fixes.
• Coordinate with hardware and software vendors for upgrades and patches.

• Maintain detailed documentation of network configurations, changes, and incidents.
• Provide regular reports on network health, performance, and capacity planning.

Required Skills and Qualifications

• Technical Expertise:
  • Advanced knowledge of Cisco and Juniper network devices (e.g., Cisco ASR 1000 Series, Nexus switches, Juniper EX/QFX/PTX/MX Series).
  • Proficiency in routing protocols (EIGRP, OSPF, BGP) and switching technologies (STP, RSTP, PVST).
  • Experience with network security configurations (HSRP, NAT, GLBP, IP SLA).
• Certifications (Preferred):
  • Cisco Certified Network Professional (CCNP).
  • Cisco Certified Internetwork Expert (CCIE).
  • Juniper Networks Certified Internet Professional (JNCIP).
• Soft Skills:
  • Strong analytical and problem-solving abilities.
  • Effective communication and collaboration skills.
  • Ability to work under pressure and manage multiple priorities.

Additional Responsibilities

• Provide Level 3 support for complex network issues.
• Collaborate with cross-functional teams to ensure seamless network operations.
• Lead network-related projects and mentor junior team members.

Here at Atos, diversity and inclusion are embedded in our DNA. Read more about our commitment to a fair work environment for all.

Atos is a recognized leader in its industry across Environment, Social and Governance (ESG) criteria. Find out more on our CSR commitment. 

Choose your future. Choose Atos.