Network Administrator/Engineer

6 days ago

London, Greater London, United Kingdom Cognizant Full time

This is an excellent opportunity for Network Automation Engineer Role professionals to be part of leading-edge technology projects. Cognizant's Cloud, Infrastructure & Security Services Practice provides end-to-end solutions covering architecture, design, implementation, management, and on-going support across the entire enterprise technology infrastructure. Our services include a spectrum of management, consulting, and systems integration services to help our clients maximize value in their infrastructure resources, while optimizing infrastructure performance and cost.

The role will require minimum 4 days working from office.

Responsibilities

  • Design, develop, and maintain automation scripts and tools using Python, Bash, PowerShell, and Ansible.
  • Implement and manage global monitoring and network management systems.
  • Configure, troubleshoot, and optimize TCP/IP stack and application protocols (DHCP, DNS, HTTP, SNMP, NTP, FTP).
  • Manage and support networking protocols and concepts including BGP, OSPF, VRF, NAT, clustering, high availability, load balancing, and QoS.
  • Support enterprise LAN and WAN technologies, including SD-WAN solutions.
  • Implement and maintain network security solutions (firewalls, VPN, web proxy, NAC, IPS/IDS).
  • Deploy and manage enterprise wireless solutions (preferably Aruba).
  • Support and integrate public cloud networking concepts in AWS and Azure.
  • Collaborate with cross-functional teams to ensure secure and efficient network operations.
  • Document network designs, procedures, and policies.
  • Stay updated with emerging technologies and recommend improvements for scalability and security.

Required Skills

  • Strong experience in automation scripting and tools (Python, Bash, PowerShell, Ansible).
  • Hands-on experience with global monitoring and network management systems.
  • In-depth understanding of TCP/IP stack and related application protocols (DHCP, DNS, HTTP, SNMP, NTP, FTP).
  • Proficiency in networking protocols: BGP, OSPF, VRF, NAT, QoS, high availability, clustering, and load balancing.
  • Experience with LAN, WAN, and SD-WAN technologies.
  • Strong knowledge of network security concepts (firewalls, VPN, web proxy, NAC, IPS/IDS).
  • Knowledge of enterprise wireless solutions (Aruba experience preferred).
  • Familiarity with public cloud networking (AWS, Azure).
  • Strong analytical, troubleshooting, and problem-solving skills.
  • Good communication and documentation skills.
  • Relevant certifications (CCNA, CCNP, AWS, Azure, etc.) will be an added advantage.

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