Senior Network Engineer

$80,000 - $92,000/Yr

Cognizant Technology Solutions - Englewood, CO

posted 2 months ago

Full-time - Mid Level
Englewood, CO
10,001+ employees
Professional, Scientific, and Technical Services

About the position

Cognizant's Cloud, Infrastructure, and Security Services Practice (CIS) is dedicated to facilitating digital transformation by driving core modernization across various layers. The Senior Network Engineer will play a crucial role in helping customers transform their infrastructure and workplace to meet the rapidly evolving demands of the digital era. This position involves a holistic approach to deliver significant results for customers by achieving cloud-driven modernization and operational transformation, ensuring that businesses operate in a secure environment. In this role, the Senior Network Engineer will be responsible for verifying requests for firewall rule openings and other security-related requests in Checkpoint and Cisco firewalls, implementing these changes while adhering to established processes. The engineer will also handle requests for new virtual IP creation in F5 LTM and GTM, coordinating with requestors as necessary to ensure compliance with standards. Troubleshooting GRE and IPSec VPN tunnels and related issues in Cisco and Checkpoint devices will be a key responsibility, alongside a solid understanding of EIGRP and BGP routing protocols. The engineer will work within a Service Now ticketing environment, managing incidents and requests, and will represent changes during Change Management Calls to secure necessary approvals. Testing, troubleshooting, and validating changes with application team validators will also be part of the role, as well as collaborating with vendor support teams to resolve infrastructure-related issues. A good understanding of enterprise switching environments and basic troubleshooting skills is essential, along with the ability to work collaboratively with colleagues from different geographies for continuous support.

Responsibilities

  • Verify requests for firewall rule openings and other security-related requests in Checkpoint and Cisco firewalls, implementing changes as per the change process.
  • Verify requests for new virtual IP creation in F5 LTM and GTM, implementing changes while coordinating with requestors as needed.
  • Handle and troubleshoot GRE and IPSec VPN tunnels and related issues in Cisco and Checkpoint devices.
  • Demonstrate a good understanding of EIGRP and BGP routing protocols.
  • Work within a Service Now ticketing environment to manage incidents and requests, creating changes and following processes.
  • Attend Change Management Calls to represent changes and obtain necessary approvals.
  • Test, troubleshoot, and validate F5 and firewall changes with application team validators.
  • Collaborate with vendor support teams (like Cisco, F5, ISPs) to resolve infrastructure-related issues.
  • Understand enterprise switching environments and demonstrate basic troubleshooting skills.
  • Work effectively as a teammate, collaborating with colleagues from different geographies for continuous support.

Requirements

  • Good communication skills.
  • Experience with Checkpoint Firewalls, Cisco ASA or FTD.
  • Experience with F5 load balancers (LTM/GTM).
  • Knowledge of general networking concepts such as DHCP, DNS, IP Address management, NAT, IPSec VPN, NTP, SNMP.
  • Strong debugging and troubleshooting skills with F5 GUI, CLI, log files, and TCPDUMP processes in an enterprise network environment.
  • Basic understanding of enterprise routing in EIGRP, BGP, and VRFs.
  • Basic understanding of enterprise switching, virtual switches, and stack switches.

Nice-to-haves

  • F5 configuration scripting and automation capabilities.
  • Understanding of CISCO ACI and AWS.

Benefits

  • Medical/Dental/Vision/Life Insurance
  • Paid holidays plus Paid Time Off
  • 401(k) plan and contributions
  • Longterm/Shortterm Disability
  • Paid Parental Leave
  • Employee Stock Purchase Plan
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