Enterprise Network Infrastructure Specialist

3 weeks ago


Singapore Citi Full time

Citi is a leading global bank with a network of over 45,000 devices across 103 countries. We are seeking an experienced Enterprise Network Infrastructure Specialist to join our team in Irving, Texas.

The successful candidate will be responsible for providing technical support for our global network, including infrastructure projects and break fixes. This will involve representing the Network Services Support team professionally on conference calls with cross-functional partners throughout the technology organization.

Key Responsibilities:

  • Providing technical support for the firm's global network with a focus on both network infrastructure projects and infrastructure break fixes.
  • Representing Network Services Support (NSS) professionally on conference calls with cross-functional partners throughout the technology organization.
  • Ensuring infrastructure changes, authorization requests, communications to stakeholders for post-change testing, arrangement of hardware replacements are completed complying with established process and execute due diligence in planning to prevent causing disruption of services.
  • Displaying competency and professionalism on conference calls for major incidents which may or may not be due to a failure in NSS managed technology infrastructure.
  • Performing post-mortem Root Cause Analysis for complex, high-visibility issues or major incidents within tight timelines.
  • Maintaining focus and poise during the support cycle and work through all challenges with a results-oriented attitude and relentless focus on enhanced customer service through rapid incident resolution.
  • Collaborating and communicating accurately with people at different technical knowledge levels ranging from Subject Matter Experts, Services Managers to Vendor Support Teams.

Requirements:

  • 7+ years of experience in providing network operations supporting a network with 1000+ nodes.
  • NOC (Network Operations Center) experience or large financial institution network operation/implementation experience is highly preferred.
  • Expert-level working knowledge of enterprise TCP/IP communications (IPv4, QoS, IPSEC, VPN, etc).
  • Experience in supporting Load Balancers, DNS, DHCP.
  • Strong knowledge of network protocol analysis using industry-standard toolsets such as Wireshark.
  • Expert working knowledge following routing protocols: BGP, OSPF, RIP, Multicast.
  • Strong working knowledge of IPSLA probes, EEM Applets, application-specific network performance analysis, and TCP/IP optimization mechanisms for maximizing application performance across enterprise networks.
  • Strong working knowledge of common security threats facing enterprise networks including DDOS (Distributed Denial of Service) and various defensive mechanisms and threat mitigation strategies.
  • Industry certifications include; CCNP, CCIE, JNCIS, JNCIP, etc.
  • Strong knowledge in SDWAN technology.

Salary Range: $120,000 - $180,000 per year.

About Citi: Citi is an equal opportunity and affirmative action employer. Qualified applicants will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.



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