• Competitive
  • Singapore
  • Permanent, Full time
  • Citibank NA
  • 2018-07-19

Network Services Level 3

Network Services Level 3

  • Primary Location: Singapore,Singapore,Singapore
  • Education: Bachelor's Degree
  • Job Function: Technology
  • Schedule: Full-time
  • Shift: Day Job
  • Employee Status: Regular
  • Travel Time: No
  • Job ID: 18037357


Description

  • Provide Tier III/Expert level Technical Support for the firm's global network infrastructure:
    • 75% 'Break/Fix' support of standard enterprise Cisco Internetworking Technology solutions
    • 25% 'Break/Fix' support for Internet working technology infrastructure solutions such as:
      • Load Balancers (F5 and Citrix)
      • Juniper Routers
      • WAN Accelerators/Optimizers (Riverbed)
      • DNS Appliances, QIP/DHCP services
      • Wi-Fi/Wireless communications support
      • Other small pockets of both new and legacy internetworking technologies
  • Serve as the technical escalation point for Tier II support. Work collaboratively with Tier II and mentor junior technicians in order to improve their technical skill set over the long term
  • Provide expert level technical support on conference calls with cross functional partners throughout the technology organization. Conduct in depth technical investigations of ongoing incidents involving degraded network performance
  • Collaborate directly with Global Network Integration and Architecture & Technology Engineering teams on large-scale projects. This includes design reviews for technical soundness and operational supportability of proposed deployments
  • Maintain written operational procedures for the network service. This includes document reviews at predefined intervals, ad-hoc procedure updates in response to operational events, and consistently high quality document management so that they are ready for audit and compliance scrutiny at any time
  • Perform pre-defined configuration assurance and standard build checks to satisfy risk, control and "Safety & Soundness" initiatives as part of proactive configuration management of all network managed infrastructure. This includes validating proper configuration on all redundant device pairs, validating all infrastructure is configured in accordance with documented engineering standards, and formulating remediation plans when exceptions are identified
  • Escalate inter-networking design and architectural issues to Architecture Network Engineering teams for further analysis. Work collaboratively with engineering counterparts to achieve a design solution to the issues identified during the course of working through operational incidents.   Evaluate issues for 'global exposure' relative to the install base of the hardware and software solution in question. Ensure the remediation plan accounts for remediation of the full exposure


Qualifications

Qualifications/Requisite Knowledge Base:
  • 5+ years of experience in providing network operations support.   Experience supporting a network with 1000+ nodes is preferred. NOC (Network Operations Center) experience is highly preferred
  • Expert level working knowledge of enterprise TCP/IP communications (IPv4, QoS, IPSEC, etc)
  • Expert level working knowledge of enterprise standard Ethernet media types: Fastethernet, Gigabit and TenGigabit
  • Expert working knowledge of Cisco routers and switches, WANs, (T1, T3, MPLS)
  • Expert working knowledge of three of the following routing protocols:
    • EIGRP, BGP, OSPF, RIP
  • Strong working knowledge in the following:
    • Python (Openpyxl, Twisted Matrix)
    • JavaScript
    • HTML, CSS, vbscript
    • SQL (J-query, Chart-OS)
  • Working knowledge of scripting languages and other web development tools a plus
  • Strong working knowledge of network protocol analysis using industry standard toolsets such as Ethereal Wireshark, etc. Familiarity with Netflow data exports and data collection/analysis
  • Strong working knowledge of IPSLA probes, application specific network performance analysis, packet analysis, Embedded Event Managemer 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
  • Any of following Industry Certifications are highly preferred*:
    • Cisco Certified Network Professional (CCNP)
    • Juniper Networks Certified Internet Specialist/Professional (JNCIS, JNCIP)
    • Information Technology Infrastructure Library - Version 3 Foundations (ITIL Version 3)
    • A commensurate knowledge base in absence of certification is acceptable
*LI-SG
Singapore Singapore Singapore SG