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NTT DATA Logo NTT DATA · IT - Administration

L3 Network Support Engineer

Czechia, Prague · Job Posted March 22, 2026
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Job Description

The L3 Network Support Engineer at NTT DATA is responsible for resolving complex incidents, conducting root cause analysis, and designing long-term solutions. The role requires strong technical skills in networking technologies such as Cisco and Palo Alto Networks, along with excellent communication and leadership abilities. A degree in IT/Computing is required, and relevant certifications like CCNP and PCNSE are preferred. This position offers opportunities for mentorship and collaboration across teams.

Job Responsibility

  • Lead resolution of high-impact incidents and perform deep-dive troubleshooting
  • Conduct root cause analysis and implement permanent fixes
  • Design and execute complex changes and upgrades with minimal disruption
  • Act as a technical escalation point for L1 and L2 teams
  • Collaborate with clients, CoE teams, and automation engineers to improve service delivery
  • Lead disaster recovery planning and execution
  • Maintain high-quality documentation, knowledge articles, and operational procedures
  • Analyze trends and proactively identify areas for improvement

Requirements

  • Fluent in English, with excellent stakeholder communication and leadership skills
  • Strong hands-on experience with multiple technologies, including: Cisco, Fortinet, Palo Alto Networks (including Prisma Access and SASE)
  • F5 (LTM, GTM, ASM)
  • NetApp (advanced storage integration and troubleshooting)
  • SD-WAN solutions (e.g., Cisco Viptela, Fortinet SD-WAN, Prisma SD-WAN)
  • Deep understanding of networking protocols (BGP, OSPF, NAT, VPN)
  • Experience with monitoring and ticketing tools (e.g., SecureCRT, LogicMonitor, ServiceNow)
  • Relevant certifications such as CCNP, PCNSE, Fortinet NSE 5+, or F5 Certified
  • A degree in IT/Computing or equivalent professional experience

What we offer

  • Education to the extent of agreement with the immediate supervisor
  • 5 weeks of vacation
  • 3 Sick-days per Year
  • Compensation of salary for temporary incapacity to work beyond the statutory wage compensation in the amount of the fixed basic salary for temporary absence to 21 days per year
  • Notebook and mobile phone including data tariff according to company standards
  • Contribution to the pension insurance or Long term investment product
  • Specified budget with regards to the predefined benefits packages (Premium health care / Benefits Cafeteria System / Multisport card)
  • Refreshment in the office (coffee, tea, water) for free
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