Systems Administration Senior Associate - Network Security

NTT America, Inc.; Bengaluru; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

NTT DATA is seeking a Systems Administration Senior Associate - Network Security to join our Bangalore team. G5 engineers bring hands-on expertise to stabilize incidents and support L1 troubleshooting before escalation.

You will contribute to interface analysis, VPN checks, firewall verification, and incident ownership, while mentoring junior G4 engineers and maintaining runbooks and documentation.

Responsibilities

• Perform deeper L1 troubleshooting: Interface utilization / errors analysis
• Basic routing checks (static routes, OSPF neighbours’ status)
• VPN tunnel state checks
• Firewall rule verification (read‑only)
• Own incident tickets until resolution or justified escalation
• Work with ISPs to troubleshoot WAN link issues (CRC errors, flaps, latency)
• Assist in executing standard changes under guidance (e.g., port configuration, VLAN assignment)
• Support planned maintenance: device checks, pre‑/post‑validation
• Mentor G4 engineers and review their ticket quality
• Maintain network documentation and runbooks

Job description

Req ID: 376093

NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization.

We are currently seeking a Systems Administration Senior Associate - Network Security to join our team in Bangalore, Karnātaka (IN-KA), India (IN).

G5 – Network Operations Engineer (Intermediate L1 / Junior L2)

Role Summary

G5 engineers bring foundational hands‑on expertise. They resolve moderately complex issues and help stabilize incidents before escalating to L2/L3.

Key Responsibilities

• Perform deeper L1 troubleshooting:
• Interface utilization / errors analysis
• Basic routing checks (static routes, OSPF neighbours’ status)
• VPN tunnel state checks
• Firewall rule verification (read‑only)
• Own incident tickets until resolution or justified escalation.
• Work with ISPs to troubleshoot WAN link issues (CRC errors, flaps, latency).
• Assist in executing standard changes under guidance (e.g., port configuration, VLAN assignment).
• Support planned maintenance: device checks, pre‑/post‑validation.
• Mentor G4 engineers and review their ticket quality.
• Maintain network documentation and runbooks.

About NTT DATA

NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise‑scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start‑up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D.

Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client’s needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in‑office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com, @nttdatafed.com and @talent.nttdataservices.com email addresses. If you are requested to provide payment or disclose banking information, please submit a contact us form, https://us.nttdata.com/en/contact-us.

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