Network Security Engineer L3

Neysa; Maharashtra; Presencial; INR 1 200 000 - 1 900 000; Tempo integral

Resumo da oferta

Neysa is seeking a Network Security Engineer L3 to monitor, maintain, and troubleshoot network and firewall infrastructure onsite in Mumbai. You will handle advanced configurations, VPNs, and incident management while ensuring uptime and security across DC and office environments.

This role requires a hands-on, detail-oriented engineer comfortable with 24x7 rotation and working within an ITIL-driven service operations framework. Onsite presence at data centers and office locations is required.

Qualificações

• Strong hands-on experience in configuring, managing, and troubleshooting firewalls (e.g., Palo Alto, Fortinet, Cisco ASA/Firepower, Check Point)
• In-depth knowledge of routing and switching concepts (OSPF, BGP, EIGRP, VLANs, STP)
• Strong hands-on experience with BGP (eBGP/iBGP, route reflectors, route policies, path attributes) in Data Centre environments
• Working knowledge of VXLAN overlay networking (VTEPs, VNI mapping, underlay/overlay design) and EVPN as its control plane, including MAC/IP route advertisement and multi-tenancy
• Understanding of Spine-Leaf Data Centre fabric architectures built on BGP EVPN VXLAN
• Expertise in VPN technologies (Site-to-Site, IPSec, SSL VPN, Remote Access VPN)
• Experience with network security concepts — NAT, ACLs, IPS/IDS, DMZ architecture, Zone-Based Firewalls
• Proficiency in troubleshooting network connectivity, latency, and performance issues at L3 level
• Sound knowledge of network monitoring tools (SolarWinds, PRTG, Nagios, or similar)
• Hands-on knowledge on load balancers and proxy technologies
• Familiarity with network documentation, change management, and incident/problem management processes (ITIL framework)
• Experience with DC (Data Centre) network operations, including uptime, redundancy, and failover mechanisms
• Strong understanding of TCP/IP fundamentals, DNS, DHCP, and network protocols

Responsabilidades

• Carry out advanced configurations and troubleshooting on network switches, routers, and firewalls including EVPN BGP, VXLAN, SSL/IPSec VPNs
• Provide technical support to L1/L2 and clients via email, tickets, phone and other channels
• Ensure 24x7 availability and incident response per SLA
• Handle incidents, requests, changes and problems; escalate per matrix
• Manage escalations and critical projects with RCA when needed
• Collaborate with teams to provide timely resolutions
• Adhere to processes and procedures
• Maintain uptime and reliability of infrastructure
• Document activities and ensure ticketing updates
• Ensure timely resolutions to recurrent issues meeting SLA

Conhecimentos

Firewall management

BGP routing

VXLAN/EVPN

Network troubleshooting

TCP/IP fundamentals

LAN/WAN concepts

VPN technologies

ITIL/process adherence

SLA minded support

L3 incident handling

Ferramentas

SolarWinds

PRTG

Nagios

Descrição da oferta de emprego

Job Title: Network Security Engineer L3 – Service Operations Location:Mumbai Type:Onsite, Rotational Shift (24×7) Job Level:L3 Reporting to:Team Lead

Our Purpose

India is in the middle of an extraordinary AI revolution, powered by a young, tech-savvy generation and visionary leaders who see the future in code and creativity. Across industries— from healthcare to finance to education—AI adoption is accelerating at record speed. Over 90% of business leaders are now reimagining their processes through AI, while developers and students across the country are building tools that are transforming the way India works and lives. At the heart of this movement stands Neysa, India’s trusted AI Acceleration Cloud Provider. Neysa exists to democratize AI. Built in India for the world, Neysa carries the credibility of a leadership team that created Netmagic (now part of NTT Data). With a fully integrated system and deep local market insight, Neysa helps organizations across sectors confidently adopt, accelerate, govern, and scale AI. The Future of AI, Built on Trust and Expertise. Hence, Neysa understands and builds the Home for Your AI.

Who We Are

Co-founded by industry pioneers Sharad Sanghi and Anindya Das, Neysa combines deep expertise in cloud, AI infrastructure, and cybersecurity to empower the builders of the future. Its flagship product, Neysa Velocis, is a full-stack system built for modern AI—from training and fine-tuning to inference. It streamlines compute, orchestration, security, and observability, helping organizations in high-growth markets like India adopt AI faster, safer, and more cost-efficiently.

The Opportunity

As a Network and Firewall L3 Engineer, you will assist in monitoring, maintaining, optimizing, and performing advanced-level troubleshooting on network and firewall infrastructure, ensuring system stability and security. This role is ideal for someone looking to gain hands-on experience in network administration, firewall management, and advanced troubleshooting. The position requires onsite presence at both Data Centre (DC) and Office locations.

Roles And Responsibilities

• Carry out advance level configurations and troubleshooting on Network switches, Router and Firewall and networking technologies such as EVPN BGP, VXLAN, SSL VPN, IPSEC VPN, BGP.
• Extend technical support to L1, L2 and clients over the email, tickets, phone and other communications channel
• 24 * 7 Availability
• Provide response & resolutions to Incidents, Requests, Changes, Problems as per SLA & in case required elevate as per escalation matrix
• Handle escalations, Severity Incidents, Critical Projects
• Work on SIP’s, Assignments
• Adhere to process & procedures
• Manage & Maintain availability & uptime of infrastructure
• Collaborate with other team members and other teams to provide resolutions
• Ensure all task, work done are captured in ticketing systems and are updated accordingly
• Ensure earlier resolutions to the issue to meet SLA. Experience handling escalations and providing L3-level support/RCA (Root Cause Analysis) for critical incidents.

Primary Skills (Must Have)

• Strong hands-on experience in configuring, managing, and troubleshooting firewalls (e.g., Palo Alto, Fortinet, Cisco ASA/Firepower, Check Point)
• In-depth knowledge of routing and switching concepts (OSPF, BGP, EIGRP, VLANs, STP)
• Strong hands-on experience with BGP (eBGP/iBGP, route reflectors, route policies, path attributes) in Data Centre environments
• Working knowledge of VXLAN overlay networking (VTEPs, VNI mapping, underlay/overlay design) and EVPN as its control plane, including MAC/IP route advertisement and multi-tenancy
• Understanding of Spine-Leaf Data Centre fabric architectures built on BGP EVPN VXLAN
• Expertise in VPN technologies (Site-to-Site, IPSec, SSL VPN, Remote Access VPN)
• Experience with network security concepts — NAT, ACLs, IPS/IDS, DMZ architecture, Zone-Based Firewalls
• Proficiency in troubleshooting network connectivity, latency, and performance issues at L3 level
• Sound knowledge of network monitoring tools (SolarWinds, PRTG, Nagios, or similar)
• Hands-on knowledge on load balancers and proxy technologies
• Familiarity with network documentation, change management, and incident/problem management processes (ITIL framework)
• Experience with DC (Data Centre) network operations, including uptime, redundancy, and failover mechanisms
• Strong understanding of TCP/IP fundamentals, DNS, DHCP, and network protocols

Preferred Skills

• Basic understanding of SOC processes — incident detection, triage, and escalation
• Familiarity with SIEM tools (Splunk, QRadar, ArcSight, or similar) for log monitoring and correlation
• Exposure to threat intelligence and common attack vectors (DDoS, malware, phishing, lateral movement)
• Ability to correlate network/firewall logs with SOC alerts for effective incident response
• Knowledge of vulnerability management and patching processes
• Familiarity with cloud networking concepts (AWS/Azure VPC, VNet, cloud firewalls, hybrid connectivity)
• Awareness of compliance and audit standards (ISO 27001, PCI-DSS) as applicable to network/security infrastructure
• Certifications such as CCNA/CCNP (Security or Enterprise), PCNSE, Fortinet NSE, or CompTIA Security+ are a plus

Why This Role is a Unique Opportunity at Neysa

This role offers the opportunity to work on complex, large-scale infrastructure systems that power AI-driven platforms. You will play a critical role in maintaining system reliability, handling high-impact incidents, and shaping operational excellence in a fast-growing AI ecosystem. You’ll gain deep exposure to enterprise infrastructure, automation practices, and next-generation AI workloads while contributing to a high-performance environment.

Team Culture and Inclusion

Work in a collaborative, high-impact, and fast-paced environment

Be part of a culture that values ownership, innovation, and continuous learning

Thrive in an inclusive workplace where diverse ideas and perspectives are encouraged