Network Security Engineer

Radware; Bengaluru; On-site; INR 2,500,000 - 4,000,000; Full time

Job summary

Radware is seeking a highly technical Network Security Engineer to operate, secure, and continuously enhance its worldwide network security infrastructure. The role emphasizes firewalls, VPN and ZTNA solutions, routers, switches, segmentation, and monitoring across data centers, cloud connectivity, and offices worldwide.

The engineer will perform hands‑on work including rule creation, policy optimization, troubleshooting, root‑cause analysis, and practical fixes, ensuring improved security,

Qualifications

• 5+ years of hands‑on network security experience in enterprise environments.
• Deep knowledge of firewalls, NAT, VPN, ZTNA, routing, switching, and network segmentation.
• Ability to analyze firewall logs, traffic flows, and security alerts to troubleshoot complex issues.
• Experience collaborating with IT, Infrastructure, Security, Cloud, DevOps, and R&D teams.
• Certifications such as CCNA/CCNP Security, NSE, PCNSA/PCNSE, CCSA/CCSE, JNCIS‑SEC, Security+, CISSP or equivalent.

Responsibilities

• Operate, maintain, and troubleshoot global network security infrastructure (firewalls, VPN/ZTNA, routers, switches).
• Create, validate, optimize, and review firewall rulesets and security policies.
• Improve logging, alerting, dashboards, health checks, and operational reporting.
• Support secure connectivity for data centers, cloud environments, offices, and remote users.
• Investigate security incidents, perform root‑cause analysis, and implement fixes.
• Maintain network security documentation, diagrams, procedures, runbooks, and guides.

Skills

Firewall administration

VPN

ZTNA

Network troubleshooting

Routing & Switching

Security policies

English communication

Tools

Radware

Fortinet

Palo Alto Networks

Check Point

Cisco

Juniper

Job description

Role Overview

We are seeking a highly technical and hands‑on Network Security Engineer to operate, maintain, secure, and continuously improve the company’s global network security infrastructure. This role focuses on firewalls, VPN and ZTNA solutions, switches, routers, network segmentation, monitoring, and network security controls across corporate offices, data centers, cloud connectivity, R&D environments, and branches worldwide. The engineer will be expected to perform extensive hands‑on work, including rule creation and validation, policy optimization, troubleshooting, root‑cause analysis, implementation of technical fixes, and continuous improvements that strengthen network security, stability, visibility, and control.

Job Title: Network Security Engineer

Location: India

Reports To: Security & Infra Director

Role Overview

We are seeking a highly technical and hands‑on Network Security Engineer to operate, maintain, secure, and continuously improve the company’s global network security infrastructure. This role focuses on firewalls, VPN and ZTNA solutions, switches, routers, network segmentation, monitoring, and network security controls across corporate offices, data centers, cloud connectivity, R&D environments, and branches worldwide. The engineer will be expected to perform extensive hands‑on work, including rule creation and validation, policy optimization, troubleshooting, root‑cause analysis, implementation of technical fixes, and continuous improvements that strengthen network security, stability, visibility, and control.

Key Responsibilities

• Network Security Infrastructure Operations
• Operate, maintain, and troubleshoot global network security infrastructure, including firewalls, VPN/ZTNA solutions, routers, switches, network security appliances, and supporting monitoring platforms.
• Create, validate, optimize, and continuously improve firewall rulesets, security policies, access controls, NAT rules, VPN configurations, segmentation rules, and network security standards.
• Improve control, visibility, and monitoring of network security systems by enhancing logging, alerting, dashboards, health checks, rule reviews, and operational reporting.
• Support secure connectivity for data centers, cloud environments, corporate offices, R&D environments, remote users, and global branches.
• Investigate network and security problems, perform root‑cause analysis, and implement practical technical solutions to improve security, stability, performance, and availability.
• Maintain accurate network security documentation, diagrams, procedures, runbooks, configuration standards, and implementation guides.
• Monitoring, Troubleshooting & Incident Support
• Monitor network security systems, firewall logs, VPN activity, network events, and related telemetry to identify risks, misconfigurations, failures, anomalies, and operational issues.
• Investigate security and connectivity incidents, analyze traffic flows and logs, isolate root causes, and implement corrective actions.
• Support incident response activities involving network security controls, suspicious traffic, unauthorized access attempts, VPN issues, segmentation gaps, and firewall policy violations.
• Network Security Design, Hardening & Continuous Improvement
• Define and improve network security standards, firewall rule governance, access‑control processes, segmentation models, VPN security, and zero trust network access controls.
• Review existing firewall and network security rulesets to remove unnecessary access, reduce risk, improve manageability, and ensure alignment with business and security requirements.
• Plan and implement network security improvements, configuration changes, upgrades, migrations, hardening activities, and stability enhancements.
• Validate implemented changes through traffic testing, log review, connectivity checks, rule verification, and post‑change monitoring.
• Collaboration, Automation & Global Support
• Work closely with IT, Infrastructure, Security, Cloud, DevOps, and R&D teams to support business needs while maintaining strong network security controls.
• Support R&D requirements with flexibility and practical problem‑solving, balancing delivery needs with secure design, controlled access, and operational stability.
• Develop scripts, queries, reports, and repeatable workflows to improve firewall rule reviews, monitoring, troubleshooting, reporting, and operational efficiency.
• Provide hands‑on support for a global environment with multiple sites, branches, remote users, and cross‑region infrastructure dependencies.

Qualifications

• Experience:
• 5+ years of hands‑on experience in network security, firewall administration, enterprise networking, infrastructure security, or related technical roles.
• Strong hands‑on experience with firewalls, firewall policy management, ruleset creation and cleanup, NAT, VPN, ZTNA, routing, switching, and network segmentation, LAN/WAN, NAC and WIFI systems.
• Deep understanding of TCP/IP, routing protocols, VLANs, ACLs, site‑to‑site VPN, remote access VPN, DNS, DHCP, load balancing concepts, and secure network architecture.
• Proven ability to analyze firewall logs, network flows, packet captures, routing behavior, VPN issues, and monitoring alerts to troubleshoot complex connectivity and security problems.
• Experience improving network security control, visibility, monitoring, stability, and operational maturity in a global enterprise environment.
• Hands‑on experience with incident investigation, root‑cause analysis, technical remediation, configuration changes, rule validation, and post‑change verification.
• Experience working with R&D, IT, Infrastructure, Security, Cloud, and DevOps teams in dynamic environments with changing business and technical needs.
• Strong understanding of zero trust principles, least privilege access, network segmentation, secure remote access, and defense‑in‑depth network security controls.
• Ability to create and maintain clear operational procedures, rule documentation, implementation plans, troubleshooting guides, and technical reports.
• Experience with global networks, branch connectivity, data center networking, cloud connectivity, and hybrid infrastructure environments.
• Hands‑on experience with security and networking vendors such as Radware, Fortinet, Palo Alto Networks, Check Point, Cisco, Juniper, or equivalent technologies.
• Experience with network monitoring, automation, configuration management, and operational reporting tools.
• Experience supporting and securing R&D environments is an advantage.
• Certifications: Relevant certifications such as CCNA/CCNP Security, NSE, PCNSA/PCNSE, CCSA/CCSE, JNCIS‑SEC, Security+, SSCP, CISSP, or equivalent hands‑on experience.
• Skills:
• Strong hands‑on troubleshooting, analytical, and problem‑solving skills in complex network and security environments.
• Ability to work independently, prioritize operational tasks, and personally drive investigations, implementations, rule changes, and remediation activities to closure.
• Excellent spoken and written English.
• Strong communication skills with the ability to explain technical findings, risks, rule changes, connectivity issues, and remediation steps to technical and non‑technical stakeholders.

Primary Location

IN-IN-Bengaluru

Work Locations

Radware Shield Square India, Bengaluru

Job

Internet/Network Operations