Engineer - Enterprise Network Security
Quadrasystems Net · Coimbatore · onsite · Posted 27d ago
Undisclosed0–4 yrsfulltimeSourced from
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About this role
Job Summary:
We are looking for an Enterprise Network Security Engineer to support 24/7 Managed Services operations. The role focuses on continuous monitoring, management, and protection of enterprise network security infrastructure, ensuring high availability, strong security posture, and strict SLA adherence. The engineer will handle incidents, changes, and proactive security operations across multiple customer environments.
Key Responsibilities:
Provide 24/7 monitoring and support for enterprise network security infrastructure
Manage and troubleshoot Next-Generation Firewalls (NGFW)
Handle L2/L3 incidents related to:
Firewall policy issues
VPN (IPSec, SSL, Site-to-Site, Remote Access)
IPS/IDS alerts
Network segmentation and access issues
Perform real-time alert analysis, triage, and escalation as per SOP
Implement and review firewall rules, NAT, security policies, and routing changes
Monitor and maintain High Availability (HA) and failover configurations
Investigate and respond to security incidents such as:
Intrusion attempts
DDoS attacks
Suspicious traffic patterns
Policy violations
Perform network security health checks and posture assessments
Ensure logs are forwarded and integrated with SIEM systems
Participate in vulnerability remediation and security hardening activities
Maintain accurate ticket updates and documentation in ITSM tools
Prepare shift handover notes and operational reports
Coordinate with OEM TAC teams and internal engineering teams
Support onboarding of new enterprise customers into managed services
Ensure compliance with SLAs, KPIs, and customer security requirements
Technical Skills Required:
Strong experience with:
Enterprise Firewalls
Firewall policy management and optimization
IPS/IDS, Web Filtering, Application Control
Solid understanding of:
Routing and Switching (BGP, OSPF, VLANs, Subnets)
VPN technologies (IPSec, SSL VPN)
Network segmentation and Zero Trust concepts
Experience with:
Secure SD-WAN
Cloud network security (Azure/AWS - basic to intermediate)
SIEM log analysis and integration
Packet analysis tools (Wireshark, TCPdump)
Knowledge of:
DNS security, DDoS protection
WAF and proxy concepts
Compliance standards (ISO 27001, PCI-DSS, SOC2)
Familiarity with:
Ticketing tools (ServiceNow, Freshservice, Jira, etc.)
Network monitoring systems (NMS, SNMP, NetFlow)
Behavioral & Operational Skills:
Willingness to work in 24/7 rotational shifts
Strong troubleshooting and root-cause analysis skills
Ability to work under pressure in incident situations
Clear communication and strong documentation discipline
Ownership-driven and customer-focused approach
Strong collaboration with shift teams and escalation teams
Strict adherence to SOPs and security processes
Certifications (Preferred):
CCNA Security / CCNP Security
CEH, Security+
ITIL Foundation
KPIs for the Role:
SLA and response-time compliance
Incident resolution quality and closure rate
Change success rate (zero-impact changes)
Security incident containment effectiveness
Shift handover accuracy
Customer satisfaction score
Proactive risk identification and prevention
Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.
Sourced from naukri
Skills
customer satisfactionitsmDNSfirewallslog analysisamazon web servicesipsIso 27001cehDssCCNPanalysis toolsddosIncident ResolutionCCNAitsm toolsNetwork SecurityDNS securityJira AtlassiancloudFirewallcomplianceMicrosoft AzureNetwork Monitoring
About Quadrasystems Net
Quadrasystems Net
IT Services & Consulting
75
employees
Coimbatore, Tamil Nadu
India
₹4L PA avg
Avg at Quadrasystems Net
About
Quadra is a global award-winning cloud infrastructure solutions provider, focused on helping customers build agile and intelligent enterprises. Quadra is a trusted technology advisor to India’s top business houses and brands, helping them to navigate technological change and complexity, while enabling them to connect technology with business outcomes. Quadra’s deep skills and experience, by harnessing a team that possesses more than 750+ professional IT certifications, combined with innovative services and custom IP solutions have helped over 3,000 customers modernize their businesses.
Industries
Cyber SecurityInformation ServicesInformation Technology
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