DL
Network Security Engineer
Diverse Lynx India
🇺🇸 United States
On-site
Mid level
3 months ago
- Network Security
- WAF
- ITIL
- Change Management
- Zero Trust
- Cisco
- Fortinet
- IPSec
- SSL
- TCP/IP
- DNS
- BGP
- OSPF
- VLANs
- ACLS
- Zscaler
- AWS
- Azure
- GCP
- Wireshark
- Tcpdump
- Palo Alto Networks
- CompTIA Security+
- Incident Response
3 months ago
Job Title: Network Security Engineer
Location: Bangalore / Chennai (Work from Office)
Job Summary
We are seeking an experienced Network Security Engineer to support and manage enterprise security infrastructure within a shared services environment. The role involves handling Level 2 (L2) operational activities across Firewall, Proxy, IDS/IPS, VPN, WAF, DDoS Protection, and Network Access Control technologies. The ideal candidate will possess strong troubleshooting skills, hands-on experience with leading security platforms, and the ability to manage security incidents while ensuring adherence to ITIL processes and service-level agreements (SLAs).
Key Responsibilities
- Manage, monitor, and troubleshoot network security technologies including Firewalls, Proxy Solutions, IDS/IPS, VPN, WAF, DDoS Protection, and NAC platforms.
- Perform L2 operational support, incident resolution, and root cause analysis for infrastructure security issues.
- Act as the primary escalation point for Firewall, Proxy, VPN, WAF, and DDoS-related incidents raised by internal teams and customers.
- Provide technical guidance and support to team members on network and security-related issues.
- Review, prioritize, assign, and track tickets to ensure timely resolution within defined SLAs.
- Prepare and analyze weekly and monthly security operational metrics and reports.
- Participate in incident, problem, and change management activities in accordance with ITIL best practices.
- Support secure network design and implementation initiatives, including network segmentation and Zero Trust architectures.
- Collaborate with cross-functional teams to ensure the availability, performance, and security of enterprise network infrastructure.
- Maintain operational documentation, standard operating procedures (SOPs), and knowledge base articles.
- Participate in 24x7 shift operations and on-call support when required.
Network Security Technologies
- Strong hands-on experience managing and troubleshooting:
- Firewalls: Palo Alto, Cisco, Fortinet, Check Point
- IDS/IPS Solutions
- VPN Technologies (IPSec, SSL VPN)
- Web Application Firewalls (WAF)
- DDoS Protection Solutions
- Network Access Control (NAC)
- Deep understanding of networking protocols and technologies:
- TCP/IP
- DNS
- BGP
- OSPF
- VLANs
- Switching Concepts
- Routing Fundamentals
- Strong knowledge of secure network architecture principles including:
- Network Segmentation
- Zero Trust Security Models
- Excellent understanding of ACLs, security policies, and firewall rule management.
- Strong knowledge of IPSec tunneling, GRE, HTTP/HTTPS, and DNS protocols.
- Good understanding of:
- Zscaler Internet Access (ZIA)
- Zscaler Private Access (ZPA)
- Microsoft Entra ID Access Management
- Cisco Client and RADIUS Authentication Services
- WAF deployment and administration
- Familiarity with security controls and configurations in:
- AWS
- Microsoft Azure
- Google Cloud Platform (GCP)
- Hands-on experience with network troubleshooting and packet analysis tools:
- Wireshark
- tcpdump
- Traceroute
- MTR
- Ability to diagnose complex network and security incidents effectively.
- Excellent verbal and written communication skills.
- Strong analytical and problem-solving capabilities.
- Ability to work independently and collaboratively in a fast-paced environment.
- Strong stakeholder management and customer-facing communication skills.
- Flexibility to adapt to changing priorities and operational requirements.
- Ability to mentor junior team members and provide technical leadership during shifts.
Education
- Bachelor's degree in Computer Science, Information Technology, Cyber Security, or a related field.
- Experience supporting enterprise security environments with technologies such as Firewall, Proxy, VPN, WAF, DDoS Protection, and Cloud Security.
- Hands-on administration, monitoring, and L2 troubleshooting experience with:
- Cisco Security Solutions
- Palo Alto Networks
- Fortinet Products
- ITIL v4 Foundation
- CompTIA Security+
- Network Fundamentals Certification
- Palo Alto, Fortinet, Cisco Security Certifications (preferred)
- Work from Office (Bangalore/Chennai).
- Willingness to work in a 24x7 rotational shift environment.
- Participation in incident response and critical outage support activities as required.
Network Security Engineer · Diverse Lynx India