BENGALURU · FULLTIME
GMS - Senior - Firewall and VPN Management
Ernst Young
Bengaluru · onsite · Posted 4d ago
Sourced from
Undisclosed2–6 yrsfulltimeBengaluru
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Section · 01
About this role
Senior Network Security Engineer (Firewall management including VPN Management)
Experience Level: 56 Years
We are seeking a Senior Network Security Engineer to lead and execute the end-to-end lifecycle of our firewall and VPN infrastructure. This role is highly hands-on and spans the complete service delivery model: Assess, Build, Transition, and Operations. The ideal candidate will have deep technical expertise in enterprise infrastructure security, a strong understanding of Zero Trust principles, and the ability to maintain continuous security management with minimal disruption to business operations.
Key Responsibilities Assess (Design & Architecture Review) - Conduct comprehensive assessments of existing network security postures, firewall rulesets, and VPN architectures.
- Identify security gaps, vulnerabilities, and optimization opportunities in legacy environments.
- Collaborate with architecture teams to design scalable, high-availability (HA) firewall and VPN solutions tailored to enterprise requirements.
- Define and document rule-base standardization, routing requirements, and integration points with existing SIEM and logging infrastructure.
- Deploy and configure Next-Generation Firewalls (NGFW) and VPN gateways from the ground up.
- Implement site-to-site (IPsec) and remote-access (SSL/TLS) VPN solutions, ensuring secure and seamless connectivity.
- Configure advanced threat protection features, including IPS/IDS, web filtering, and application control.
- Establish secure baseline configurations and implement segmentation aligned with Zero Trust Architecture.
- Plan and execute complex firewall migrations and VPN cutovers with zero-to-minimal downtime.
- Develop robust rollback plans and execute User Acceptance Testing (UAT) prior to go-live.
- Produce comprehensive As-Built documentation, standard operating procedures (SOPs), and topology diagrams.
- Conduct knowledge transfer sessions to align support teams on the newly deployed architecture.
- Serve as the senior technical escalation point for complex firewall and VPN incidents.
- Perform continuous firewall rule lifecycle management (rule recertification, unused rule cleanup, and optimization).
- Manage firmware upgrades, patch management, and vulnerability remediations for security appliances.
- Monitor VPN performance, tunnel stability, and firewall throughput, proactively addressing capacity constraints.
- Ensure continuous compliance with industry security frameworks and internal governance standards.
- Understanding of ITIL-based Change Management, managing end-to-end change lifecycle activities, CAB coordination, and compliant implementation of infrastructure and application changes.
- Experience: 56 years of dedicated experience in network security engineering and operations.
- Core Technologies: Deep, hands-on expertise with leading NGFW platforms (e.g., Palo Alto Networks, Fortinet, Check Point, or Cisco Firepower).
- VPN Mastery: Strong proficiency in configuring, troubleshooting, and scaling IPsec, SSL VPN, GRE, and SD-WAN integrations.
- Networking Foundations: Advanced understanding of routing protocols (BGP, OSPF), NAT, VLANs, and TCP/IP fundamentals.
- Enterprise Methodologies: Proven experience working through structured Assess, Build, Migrate, and Run phases in complex enterprise environments.
- Certifications: Industry-recognized vendor certifications (e.g., PCNSE, NSE 4/7, CCSE) are highly preferred. Foundational security certifications (CISSP, CCSP, or SSCP) are a strong plus.
- Soft Skills: Strong analytical problem-solving skills, ability to mentor junior analysts, and excellent documentation practices.
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Section · 02
Skills
Firewall ManagementGREinfrastructure securityfirewallsFirmwareipsFortinetCisco FirepowercisspintegrationsChange ManagementCCSPCapital MarketsdeploymentFirewallArchitectureCiscocomplianceBusiness Operations
Section · Company
About Ernst & Young
Ernst Young
Management Consulting
44k+
employees
2002
24 years old
Gurgaon / Gurugram, Haryana
India
₹15.3L PA avg
Avg at Ernst & Young
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