Firewall Engineer (Network Security - L1 / L2)
Location: Airoli, Navi Mumbai
Employment Type: Full-Time
Work Mode: Work from Office
Shift: 24×7 Rotational Shifts
Experience: 2 to 10 Years
Notice Period: Immediate to 30 Days Preferred
Job Summary
We are seeking experienced Firewall Engineers to support and manage enterprise network security infrastructure in a highly secure and mission-critical environment. The role involves monitoring, administration, troubleshooting, policy management, incident handling, and ensuring the availability, performance, and security of firewall infrastructure.
Candidates should possess hands-on experience with enterprise firewall technologies and strong knowledge of networking and network security concepts.
Key Responsibilities
- Monitor, manage, and support enterprise firewall infrastructure in a 24×7 operational environment.
- Configure, administer, and troubleshoot firewall technologies including Palo Alto, Cisco ASA, Checkpoint, and Fortinet.
- Manage firewall policies, rules, NAT configurations, and security exceptions.
- Perform incident, problem, change, configuration, and capacity management activities.
- Conduct packet capture, traffic analysis, and troubleshooting using tools such as Wireshark and PCAP.
- Monitor security infrastructure proactively to identify and prevent service disruptions.
- Troubleshoot network and security issues across OSI layers.
- Perform daily health checks, audits, compliance validation, and performance monitoring.
- Apply security patches, firmware upgrades, and configuration updates.
- Respond to network outages and security incidents, perform root cause analysis, and ensure timely resolution.
- Maintain firewall configuration backups and documentation.
- Coordinate with OEM vendors for TAC support, RMA, troubleshooting, and hardware replacement.
- Ensure adherence to SLAs and timely closure of incidents and service requests.
- Create and maintain SOPs, runbooks, technical documentation, and network diagrams.
- Collaborate with infrastructure, application support, NOC, SOC, and security teams.
- Escalate complex issues to higher-level teams with proper analysis and documentation.
- Support security integrations with Active Directory, IAM, PAM, SIEM, SOAR, and monitoring platforms.
- Mentor junior engineers and assist in knowledge-sharing initiatives.
Required Technical Skills
Mandatory
- 2-10 years of experience in Network Security and Firewall Administration.
- Hands-on experience with at least two of the following firewall technologies:
- Palo Alto
- Cisco ASA
- Checkpoint
- Fortinet
- Strong understanding of:
- TCP/IP Networking
- Routing & Switching
- Firewall Security Concepts
- NAT & Access Control Policies
- Network Security Fundamentals
- Experience working in Windows, Linux, and Unix environments.
- Knowledge of packet capture and traffic analysis tools.
- Experience with firewall incident management and troubleshooting.
Preferred- Experience in enterprise or BFSI environments.
- Exposure to datacenter, disaster recovery, cloud, and branch security architectures.
- Knowledge of:
- Active Directory (AD)
- IAM / PAM Solutions
- SIEM & SOAR Platforms
- Security Monitoring Tools
- Exposure to compliance, audits, and regulatory frameworks.
- Experience with automation, REST APIs, or scripting.
Soft Skills
- Excellent verbal and written communication skills.
- Strong analytical and troubleshooting abilities.
- Ability to work effectively in high-pressure and fast-paced environments.
- Strong ownership and accountability.
- Good stakeholder and client management skills.
- Ability to work collaboratively across teams.
- Willingness to learn and adapt to new technologies.
Educational Qualification
- Bachelor's Degree in Information Technology, Computer Science, Engineering, or a related technical discipline.
Preferred Certifications
- Palo Alto Certifications
- Checkpoint Certifications
- Cisco Security Certifications
- Fortinet Certifications
- Other relevant Network Security Certifications
