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red alpha cybersecurity pte. ltd.

Singapore / Global

Technical Lead (Network & Security Firewall)

Job Description

Role Summary

The Technical Lead (Network & Security - Firewall) is responsible for leading the engineering, implementation, operation, and support of firewall and network security solutions. The role serves as the primary technical escalation point and ensures successful deployment and operational excellence of network security infrastructure.

Key Responsibilities

Technical Delivery

Lead firewall implementation, migration, and upgrade activities.

Configure and manage:

Palo Alto Firewalls

Fortinet Firewalls

Check Point Firewalls

Cisco Secure Firewall

Implement firewall policies, NAT, routing, and VPN configurations.

Conduct system integration and testing.

Operational Support

Provide L3/L4 technical support.

Troubleshoot complex network and security incidents.

Lead root cause analysis and problem management activities.

Implement performance tuning and security hardening.

Team Leadership

Provide technical guidance and mentoring to engineers.

Review technical deliverables and implementation plans.

Ensure adherence to operational procedures and standards.

Coordinate change activities and maintenance windows.

Security Management

Conduct firewall policy reviews and optimization.

Support vulnerability remediation activities.

Ensure compliance with security standards and governance requirements.

Support audits and security assessments.

Documentation

Prepare implementation plans and technical procedures.

Maintain HLD, LLD, SOPs, and operational runbooks.

Develop knowledge base articles and operational standards.

Aptitude

Strong troubleshooting mindset.

Logical and structured thinking.

Detail-oriented and quality-focused.

Calm under pressure during incidents.

Continuous learning attitude.

Strong ownership and accountability.

Competencies

Technical Competencies

Firewall Administration

Routing and Switching

LAN/WAN Technologies

VPN Technologies

Network Security Operations

Threat Analysis

Security Incident Response

Performance Monitoring

System Integration

Change Management

Leadership Competencies

Team Leadership

Coaching and Mentoring

Incident Leadership

Customer Management

Communication Skills

Collaboration and Coordination

Abilities

Lead firewall deployment and migration activities.

Troubleshoot and resolve critical incidents.

Analyze packet captures and traffic flows.

Perform security and operational assessments.

Work independently with minimal supervision.

Manage technical escalations and stakeholder communications.

Experience

7-10 years of Network & Security experience.

3-5 years in a technical lead role.

Hands-on experience with enterprise firewall platforms.

Experience working in managed services or large enterprise environments.

Good-to-Have Certifications

Firewall & Security

Palo Alto PCNSE

Palo Alto PCCSE

Fortinet NSE 5/7 or FCSS

Check Point CCSA/CCSE

Cisco Secure Firewall

CISSP

CompTIA Security+

Networking

CCNP Enterprise

CCNA

Juniper JNCIS/JNCIP

Arista ACE

Cloud Security

AWS Security Specialty

Microsoft Azure Security Engineer (AZ-500)

Google Cloud Professional Cloud Security Engineer

Service Management

ITIL Foundation

ITIL Managing Professional

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