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red alpha cybersecurity

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, etc.

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

Salary

Commensurate with experience and qualifications

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