Technical Lead (Network & Security – Firewall)

About This Job

Red Alpha Cybersecurity

Location: Singapore

Work Mode: On-site

Industry: Computer And Network Security

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 activitiesConfigure and manage: Palo Alto Firewalls, Fortinet Firewalls, Check Point Firewalls, Cisco Secure Firewall, etc.Implement firewall policies, NAT, routing, and VPN configurationsConduct system integration and testing

Operational Support

Provide L3/L4 technical supportTroubleshoot complex network and security incidentsLead root cause analysis and problem management activitiesImplement performance tuning and security hardening

Team Leadership

Provide technical guidance and mentoring to engineersReview technical deliverables and implementation plansEnsure adherence to operational procedures and standardsCoordinate change activities and maintenance windows

Security Management

Conduct firewall policy reviews and optimizationSupport vulnerability remediation activitiesEnsure compliance with security standards and governance requirementsSupport audits and security assessments

Documentation

Prepare implementation plans and technical proceduresMaintain HLD, LLD, SOPs, and operational runbooksDevelop knowledge base articles and operational standards

Aptitude

Strong troubleshooting mindsetLogical and structured thinkingDetail-oriented and quality-focusedCalm under pressure during incidentsContinuous learning attitudeStrong ownership and accountability

Competencies

Technical Competencies

Firewall AdministrationRouting and SwitchingLAN/WAN TechnologiesVPN TechnologiesNetwork Security OperationsThreat AnalysisSecurity Incident ResponsePerformance MonitoringSystem IntegrationChange Management

Leadership Competencies

Team LeadershipCoaching and MentoringIncident LeadershipCustomer ManagementCommunication SkillsCollaboration and Coordination

Abilities

Lead firewall deployment and migration activitiesTroubleshoot and resolve critical incidentsAnalyze packet captures and traffic flowsPerform security and operational assessmentsWork independently with minimal supervisionManage technical escalations and stakeholder communications

Experience

7–10 years of Network & Security experience3–5 years in a technical lead roleHands‑on experience with enterprise firewall platformsExperience working in managed services or large enterprise environments

Good-to-Have Certifications

Firewall & Security

Palo Alto PCNSEPalo Alto PCCSEFortinet NSE 5/7 or FCSSCheck Point CCSA/CCSECisco Secure FirewallCISSPCompTIA Security+

Networking

CCNP EnterpriseCCNAJuniper JNCIS/JNCIPArista ACE

Cloud Security

AWS Security SpecialtyMicrosoft Azure Security Engineer (AZ-500)Google Cloud Professional Cloud Security Engineer

Service Management

ITIL FoundationITIL Managing Professional

Salary

Commensurate With Experience And Qualifications

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