Network Security Engineer

1 week ago

Singapore RAPSYS TECHNOLOGIES PTE. LTD. Full time

Key Responsibilities Security Implementation & Management Deploy, configure, and maintain F5 systems including LTM , WAF , and API modules. Implement and manage Azure Cloud security controls, including APIM gateways and Network Security Groups (NSGs) . Maintain and administer firewall and intrusion prevention systems (e.g., Cisco FTD/FMC or equivalent). Monitor and troubleshoot network and security performance issues to ensure continuous protection and availability. Security Policy & Configuration Implement and enforce granular security policies across F5, firewalls, and Azure environments. Conduct regular rule base reviews , policy cleanups, and performance optimizations. Ensure consistent policy integration and configuration alignment across application delivery and network security platforms. Documentation & Collaboration Maintain accurate network diagrams, configurations, and standard operating procedures (SOPs) . Work closely with cloud, network, and application teams to align security policies with business and compliance requirements. Support security audits, incident investigations, and continuous improvement initiatives. Qualifications Experience 2–5 years of experience in network security or network engineering roles. Proven track record in deploying and maintaining F5 , Azure security , and firewall solutions. Technical Skills Hands-on experience with F5 BIG-IP platforms ( LTM , WAF/ASM , API ). Strong knowledge of Azure Cloud security , including NSG and APIM . Experience with firewall platforms (e.g., Cisco FTD/FMC , Palo Alto, or similar). Understanding of network protocols (TCP/IP, DNS, Familiarity with security concepts such as firewalls, IDS/IPS, VPNs , and zero-trust principles . Basic knowledge of automation or cloud-native security tools is an advantage. Preferred Certifications Microsoft Certified: Azure Security Engineer Associate Cisco Certified Network Professional (CCNP Security)F5 Certified Administrator or F5 Certified Technology Specialist (CTS)Other relevant certifications such as CISSP or CompTIA Security+#J-18808-Ljbffr

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