Senior Cyber Infrastructure Engineer
ENSIGN INFOSECURITY (CYBERSECURITY) PTE. LTD.
Singapore
5+ years
Posted Feb 9, 2026
Salary Range
SGD 84,000 - SGD 132,000 /year
SGD 7,000 - SGD 11,000/month
Skills Required
AzureCCNPActive DirectoryVMwareScriptingWindows ServerWindowsITILAPINetwork SecurityVirtualizationDNSLinuxCISSP
Job Description
Key Responsibilities
Security Implementation & Management:
- Deploy and maintain F5 system with experience in LTM, WAF, API
- Deploy and maintain Azure Cloud security with experience in APIM gateways
- Implementation, and maintenance of firewall management and security solutions.
Security Policy & Configuration:
- Implement, and enforce granular security policies on F5 , firewalls solutions and Azure APIM gateways
- Perform regular security policy rule base reviews, cleanups, and optimization to ensure a strong security posture and network performance.
- Integrate and configure F5 solutions , firewall and security solutions to enforce application delivery and security policies, including rules.
Documentation & Collaboration:
- Documentation for diagrams. configurations, and standard operating procedures.
- Collaborate closely with cross-functional teams to ensure security policies align with business objectives.
Qualifications
- Experience: Minimum of 3-5 years of hands-on experience in a network security or engineering role.
- Technical Skills:
- Hands-on experience with F5 BIG-IP platforms, including LTM, WAF/ASM and API
- Proven experience with Azure cloud platforms security, including NSG and APIM
- Implementation knowledge of network , firewall solution and management security, including FTD and FMC.
- Strong understanding of network protocols (TCP/IP, DNS, HTTP/S) and security principles (firewalls, IDS/IPS, VPNs).
Familiarity with automation, cloud security is a plus.
Certifications (Preferred)
- Microsoft Certified: Azure Security Engineer Associate
- Cisco Certified Network Professional (CCNP) Security
- F5 Certified Administrator or F5 Certified Technology Specialist (CTS).
- Other security certifications like CISSP or CompTIA Security+ are a plus.
About ENSIGN INFOSECURITY (CYBERSECURITY) PTE. LTD.
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