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Senior Cyber Infrastructure Engineer (Network)

Ensign Infosecurity (Cybersecurity) Pte. Ltd.

D12 Toa Payoh, Balestier, SerangoonContractS$8,000 – S$12,000/mo

Posted 20 Jul 2026

About this role

Responsibilities Provide system & network infrastructure engineering and support from small to large scale security centric infrastructure projects Work closely with solution architects to define best approach for design and implementation of system and networks in physical and virtualized environments Responsible as point of escalation for technical problems and SME in areas including system security, network architectures, implementation and operations Lead technical implementation of new network and system solutions alongside project managers as well as fronting stakeholders like customers, telco and product partners Perform and validate system and network hardening and maintain baseline configuration documentations Lead ad-hoc activities such as major maintenance, migrations or disaster recovery Assist in compliance and audit activities for enforcement of policies, standards and procedures Take on the role of a mentor to junior engineers Requirements Diploma/Degree in Engineering/Information System/Information Security from a recognized institution with 5 or more years of relevant working experience In-depth knowledge of networking foundations and industry standard IT protocols Strong experience in Windows, Linux and Vmware/HyperV systems Strong experience in Next-Gen Firewalls, VPN, switching/routing, load balancers and proxies Experience in windows server domain environment such as active directory, group policies, DNS/DHCP and SCCM etc. Hands-on experience in system and network security-related tasks such as hardening, patching, capacity planning and design In-depth knowledge in network and systems security Experience in scripting, resource capacity planning and system design will be an added advantage Good communication skills with driven and motivated working attitude Ability to excel and work effectively in a team Preferred Skills /Qualities Professional information technology/security certifications such as ITIL, CCNA, CCNP, MCSE, VMware will be preferred but related qualification (i.e. CCIE, CISSP etc.) will be an advantage Certification in Microsoft, Vmware, Cisco, Checkpoint, Palo Alto, Fortinet, F5 products and technologies is desired Other Special Working Conditions Able to be on standby after office hours

What they're looking for

CCIENetwork Technical Specifications DevelopmentActive DirectoryTechnical Project Leadership

About Ensign Infosecurity (Cybersecurity) Pte. Ltd.

Industry: Financial & insuranceWebsite ↗

Frequently asked questions

What does a Senior Cyber Infrastructure Engineer (Network) at Ensign Infosecurity (Cybersecurity) Pte. Ltd. do?

Responsibilities Provide system & network infrastructure engineering and support from small to large scale security centric infrastructure projects Work closely with solution architects to define best approach for design and implementation of system and networks in physical and virtualized environme…

What skills does this Senior Cyber Infrastructure Engineer (Network) role need?

Key skills for this role include CCIE, Network Technical Specifications Development, Active Directory, Technical Project Leadership.

How much does a Senior Cyber Infrastructure Engineer (Network) at Ensign Infosecurity (Cybersecurity) Pte. Ltd. pay?

This role lists a salary of S$8,000 – S$12,000 per month.

Is this Senior Cyber Infrastructure Engineer (Network) role remote, hybrid, or on-site?

The listing is based in D12 Toa Payoh, Balestier, Serangoon. Check the posting for remote or hybrid options.

How do I apply for this Senior Cyber Infrastructure Engineer (Network) role?

You can apply directly on Ensign Infosecurity (Cybersecurity) Pte. Ltd.'s careers page. ApplyLah can tailor your résumé and cover letter to this exact role in seconds first.