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Network Security Engineer

Opensource Technologies Pte. Ltd.

IslandwideFull TimeS$6,000 – S$9,000/mo

Posted 17 Jul 2026

About this role

Job Description Provide project deployment for customers' Enterprise IT Network Services. Work closely with the Project Manager to fulfill project deliverables. Perform the role of Project Lead for medium to large-scale projects. Preferably possess basic knowledge and hands-on experience in the following areas: Design, planning, integration, implementation, and validation LAN/WAN/WLAN: Cisco, Alcatel, Aruba routers and switches Network security solutions Security appliances: Palo Alto, Fortinet, Check Point, Cisco IPS/IDS, Cisco ISE, Aruba ClearPass Network monitoring: SolarWinds Network appliances: F5 LTM/GTM, A10 LTM Build or migrate cloud infrastructure solutions. Troubleshooting and problem identification. Documentation skills, including creating and updating detailed environment design, installation, support, and preventive maintenance documentation. Develop test cases and conduct proof-of-concept (POC) testing for new software and hardware prior to upgrade/deployment. Establish TAC cases with principal vendors and manage complex issues through to resolution. Able to work flexible hours, especially during scheduled after-office maintenance windows. Requirements ITE / Diploma / Bachelor's Degree in Engineering, Computer Science, Information Technology, Security, or equivalent. Preferably hold Cisco certifications (CCNP/CCIE). Experience with Cisco, Alcatel, F5, and firewall products. Experience in LAN, WAN, WLAN, data networking, and security networking implementation. Able to work in a fast-paced environment. Strong analytical and problem-solving skills. Highly self-motivated with keen attention to detail. Experience working in a team-oriented and collaborative environment. Good communication and documentation skills. Strong customer service orientation. Location: Jurong East

What they're looking for

Data NetworkingPlanningProject LeadershipComputer Engineering

About Opensource Technologies Pte. Ltd.

Industry: Information & communications

Frequently asked questions

What does a Network Security Engineer at Opensource Technologies Pte. Ltd. do?

Job Description Provide project deployment for customers' Enterprise IT Network Services. Work closely with the Project Manager to fulfill project deliverables. Perform the role of Project Lead for medium to large-scale projects. Preferably possess basic knowledge and hands-on experience in the foll…

What skills does this Network Security Engineer role need?

Key skills for this role include Data Networking, Planning, Project Leadership, Computer Engineering.

How much does a Network Security Engineer at Opensource Technologies Pte. Ltd. pay?

This role lists a salary of S$6,000 – S$9,000 per month.

Is this Network Security Engineer role remote, hybrid, or on-site?

The listing is based in Islandwide. Check the posting for remote or hybrid options.

How do I apply for this Network Security Engineer role?

You can apply directly on Opensource Technologies Pte. Ltd.'s careers page. ApplyLah can tailor your résumé and cover letter to this exact role in seconds first.