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Salary
$47k – $66k per year (gross)
Location
In office (Singapore)
Experience
4+ years exp
Employment
Contractor

First seen by Alion on Oct 23, 2026.

Overview
Company
Impact
Profile match
Company Profile Opensource Pte Ltd, headquartered in Singapore, operates as a private limited company. The primary thrust of our enterprise centers on the realm of IT infrastructure.
Job Responsibilities
  • Provide project deployment and implementation support for customers’ Enterprise IT Network Services.
  • Work closely with the Project Manager and Technical Lead to fulfil project deliverables, timelines and technical requirements.
  • Perform hands-on installation, configuration, integration, implementation, migration and validation of network and security solutions.
  • Configure, implement and troubleshoot LAN/WAN/WLAN environments.
  • Perform hands-on implementation and support involving:Cisco routers and switchesAlcatel network switchesCheck Point firewallsPalo Alto firewallsFortinet / FortiGate firewalls
  • Support network security solutions and security appliances.
  • Perform firewall policy/rule configuration, troubleshooting and implementation activities.
  • Troubleshoot network connectivity, routing, switching, firewall and performance-related issues.
  • Support network monitoring and network appliances where required, including SolarWinds, F5 LTM/GTM and related technologies.
  • Support infrastructure migration and upgrade activities.
  • Prepare and update technical documentation including network diagrams, installation procedures, implementation plans, support documents and preventive maintenance documentation.
  • Develop test cases and conduct testing / proof-of-concept activities for new hardware and software before deployment.
  • Perform post-implementation testing and validation.
  • Raise and follow up TAC/support cases with principal vendors for complex technical issues until resolution.
  • Support after-office-hours implementation and scheduled maintenance activities when required.
Job Requirements
  • Hands-on experience in Cisco, Alcatel, Check Point, Palo Alto and Fortinet technologies.
  • Practical experience in implementation and troubleshooting of LAN, WAN and network security infrastructure.
  • Hands-on experience with Cisco routers and switches, including configuration and troubleshooting.
  • Experience with enterprise firewall configuration, deployment and troubleshooting.
  • Knowledge of network routing, switching, VLAN, TCP/IP and network security concepts.
  • Experience with F5, Aruba, Cisco ISE, SolarWinds or A10 will be an advantage.
  • Cloud infrastructure/networking exposure will be an advantage.
  • Cisco certification such as CCNA / CCNP is preferred.
  • Good analytical and problem-solving skills.
  • Good technical documentation and communication skills.
  • Strong customer service orientation.
  • Able to work independently as well as in a team-oriented environment.
  • Able to work flexible hours, especially during scheduled after-office-hours maintenance windows.

Skills

TCP/IP, Fortinet, Troubleshooting Procedures, CCNP, Infrastructure Migrations, Technical Project Leadership, Aruba Wireless, Cloud Infrastructure, Cisco Routers, Troubleshoot Lan Problems, LAN/WAN management, Implementation Support, IT Project Implementation, Security Solutions, Deployment, Firewall Management

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