Onsite Infrastructure Support Engineer

Rapsys Technologies Pte Ltd.; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

Rapsys Technologies Pte Ltd. in Singapore seeks an Onsite Infrastructure Support Engineer to maintain and optimize IT infrastructure, ensuring seamless operations and high user satisfaction.

The role covers network, server, storage, and security duties with after-hours support as needed. The ideal candidate holds a Diploma or Degree in IT/Computing and has 5+ years in enterprise IT, incident/patch management, and strong problem-solving abilities.

Qualifications

• Diploma or degree in Information Technology, Computer Engineering, or related discipline.
• Minimum 5 years of experience supporting enterprise IT infrastructure in a production environment.
• Experience in incident management, infrastructure operations, maintenance, and patch management.

Responsibilities

• Monitor, maintain, and support network, server, storage, and security infrastructure.
• Perform health checks, preventive maintenance, and system monitoring activities.
• Support network devices including switches, routers, firewalls, VPNs, and related connectivity components.
• Assist in server administration, system recovery, hardware troubleshooting, and capacity monitoring.
• Investigate and resolve infrastructure incidents affecting service availability.
• Perform onsite troubleshooting and coordinate escalations with internal teams and vendors.
• Support service restoration activities within agreed response timelines.
• Participate in root cause analysis and issue resolution.
• Execute approved infrastructure changes, upgrades, firmware updates, and patch deployments.
• Perform configuration backups, validation testing, and rollback procedures.
• Support vulnerability remediation and system hardening activities.
• Maintain infrastructure documentation, asset inventories, network diagrams, and operational records.
• Coordinate with hardware vendors, service providers, and project teams for troubleshooting and maintenance activities.
• Prepare operational reports and support audit and compliance requirements.

Skills

TCP/IP

Routing & Switching

VLANs

DNS/DHCP

VPN

Firewall concepts

Windows/Linux OS

Monitoring tools

Education

Diploma or Degree in IT/Computing

Tools

Cisco

Fortinet

Palo Alto

VMware

Dell

HPE

Job description

We're Hiring: Onsite Infrastructure Support Engineer!

We are looking for a skilled and dedicated Onsite Infrastructure Support Engineer to join our team in Singapore. The ideal candidate will have substantial experience in maintaining and optimizing IT infrastructure, ensuring seamless operations, and providing exceptional support to users.

Location: Singapore, Singapore
Work Mode: Work from Office
Role: Onsite Infrastructure Support Engineer

Key Responsibilities

Infrastructure Operations

• Monitor, maintain, and support network, server, storage, and security infrastructure.
• Perform health checks, preventive maintenance, and system monitoring activities.
• Support network devices including switches, routers, firewalls, VPNs, and related connectivity components.
• Assist in server administration, system recovery, hardware troubleshooting, and capacity monitoring.

Incident & Problem Management

• Investigate and resolve infrastructure incidents affecting service availability.
• Perform onsite troubleshooting and coordinate escalations with internal teams and vendors.
• Support service restoration activities within agreed response timelines.
• Participate in root cause analysis and issue resolution.

Change & Patch Management

• Execute approved infrastructure changes, upgrades, firmware updates, and patch deployments.
• Perform configuration backups, validation testing, and rollback procedures.
• Support vulnerability remediation and system hardening activities.

Documentation & Vendor Coordination

• Maintain infrastructure documentation, asset inventories, network diagrams, and operational records.
• Coordinate with hardware vendors, service providers, and project teams for troubleshooting and maintenance activities.
• Prepare operational reports and support audit and compliance requirements.

Requirements

Experience

• Diploma or Degree in Information Technology, Computer Engineering, or related discipline.
• Minimum 5 years of experience supporting enterprise IT infrastructure in a production environment.
• Experience in incident management, infrastructure operations, maintenance, and patch management.

Technical Skills

• Good understanding of TCP/IP, routing, switching, VLANs, DNS, DHCP, VPN, and firewall concepts.
• Experience supporting network devices, servers, and operating systems.
• Familiarity with Windows Server and/or Linux environments.
• Knowledge of infrastructure monitoring and troubleshooting tools.

Preferred Skills

• Experience with Cisco, Fortinet, Palo Alto, VMware, Dell, or HPE technologies.
• Exposure to storage systems, RAID, SNMP, Syslog, and infrastructure monitoring solutions.
• Experience supporting data centers, critical infrastructure, transportation, utilities, or industrial environments.

Other Requirements

• Willing to work onsite in Singapore.
• Able to support after-hours maintenance and emergency incidents when required.
• Strong problem-solving, communication, and stakeholder management skills.

Preferred Certifications

• CCNA
• Fortinet Associate / NSE
• ITIL Foundation
• VMware or equivalent infrastructure certifications