Senior IT Infrastructure Engineer - On-Prem & Virtualization Lead

ALPHLINE TECHNOLOGIES PTE. LTD.; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

Alphline Technologies PTE. LTD. in Singapore seeks a Senior IT System Engineer to design, deploy, and manage robust on‑prem infrastructure across client environments. You will own projects end‑to‑end, from design to go‑live, and mentor engineers.

In this hands‑on role, you’ll lead security hardening, backup/DR, and compliance efforts while collaborating with internal teams and clients to deliver reliable technology solutions.

Qualifications

• Degree or Diploma in IT/CS or related field.
• 3+ years hands-on on-prem infrastructure operations.
• Experience with Windows Server, AD, DNS, DHCP.
• Linux server administration (major distro).
• Designing/architecting virtualization (VMware/Hyper‑V/Nutanix).
• Enterprise storage (SAN/NAS).
• Core networking (LAN/WAN, VLANs, firewall, VPN).
• Troubleshooting and independent issue resolution.
• Proven client relationship ownership and end-to-end delivery.
• Mentoring junior engineers and teamwork.
• Fluent English and Mandarin communications.

Responsibilities

• Own client accounts; lead infrastructure projects from design to go-live.
• Design, deploy, manage on‑prem Windows/Linux servers.
• Manage virtualization and storage platforms; plan capacity.
• Administer network including LAN/WAN, VLANs, firewalls, VPNs.
• Oversee daily operations; incident response and RCAs.
• Implement security hardening and patch management.
• Backup/DR planning and testing to ensure continuity.
• Ensure ISO, CIS, and GxP compliance; document controls.
• Prepare SOPs and infrastructure diagrams for governance.
• Mentor junior engineers; provide technical guidance.
• Drive continuous improvement and automation initiatives.

Skills

Windows Server & AD

Linux server admin

VMware/Hyper-V/Nutanix

Storage SAN/NAS

Networking fundamentals

Incident & problem solving

Client relationship management

English & Mandarin

Education

Degree or Diploma in IT/CS

Tools

PowerShell

Bash

Terraform

Ansible

Job description

Alphline Technologies PTE. LTD. in Singapore seeks a Senior IT System Engineer to design, deploy, and manage robust on‑prem infrastructure across client environments. You will own projects end‑to‑end, from design to go‑live, and mentor engineers.

In this hands‑on role, you’ll lead security hardening, backup/DR, and compliance efforts while collaborating with internal teams and clients to deliver reliable technology solutions.