Senior IT System Engineer

About the company

Join Alphline Technologies, a dynamic, innovative Singapore-based IT solutions company where creativity meets technical expertise. We craft cutting-edge web, mobile, and infrastructure solutions that empower businesses to thrive. Since 2002, we have served MNCs, government agencies, SMEs, and start-ups with secure, high-quality technology solutions tailored to meet stringent standards.

At Alphline Technologies, we're more than just an IT company; we're a team of passionate technologists dedicated to delivering impactful solutions. We foster a collaborative and innovative culture where your contributions are valued, and you'll have opportunities to grow alongside our success.

Your tasks

We are seeking a technically proficient and proactive Senior IT System Engineer to play a key role in designing, deploying, and managing robust infrastructure solutions across our client environments. As a Senior IT System Engineer, you will take end-to-end ownership of on-premises infrastructure , from solution design and implementation through to ongoing operations and optimization. You will also serve as a senior technical partner to our clients , leading infrastructure projects, resolving complex technical challenges, and providing guidance to the wider engineering team. This is a hands-on role suited to an experienced engineer who enjoys technical ownership, client engagement, problem-solving, and mentoring others .

• Client & Project Ownership — Act as the senior technical point of contact for assigned client accounts. Lead infrastructure projects from scoping and solution design through implementation, testing, documentation, and go-live.
• Infrastructure Design & Administration — Design, deploy, manage, and maintain on-premises Windows and Linux server environments, ensuring reliability, performance, and availability.
• Virtualization & Storage — Administer enterprise virtualization platforms such as VMware, Hyper-V, and Nutanix , together with SAN/NAS storage solutions. Perform capacity planning and optimization to support business requirements.
• Network Administration — Support and administer network infrastructure, including LAN/WAN, VLANs, routing, switching, firewalls, and VPNs, working closely with relevant teams and vendors where required.
• Operations & Incident Management — Oversee day-to-day infrastructure operations, monitoring, incident response, troubleshooting, and root cause analysis, driving issues through to permanent resolution.
• Security & Hardening — Implement system hardening, patch management, access controls, and other security best practices to maintain a secure and resilient infrastructure environment.
• Backup & Disaster Recovery — Implement, monitor, maintain, and periodically test backup and disaster recovery solutions to ensure data protection and business continuity.
• Compliance & Validation — Manage infrastructure in accordance with applicable ISO standards, CIS benchmarks, and GxP requirements, ensuring appropriate controls and documentation are maintained.
• Technical Documentation — Prepare and maintain SOPs, change records, validation documents, and infrastructure diagrams.
• Technical Leadership & Mentoring — Guide and mentor junior IT System Engineers, reviewing their work, supporting their technical development, and acting as an escalation point for complex issues.
• Innovation & Continuous Improvement — Identify opportunities to improve infrastructure reliability, security, efficiency, and automation. Contribute to hybrid/cloud initiatives and infrastructure improvement projects in collaboration with other teams.

Requirements

• Degree/Diploma in IT, Computer Science, or a related discipline
• At least 3 years of hands-on experience in on-premises IT infrastructure operations
• Strong experience with:
• Microsoft Windows Server, Active Directory, DNS, DHCP
• Linux server administration (at least one major distribution)
• Designing and architecting virtualization environments (VMware, Microsoft Hyper-V, or Nutanix AHV)
• Enterprise storage (SAN/NAS)
• Core networking fundamentals (LAN/WAN, VLANs, firewall, VPN)
• Proven ability to troubleshoot and resolve infrastructure issues independently
• Proven track record owning client relationships and leading project delivery end-to-end
• Comfortable guiding or mentoring junior engineers
• Fluent in English and Mandarin (spoken and written) to communicate with Chinese-speaking stakeholders and clients
• Able to work independently while collaborating effectively with internal teams

• Immediate availability or short notice period
• No visa or work pass sponsorship required, now or in the future
• Experience in a regulated or compliance-driven environment (e.g., pharma, MNC)
• ISO27001
• MSSQL administration
• Scripting or automation (PowerShell, Bash, VBA)
• DevOps or infrastructure as Code (Ansible, Terraform, CI/CD)
• Cloud platforms (AWS, Azure, or GCP)
• Monitoring and observability tools (ELK, TIG, or similar)
• Professional certifications in:
• Infrastructure (VMware, Microsoft, Nutanix)
• Networking (CCNA / CCNP)
• Security (CompTIA Security+)
• Cloud platforms

What we offer

• Work-from-anywhere once per week
• Competitive salary and performance-based bonuses
• Opportunities for professional development and career growth
• Up to 22 days of Annual Leave
• Health and wellness benefits

Other

Working Hours & Location

• 5-day workweek (Mondays - Thursdays 9:30 am – 6:30 pm; Fridays 8:30 am – 5:30 pm)
• Location: Ang Mo Kio