IT Support Administrator

About the role

CSI Tech is a Singapore-based Managed IT and cybersecurity provider serving SMBs across the maritime, manufacturing and professional services sectors, primarily on Microsoft 365. We're a small, hands-on team, and this is our first dedicated support hire. You'll own the day-to-day support and maintenance that keeps our clients running, both remotely and on-site, and you'll work directly with the founder to learn the full managed-services stack. This is a support and maintenance role, not pre-sales or project delivery, so you can go deep on doing the fundamentals well. We care a great deal about documentation. A big part of this role is creating and maintaining clear, accurate IT documentation for every client, so strong written English and a tidy, methodical mind matter as much as technical skill.

Responsibilities

• Handle first and second line support across multiple SMB clients, both remotely and on-site, via our ticketing system: log, triage, resolve and escalate, keeping clients updated throughout.
• Support and troubleshoot Windows 11 endpoints, including setup, imaging and deployment.
• Administer Microsoft 365 environments: user provisioning and offboarding, mailboxes and licensing, Entra ID, MFA, and the basics of SharePoint and Teams.
• Provide basic network support: routers, switches, firewalls, Wi-Fi and VPN connectivity.
• Monitor patching and RMM alerts, and follow through to resolution.
• Respond to endpoint security alerts under guidance.
• Create and maintain high-quality IT documentation: runbooks, network diagrams, asset registers and SOPs, kept current in our documentation platform.
• Travel to client sites across Singapore as needed for hands-on support.
• What you'll need from day one
• A diploma in IT, Infocomm or a related field, or up to two years of relevant experience.
• Solid working knowledge of Windows 11.
• Hands-on Microsoft 365 administration (admin centre, Entra ID, Exchange Online basics).
• Networking fundamentals: TCP/IP, DNS, DHCP, VLANs and basic firewall concepts.
• Clear, accurate written English for documentation and client updates.
• Strong critical thinking and problem-solving, and a genuine appetite to learn.
• Comfortable travelling to client sites in Singapore.
• Nice to have (we'll train the rest)
• Exposure to PSA/RMM, MDR, DNS filtering or endpoint security tools.
• Microsoft certifications such as MS-900, AZ-900 or MD-102.
• Any professional service or maritime or manufacturing IT exposure.

Benefits

Your Match

How well this role fits your profile.

Company Intel

What employees say

Worked at CSI TECH PTE. LTD.? Share your experience