Senior System Administrator

GREEN LINK DIGITAL BANK PTE. LTD.; Singapore; On-site; SGD 70,000 - 90,000; Full time

Job summary

A digital banking institution in Singapore is seeking an IT Infrastructure Support Specialist to manage and optimize their IT systems. Responsibilities include ensuring high availability, managing budgets, and tracking IT assets. Candidates should possess a Bachelor's degree in Computer Science or related field, with at least 5 years of experience, hands-on experience with Kubernetes, and a solid understanding of server technologies. The role demands excellent communication and troubleshooting skills.

Qualifications

• Minimum of 5 years experience in an IT infrastructure support role.
• Hands-on experience with containers and Kubernetes operations.
• Technical certifications in cloud and system technologies are advantageous.

Responsibilities

• Gather business/application requirements and suggest design improvements.
• Monitor system and network performance for high availability.
• Manage and track IT assets throughout their lifecycle.

Skills

Kubernetes operations

Troubleshooting skills

Scripting (PowerShell, Bash, Python)

Cloud platforms (AWS, Azure)

Server technologies (Windows Server, Linux)

Networking (TCP/IP, DNS, DHCP)

Education

Bachelor’s degree in Computer Science, IT, or related

Tools

VMware

Hyper-V

Job description

About Us

Green Link Digital Bank is Singapore's inaugural wholesale digital bank focusing on supply chain finance, mainly serving MSMEs and aiming to help MSMEs grow and improve digitization.

Responsibilities

• Gather business and/or application requirements on the infrastructure, conduct impact analysis, suggest design/re-design to integrate the change into the existing environment.
• Manage systems changes through established change request process & provide status reports to the relevant parties.
• Respond promptly to incident, investigate & provide temporary &/or permanent resolution of incidents escalated. Provide timely status updates to relevant parties.
• Conduct root cause analysis & implement pro-active measures. Monitor effectiveness of implemented measures.
• Monitor & measure the performance & availability of systems proactively; implement corrective actions identified to improve performance & availability.
• Monitor the agreed service level (e.g., service request, system availability), document & maintain the configuration of the systems; provide regular reporting to relevant parties.
• Execute service continuity measures, e.g., backup/restore procedures & disaster recovery plan dry run to ensure continuous operation of the business.
• Manage budget, resources, and schedule for system implementation/operation activities; ensure deliverables meet client requirements and quality standards.
• Established facility management standards/best practices to ensure operation consistency across project/facility management teams.
• Ensure the management of systems adhere to ITIL best practices/ITSM and methodologies (e.g., change management, release management, incident management, problem management, configuration management).
• Actively monitor system and network performance, ensuring high availability and reliability of infrastructure components.
• Manage and track IT assets throughout their lifecycle, ensuring accurate documentation and compliance with organizational policies.
• Coordinate and execute patch management processes for systems and applications to safeguard the IT environment against vulnerabilities.
• Collaborate with cross-functional teams to ensure infrastructure changes are planned, tested, and documented according to established change management protocols.
• Generate and analyse performance metrics and reports, proactively identifying areas for improvement and optimisation.
• Develop and maintain system monitoring solutions to alert the team of potential issues before they impact operations.
• Provide technical guidance to team members while fostering a collaborative and knowledge-sharing environment.
• Stay abreast of industry trends and emerging technologies to recommend enhancements to our IT infrastructure.

Requirements

• Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent experience).
• Minimum of 5 years of experience in an IT infrastructure support role.
• Hands-on experience with containers and Kubernetes operations (deploy/upgrade, networking, storage, security, backup/DR).
• Strong knowledge of server technologies (Windows Server, Linux), networking (TCP/IP, DNS, DHCP), and virtualisation (VMware, Hyper‑V).
• Experience with cloud platforms (AWS, Azure) is a plus.
• Technical certifications in cloud and system technologies (e.g., CCNA, Microsoft Azure Administrator Associate, VCP, VMCE, CEH) are advantageous.
• Proficient in scripting and automation tools (PowerShell, Bash, Python).
• Familiarity with ITIL processes and best practices in IT service management.
• Excellent troubleshooting skills with a problem‑solving mindset.
• Strong communication and interpersonal skills, with the ability to work collaboratively.
• Motivated team player with attention to detail, capable of working independently as well.

By submitting your application, you have given your consent for us to collect, use and retain your data for a year as according to our prevailing data retention and PDPA policies. Should you have any enquiries on our data policy, please contact us at [e-mail].