Security jobs in Singapore

Temus was established by Temasek in partnership with UST, to provide digital transformation solutions the private and public sectors as we aspire to be a strategic partner in realising the Singapore Government’s Smart Nation vision. We are headquartered in Singapore and have more than 400 employees across a wide range of disciplines in strategy, design, architecture, technology, data & AI.

The Infrastructure Engineer (Systems) plays a key role in architecting, deploying, and operating mission‑critical systems within a highly secured and regulated environment. As a subject‑matter expert in infrastructure technologies, the individual will design and deliver end‑to‑end secure infrastructure solutions with a focus on reliability, compliance, and resilience. The role requires a deep technical foundation across hardware, operating systems, virtualization, monitoring, backup, and log management systems, coupled with the ability to work independently under strict security and regulatory requirements.

• Design and implement on‑premise compute, storage, and network architectures supporting secure enterprise systems.
• Lead system integration to ensure efficient, robust, and compliant infrastructure design that meets stringent availability and reliability objectives.
• Provide technical expertise in systems architecture, evaluation, and deployment of infrastructure components including messaging, collaboration, virtualization, security, and remote access technologies.
• Lead technology evaluations and proof‑of‑concepts to assess new systems or tools for use in secured environments.
• Define standards for Red Hat, Windows Server, VMware, and Kubernetes deployments.
• Deploy and operate Kubernetes clusters (RKE2, OpenShift, or equivalent).
• Configure and manage SAN storage, including LUN provisioning, multipathing, and storage zoning.
• Implement and maintain Veritas backup, replication, and disaster recovery strategies.
• Conduct system migration, upgrades, and patch automation with minimal disruption.
• Develop and maintain Ansible playbooks for provisioning, configuration, and compliance enforcement.
• Apply policy‑as‑code frameworks (OPA, Kyverno, or Ansible Lint) to enforce configuration and security standards.
• Automate VMware, Kubernetes, and backup operations through integrated CI/CD pipelines.
• Implement CIS benchmarks and hardening standards for servers, clusters, and hypervisors.
• Configure, administer, and support SIEM platforms such as HP ArcSight, LogRhythm, or Splunk; ensure accurate capture and analysis of system and security event logs.

• Diploma or Degree in Computer Science, Computer/Electronics Engineering, Information Technology, or a related discipline.
• Minimum 5 years of experience designing, deploying, and managing complex, secured IT infrastructure systems.
• Proven experience managing enterprise monitoring tools (e.g., Microsoft SCOM, CA, Riverbed), including capacity tuning and threshold optimization.
• Strong, hands‑on foundation in data centre systems, server virtualization, hyperconverged infrastructure, system monitoring, backup, and SIEM solutions.
• Expertise in Windows and Linux server installation, configuration, and administration, including patching, security configuration, and performance tuning.
• Skilled in scripting and automation using PowerShell, Shell, or Bash for system deployment and configuration.
• Demonstrated experience in high‑availability (HA) and clustered environments, including virtualization and hyperconverged setups (e.g., VMware vSphere, Nutanix Infrastructure).
• Experience managing enterprise backup solutions such as Veritas NetBackup, Commvault, or Networker, including troubleshooting backup/recovery disruptions.
• Familiar with policy‑as‑code, compliance automation, and disaster recovery architecture in regulated environments.
• Familiar with container technologies such as Docker and Kubernetes for secure application hosting, deployment, and testing.
• Certified in Kubernetes (CKA/CKAD), Nutanix (NCP), or equivalent virtualization technologies.
• Additional certifications such as RHCE, VCP, Veritas Certified Specialist, or Microsoft Server Administrator are advantageous.

Temus is an equal opportunities employer. We welcome applications from all. We do not discriminate by race, religion, belief, ethnicity, origin, disability, age, partnership status, sexual orientation, or gender identity.

We see the diversity of our team as a strategic advantage, and we work actively to maintain it.