Senior DevOps Engineer

About the role

Singtel is looking for an experienced DevOps Engineer for its Enterprise Platforms Engineering team. The role designs, builds and delivers software development infrastructure for Singtel's internal tools and platform development, partnering with other teams to guide them toward automated codebase deployment that meets business needs and aligns with Singtel's IT and Security strategy. It also helps set technology standards, evolution and governance for cloud.

Key responsibilities

• Design, build, deploy and operate highly available platform environments across on-premises, private cloud and public cloud, supporting delivery from infrastructure readiness to production handover.
• Deploy, administer, upgrade and troubleshoot Kubernetes clusters, Linux systems, virtualization, networking, storage, load balancers and platform services.
• Automate infrastructure and application deployment with Terraform, Ansible, scripting, CI/CD and GitOps/ArgoCD.
• Monitor production, handle incidents, run structured troubleshooting and root cause analysis, and maintain HA, backup, restore and DR capabilities.
• Perform vulnerability remediation, patching, security hardening, certificate and secrets management, and access-control reviews with security teams.
• Manage OS, Kubernetes and platform upgrades, patching, certificates and end-of-life remediation.
• Produce SOPs, runbooks, architecture and deployment documentation, RCA reports and handover materials, and mentor engineers and set engineering standards.

Required profile

• Bachelor's degree in a technical discipline or equivalent professional experience.
• Minimum 8+ years of relevant IT experience, with strong hands-on DevOps, Platform Engineering, SRE or Infrastructure Engineering experience.
• Ability to work independently, take initiative and build trusting relationships across teams.
• Experience with production operations, incident troubleshooting, RCA and service recovery.

Required skills

• Linux/Ubuntu and Kubernetes administration and troubleshooting.
• Networking troubleshooting (TCP/IP, DNS, VLAN, NAT, firewall, VPN, load balancing, TLS).
• IaC, configuration automation, CI/CD and GitOps with Terraform, Ansible, Jenkins and ArgoCD or equivalent.
• Scripting and automation in Python or Bash, and Git fundamentals.
• Security hardening, vulnerability remediation, secrets and certificate management.
• On-premises virtualization, distributed storage, public cloud (AWS/Azure/GCP) and bare-metal provisioning; familiarity with API gateways, databases, Vault, Kafka and service mesh is an advantage.