Senior Staff Azure Cloud Infrastructure Engineer

At Toku, we create bespoke cloud communications and customer engagement solutions to reimagine customer experiences for enterprises. We provide an end-to-end approach to help businesses overcome the complexity of digital transformation and deliver mission-critical CX through cloud communication solutions. Toku combines local strategic consulting expertise, bespoke technology, regional in-country infrastructure, connectivity, and global reach to serve the diverse needs of enterprises operating at scale. Headquartered in Singapore, Toku supports customers across APAC and beyond, with a growing footprint across global markets. We are looking for a highly experienced, hands-on Cloud Infrastructure Engineer to take on the most senior individual-contributor role within our Infrastructure team. Working alongside the VP of Infrastructure, you will help set technical direction, architecture and engineering standards while remaining deeply involved in solving complex technical challenges. This is a cloud-agnostic role with a strong current emphasis on Microsoft Azure. You will play a leading role in establishing and maturing our Azure platform while also working across our existing AWS environment. You will drive modern cloud architecture, Infrastructure as Code, Kubernetes, observability, CI/CD and automation, combining strong architectural judgement with hands-on engineering capability. What you will be doing Azure cloud architecture: Lead the design and evolution of secure, scalable and highly available Azure infrastructure, including Landing Zone architecture, governance, networking, identity, security guardrails and reusable infrastructure patterns. Multi-cloud architecture: Apply strong cloud architecture principles across Azure and AWS, establishing appropriate standards for scalability, resilience, security and operational effectiveness. AWS platform architecture: Continue to evolve our AWS estate across multi-account / AWS Organizations architecture, networking, IAM, security guardrails and core production services. Technical direction: Act as a senior technical authority for Infrastructure, owning key architectural decisions, establishing engineering standards and identifying opportunities to improve existing approaches. Infrastructure as Code: Own and improve Terraform-based infrastructure provisioning, developing reusable modules, consistent multi-environment patterns, testing and policy controls for reliable, repeatable deployment. Kubernetes: Architect, operate and improve production Kubernetes environments across Azure Kubernetes Service (AKS) and Amazon EKS, ensuring they are scalable, resilient, secure and operationally robust. CI/CD & GitOps: Design and improve infrastructure delivery pipelines using technologies such as GitHub Actions and Jenkins, integrating IaC, version control, automated testing, policy enforcement and deployment automation. Observability: Build and improve monitoring and observability…