Senior DevOps Engineer

About Hytech Hytech is a leading management consulting firm headquartered in Australia and Singapore, specialising in digital transformation for fintech and financial services organisations. We deliver end-to-end consulting services and provide robust middle- and back-office solutions that enable our clients to optimise operations, enhance efficiency, and stay ahead in a fast-evolving digital landscape. Our client portfolio includes top global trading platforms and leading crypto exchanges. With more than 2,000 professionals worldwide, Hytech has a strong and growing international presence, with offices across Australia, Singapore, Malaysia, Taiwan, the Philippines, Thailand, Morocco, Cyprus, Dubai, and beyond. ​‍⁠‍⁠​​​⁠‍‍‌ We are looking for a Senior DevOps Engineer with strong hands-on experience in Kubernetes, AWS, CI/CD, automation, monitoring, and production system reliability . You will join a collaborative DevOps team of 9+ engineers across multiple countries , supporting and improving global distributed production systems . The role provides exposure to complex infrastructure challenges, including high availability, scalability, security, cost optimization, disaster recovery, and cross-region operations. You will also have the opportunity to work on AWS-recognized cloud and infrastructure projects , applying modern cloud-native practices across Kubernetes, infrastructure-as-code, observability, and automation. We are looking for someone who is smart, hands-on, proactive, and structured in problem-solving — someone who can not only operate systems, but also improve them for long-term stability, scalability, and engineering efficiency. Key Responsibilities Infrastructure & Kubernetes Design, build, operate, and improve Kubernetes-based infrastructure. Manage Kubernetes clusters, workloads, networking, storage, ingress, service discovery, and autoscaling. Improve deployment reliability, cluster stability, resource utilization, and operational visibility. Support containerized application deployment across different environments. Troubleshoot Kubernetes issues related to pods, nodes, networking, DNS, storage, and performance. Cloud & System Operations Manage cloud infrastructure on platforms such as AWS, Azure, GCP, or similar. Maintain and improve Linux-based production environments. Support high-availability, low-latency, and business-critical systems. Perform capacity planning, cost optimization, disaster recovery planning, and infrastructure scaling. Ensure infrastructure is secure, observable, resilient, and easy to operate. CI/CD & Automation Build and maintain CI/CD pipelines for application and infrastructure deployment. Automate repetitive operational tasks using scripts, tools, and infrastructure-as-code. Improve deployment speed, rollback capability, release safety, and developer productivity. Work with tools such as GitLab CI, GitHub Actions, Jenkins, Argo CD, Helm, Terraform, Ansible, or similar. Monitoring, Reliability & Incident Response Build and improve monitoring, logging, alerting, and observability platforms. Work with tools such as Prometheus, Grafana, Loki, ELK, CloudWatch, Datadog, or similar. Participate in incident response, root cause analysis, and post-incident improvement. Identify system bottlenecks and propose long-term solutions instead of short-term fixes. Improve system reliability, availability, and operational readiness. Collaboration & Engineering Support Work closely with developers, QA, security, system administrators, and business teams. Help development teams improve application deployment, configuration, performance, and reliability. Provide technical guidance on infrastructure design and operational best practices. Document architecture, operational procedures, runbooks, and troubleshooting guides. Requirements Must Have Strong hands-on experience with Kubernetes in production environments . Solid understanding of containers, Docker, Helm, ingress controllers, service mesh, and Kubernetes networking. Strong Linux system administration skills. Experience with CI/CD pipeline design and automation. Experience with cloud infrastructure such as AWS, Azure, GCP, or private cloud. Experience with Infrastructure as Code, such as Terraform, CloudFormation, Ansible, or similar. Good scripting ability using Bash, Python, Go, or similar. Strong troubleshooting skills across application, infrastructure, network, and system layers. Good understanding of monitoring, logging, alerting, and incident response. Able to work independently and handle production issues under pressure. Preferred Qualifications Experience supporting financial, trading, payment, SaaS, or other high-availability systems. Experience with AWS EKS, MSK/Kafka, RDS, Redis, S3, CloudFront, Route 53, WAF, or similar services. Experience with GitOps tools such as Argo CD or Flux. Experience with service mesh such as Istio, Linkerd, or Consul. Experience with security hardening, secrets management, IAM, network security, and compliance. Experience with multi-region, hybrid cloud, or disaster recovery architecture. Experience optimizing infrastructure cost and resource usage. Experience supporting low-latency or high-throughput systems. What We Are Looking For We are looking for someone who is: Smart and logical : able to break down complex problems clearly. Hands-on : not only understands concepts, but can execute and fix real production issues. Proactive : able to identify problems before they become incidents. Reliable under pressure : calm and structured during production issues. Automation-minded : prefers repeatable systems over manual operations. Security-conscious : understands the importance of access control, secrets, auditability, and system hardening. Business-aware : understands that infrastructure decisions affect system stability, cost, delivery speed, and user experience. A strong communicator : able to explain technical issues clearly to both technical and non-technical stakeholders. Nice-to-Have Technical Stack Kubernetes / EKS / AKS / GKE Docker / Helm / Kustomize Terraform / Ansible GitLab CI / GitHub Actions / Jenkins / Argo CD AWS / Azure / GCP Prometheus / Grafana / Loki / ELK / CloudWatch Kafka / Redis / PostgreSQL / MySQL Nginx / Ingress Controller / Istio Linux / Bash / Python / Go Vault / Secrets Manager / IAM / WAF ​⁠​‬​​‬‌​​​​​‌