Ahmer M

DevOps Engineer

Freelancing Career • Freiberufler

Feb 2019 - Present • 7 yrs 7 mos

Manage and maintain Linux servers and production-grade Kubernetes clusters for enterprise applications, ensuring 99.9% uptime and seamless service delivery with minimal disruption. Design, deploy, and manage cloud-based infrastructure on AWS (EKS), Azure (AKS), or Google Cloud (GKE), ensuring high availability, multi-zone scalability, and cost optimization. Implement and enforce robust security policies, configure Kubernetes Role-Based Access Control (RBAC), conduct regular vulnerability assessments, and apply security patches to safeguard clusters and data. Develop and deploy automation scripts using Ansible, Terraform, Bash, and Python to streamline operational tasks, reducing cluster and server provisioning time by 30%. Architect, deploy, monitor, and manage containerized workloads using Docker and Kubernetes; author complex manifests for Deployments, StatefulSets, and DaemonSets to enhance resource efficiency and fault tolerance. Optimize cluster performance, resolve persistent storage challenges (PVC/PV), and proactively troubleshoot complex networking issues like Ingress routing, CoreDNS failures, and CNI plugins. Implement secure CI/CD pipelines using Jenkins, GitLab CI/CD, or GitHub Actions to automate containerized software deployment and GitOps-driven infrastructure provisioning. Monitor system performance and cluster health using tools like Prometheus, Grafana, ELK Stack, or CloudWatch, setting up proactive alerting for node and pod anomalies. Collaborate with development, security, and operations teams to establish best practices for DevOps workflows, Infrastructure as Code (IaC), and Kubernetes cluster governance. Stay updated with emerging cloud-native technologies, CNCF trends, and automation tools to enhance infrastructure resilience, container security, and operational efficiency.