Serhii Kushnir Email and Phone Number

- Decreasing customer downtime by 95% by migrating infrastructure from AWS EC2 instances to AWS EKS cluster with autoscaling using HPA, Karpenter, and Istio for SaaS applications.- Implementing Infrastructure as Code (IaC) practices, designed the Terragrunt repository structure, and achieved tag-based versioning for Terraform modules for SaaS compute infrastructure, resulting in a 20% reduction in deployment errors and a 10% reduction in deployment time.- Reduce application deployment time by 80%, resulting in more efficient workflows by developing CI/CD pipelines in Gitlab CI, using docker executor with Kaniko, and setting up caching for docker services images build.- Extending team by mentoring Junior DevOps specialists. Forging collaboration between the Dev and Ops teams, and increased collaboration efficiency by 15%.

- Ensured functionality and performance of hardware servers by implementing RAID arrays, this enhanced the server's fail tolerance by over 50%.- Configured networking equipment, including Cisco and Mikrotik systems, to establish robust and secure network environments, including firewall configuration, with over 100 devices, to fulfill the requirements of the client.- Supervised Proxmox administration tasks, guaranteed the smooth operation of the virtualization infrastructure, and examined issues, fulfilled uptime of 99%.- Implemented the Acronis true image tool, allowing the company to image new operating systems on office computers in 45 minutes, a 45% reduction.