OKSANA LEVCHENKO

• Update K8s Version on Digital Ocean from 1.26 to 1.29 Data Base Challenge

• Set up monitoring system Grafana, Prometheus and set up Alerting System

• Revamp CI/CD Pipeline on Circle CI.

• Developed a Python script that automates the whitelisting process.

• Optimizing reduction of Amazon AWS services (EC2, ELB, IAM, S3, Cloud Watch, Redshift, Autoscaling, Cloud Formation) through Autoscaling
• Use Ansible to manage Web applications, environments configuration Files, Users, Mount Points, and Packages
• Enable Auditing for Kubernetes Cluster & Monitoring the logs locally, depends on the namespaces required through metadata level
• Configuring and maintaining Jenkins to implementing the CI process and integrate the tool with Maven to schedule the builds
• Creating & maintaining user accounts, roles on MySQL, production and staging servers
• Use GitHub for source code version control and integrated with Jenkins for CI/CD pipeline, code quality tracking and user management with build tools Maven.

• Led the implementation of secure CI/CD best practices and policies, resulting in a 50% reduction in security-related incidents
• Deployed an EKS K8 Cluster with Self managed Worker nodes on AWS using Terraform
• Set up CloudWatch alarms for RDS databases to monitor CPU usage by using Terraform
• Deployed and managed containers using Docker and Kubernetes, improving scalability and resource utilization
• Collaborated with teams to design, deploy and automate infrastructure using tools such as Terraform and Ansible
• Set up External DNS to add DNS records on AWS Route53.

• Implemented AWS CloudWatch for monitoring, logging, and alerting, to provide visibility into the performance and health of applications
• Created highly available system of EC2 instances using Autoscaling Group
• Worked with AWS IAM (Identity Access Management) in order to create new users, roles, groups and permission sets
• Deployed EKS cluster on AWS and provisioned Amazon Elastic Container Service for Kubernetes (EKS) cluster, including worker nodes, VPCs, security groups, and appropriate IAM policies by utilizing CloudFormation templates
• Set up VPC subnets, Security Groups, NACL, Route Tables, Internet Gateway and a bastion host.