Hello! I am Andrii Lytvynenko

• Delivered and maintained cloud infrastructure using Terraform in multiple dev environments, pre-prod, and prod environments with automatic scaling and serverless services, featuring multi-AZ deployments and multi-region S3 and RDS replications (active-passive) using AWS services (ECS, MWAA, and Lambda).
• Implemented monitoring using Dynatrace, Datadog, and CloudWatch, including investigation of Lambda errors and resource utilization.
• Developed CI/CD pipelines with Jules (a custom Jenkins) and Spinnaker integrated with Terraform Enterprise, covering build, test, and deploy stages involving Java (Vanilla Java, Spring Boot) and Docker.
• Contributed to cloud architecture planning and continuous improvement of platform design.

• Led urgent and time-limited Terraform Enterprise migration from Terragrunt, completing it in 30% of the planned time (1 month instead of 3 months) with half the team size (3-5 instead of 10 engineers); provided daily reports to stakeholders on development status, performance tracking, and management via team calls, Jira comments, and Confluence pages.
• Led network architecture redesign to eliminate Nginx network bottlenecks, applying high availability and reliability principles using AWS services (ALB, NLB, EC2, Route53, EKS, CloudFront, VPC, EventBridge), reworking legacy code, reducing incident frequency by 70%, and enabling the handling of high traffic peaks with hundreds of thousands of requests per second.
• Led documentation initiatives to improve transparency for clients and newly onboarded staff, creating complete infrastructure and testing documentation and knowledge-sharing procedures, resulting in improved team efficiency and engagement.
• Led urgent production Kubernetes cluster restoration during weekends following an incident, restoring from automated backups, implementing countermeasures, and documenting the event.

AWS/Azure Cloud engineering, Delivering continuous integration and deployment using GitOps and Cloud platforms. Automating processes with Jenkins, Terraform, Ansible, and Docker containerization. Operating different distributions like CentOS and Ubuntu administering and writing bash scripts for maki…

• Developed full-stack web applications using PHP and the Laravel framework for freelance clients.
• Built responsive frontend interfaces with HTML, CSS, JavaScript, and jQuery for static and dynamic websites.
• Designed and implemented database schemas with MySQL and SQLite for data persistence and retrieval.
• Configured and deployed web servers (Apache, Nginx) for hosting and serving web applications.

• Designed and implemented local network infrastructure for schools using switches, hubs, and routers for the Settlement Council.
• Configured firewall rules (IPTables) to restrict access from external networks while enabling controlled public data availability.
• Administered Linux systems and managed DNS configuration for network environments.
• Utilized virtualization technologies for efficient resource management and isolated service deployment.