Sergei Litovchenko

• Deployed services into cloud-based Kubernetes environments AWS, GCP to configure and manage resources using Helm charts.
• Contributed to migration of 200+ containers from DockerHub to Google Artifact Registry
• Contributed to implementing ArgoCD utilizing "Application for application" strategy.
• Drove consistency by developing adaptable Terraform modules, promoting efficiency across diverse projects
• Maintained CI/CD pipelines for automated software delivery across multiple environments
• Provided 24/7 on-call support for critical systems, ensuring high availability and rapid issue resolution.
• Monitored automated build and continuous software integration process to drive build/release failure resolution.

• Utilized Terraform and suite of AWS tools to deploy Stage/QA environments efficiently which

reduced deployment time and enhanced scalability

• Contributed to develop fully automated performance tests infrastructure based on AWS cloud data centers in 4 regions (US, Europe, India, Japan) using Terraform and AWS
• Enhanced end-to-end CI/CD release pipelines on CircleCI, enabling functional and load tests including testing microservices
• Built databases and table structures for BigQuery/ Data Studio reporting visualization for mobile and performance test

• Contributed to cloud CI/CD solutions as shift-left testing approach for mobile SDK test automation pipelines for testing VPN SDKs for iOS, Android, and Windows
• Developed and maintained REST API testing and as part of CI/CD pipeline (Docker / Jenkins Server / JavaScript)
• Developed test automation for microservices of VPN node used (Python/ GRPC / Docker-compose/ Redis/ MySQL)
• Led global team of manual and automation test engineers (6 peers) and provided regular KPI metrics for stakeholders, collaborated with worldwide distributed team
• Ensured application compatibility across multiple platforms and browsers by conducting thorough cross-browser testing.

• Designed and executed test cases, test scenarios, and test plans from scratch for automation tests for mobile SDK of VPN clients (iOS, Android) and Desktop (Win)
• Implemented Selenium WebDriver and Pytest automation framework (Python) and reduced regression testing time on 20% for Web applications
• Implemented test automation for REST API backend tests (Postman)