Andrey Koltsov Email & Phone Number

Berlin, Germany

- Leading test automation initiatives including strategy, planning, execution, and mentoring.- Ownership of TeamCity Docker Images: development, support. - Designing and developing test automation infrastructure for new products from scratch.- Developed tools and infrastructure from scratch for automation and productivity purposes: frameworks, automation APIs, REST and deployment clients, CI/CD pipelines and infrastructure.- Extended CI/CD for the product's quality gates by introducing new pipelines, optimizing existing ones, and ensuring stability.- Proactively increased test coverage of the system by collaborating with multiple teams and implementing an automation strategy.Core technologies: Kotlin, Java, Docker, Clouds (AWS, GKE, Azure), CI/CD, Selenide / TestNG / Allure

- Designed and implemented automation that evaluates performance of distributed streaming storage system - Pravega (Python, Jenkins, Groovy, Kubernetes, Helm, Docker, Prometheus, Grafana).- Developed internal web service for convenient monitoring of performance across multiple builds of distributed system (Angular, Java, Spring, PostgreSQL).- Qualified performance of Streaming Storage and conducted a related analysis in context of Kubernetes, OpenShift and PKS environments. It includes the set up of the cluster, therefore installation and finessing the configurations (Storage Classes, MetalLB, etc.).- Analysed transactional performance of Pravega streaming storage. As a result of consistent collaboration with development team, transactional performance had been increased up to 95% based on latency.Keywords (technologies):Java, Python, Groovy, Kubernetes, TypeScript, OpenShift, Jenkins, Docker, Lucene, Search Systems, Automation, Development

- Designed & Developed web interface for controlling and monitoring of Storage Performance Testing tool - Mongoose (Darzee).- Integrated the interface with Prometheus, create a reverse-proxy server that provides serving of web UI and re-direction of requests to Prometheus in order to solve periodic issues with timeouts of preflight requests;- Wrapped the solution into Docker container, created related manifests for deployment onto Kubernetes (Deployment, Services, PVC).Technologies used: - Development: Angular 2, RxJs, NodeJS, Gradle, Java;- Deployment: Docker, Kubernetes;- Infrastructure: Prometheus;- CI / CD: GitLab CI;

- Front-end development (Angular 7, gradle, Docker, Nginx, GitLab CI)- Python development (Django, MongoDB, docker); - Android development (Java 8);