Aleksei Rybalkin

Cybus develops industrial IoT and data-integration software connecting shop-floor systems with enterprise applications.

Led QA and test automation for a distributed industrial IoT and data-integration platform connecting shop-floor systems with enterprise applications.

Designed and maintained automated API and UI tests using Playwright, TypeScript, and Python, covering REST APIs, authentication, resource management, integrations, permissions, and end-to-end workflows.

Tested distributed services, data pipelines, messaging infrastructure, containerized applications, and integrations across Kubernetes, OpenShift, Docker, and Docker Compose environments.

Performed functional, integration, regression, endurance, resilience, load, chaos, and exploratory testing across complex distributed systems.

Used Chaos Mesh and Toxiproxy for network fault injection, latency, packet loss, and partition scenarios to validate system resilience and failure handling.

Automated infrastructure provisioning and environment setup with Ansible and managed deployments using Kubernetes and Helm.

Tested integrations with industrial protocols, messaging systems, databases, HTTP/REST APIs, and external enterprise systems using simulators, emulators, and dedicated test environments.

Investigated and resolved 40+ defects across backend services, integrations, distributed components, and web applications, using AI-assisted analysis with Claude to accelerate debugging, test design, and root-cause investigation.

Collaborated with developers and product teams on sprint planning, technical refinement, quality strategy, release testing, and continuous improvement.

The Rhenus Group provides logistics services around the globe and has annual turnover amounting to EUR 5.4 billion. Rhenus employs more than 33,500 people at more than 820 locations worldwide.

I planned and executed QA activities for sprint cycles and long-term initiatives, balancing 50% manual and 50% automated testing. This approach contributed to a 30% reduction in production defects, utilizing tools like Jira, Confluence, and Miro within an Agile environment.

I introduced and implemented Qase.io as a test management platform, improving orchestration and tracking of QA activities.

I designed and implemented integration testing for Spring Boot services integrated with legacy systems and Camunda BPM.

I developed a comprehensive test automation strategy from scratch for API testing using Java 17, REST-assured, and Spring Boot testing frameworks, and end-to-end UI testing using Selenide and Testcontainers.

I reduced manual testing effort by 66% through automation of API, UI, and integration test scenarios.

I tested cloud-based services, databases, APIs, and business workflows using Google Cloud, MySQL, Postman, DBeaver, and browser DevTools.

First Line Software is a software engineering and digital transformation company.

Developed and maintained automated test suites using Java 8, TestNG, REST-assured, and Jenkins.

Executed end-to-end testing across UI and API layers, improving system reliability and reducing production issues.

Automated UI testing using the JDI framework and API testing using REST-assured.

Optimized automated test data generation, reducing preparation time by 50%.

Performed regression and manual testing of web applications using Dicom, Postman, Swagger, DBeaver, and Google Cloud environments.

SimbirSoft is a software development company providing software solutions for companies across multiple industries and regions.

Implemented test automation strategies using Java 11, Jenkins, and TeamCity, integrating automated testing into CI/CD processes.

Participated in the transition from monolithic architecture to microservices in the fintech domain, implementing quality gates and applying TDD practices.

Automated UI testing using Selenium, Selenide, Selenoid, Cucumber, and TestNG, reducing manual testing effort by 50%.

Conducted API and performance testing using REST-assured, JMeter, Postman, SoapUI, and JUnit.

Performed manual functional, regression, and integration testing using Fiddler, DBeaver, DevTools, and Swagger.

The employer company was providing outstaff services for Yandex projects focused on testing software products.

Executed regression testing of web and mobile applications using predefined test cases.

Performed exploratory testing of new features and identified functional and usability issues.

Prepared test reports summarizing findings and actionable recommendations for stakeholders.

Land Group Russia specialises in the design, construction, and equipment of food industry facilities, supermarkets, and stores.

Collaborated with stakeholders to define technical requirements, system performance criteria, and regulatory requirements.

Conducted thermal and hydraulic analysis of refrigeration systems and optimized system performance.

Designed and implemented customized refrigeration solutions for more than 100 supermarkets and 10 hypermarkets.

Integrated microcontrollers for automated control and real-time monitoring.