Denys Tokmakov Email & Phone Number

Contributing as a member of an agile team within a leading provider of software solutions for the construction industry in North Europe. Proficient in testing web, mobile, and backend solutions with a focus on backend projects.1. Facilitated cross-communication with 4 teams, enhancing team collaboration, which resulted in a 15% reduction in miscommunication-related errors2. Maintained existing C# SpecFlow API auto-tests, improving the coverage by 30%, which led to a 20% decrease in post-release defects3. Prepared POC for UI automated tests for Angular app.4. Resolved over 100+ support cases with the Customer Success team, leading to a 30% decrease in response time for support tickets and a 25% improvement in customer loyalty and retention5. Established 60+ performance/stress testing sessions for .NET microservices, which identified critical bottlenecks and system instabilities under high load conditions6. Guided more than 20 demos for customers, resulting in a 30% increase in customer satisfaction scores and a 25% rise in product adoption rates7. Conducted Jira workflows for 6 projects, encompassing automation, tickets transition, and state validation, which resulted in a significant increase in workflow transparency, team productivity, and a 20% faster ticket processing rate

Kharkiv, Ukraine

Contributing as a member of an agile team within a leading provider of software solutions for the construction industry in North Europe. Proficient in testing web, mobile, and backend solutions with a focus on backend projects.1. Facilitated cross-communication with 4 teams, enhancing team collaboration, which resulted in a 15% reduction in miscommunication-related errors2. Maintained existing C# SpecFlow API auto-tests, improving the coverage by 30%, which led to a 20% decrease in post-release defects3. Established over 60 performance/stress testing sessions for .NET microservices, which identified critical bottlenecks and system instabilities under high load conditions

Kharkiv, Ukraine

Engaged as a mobile testing engineer, organized comprehensive testing procedures on a diverse range of applications, including taxi booking, email client, stock market, and English learning platforms.1. Improved acceptance, functional and regression testing procedures, resulting in a 25% reduction in post-release defects2. Extended auto-tests coverage for Android applications using Robotium framework, enhancing test coverage by 15%3. Designed and managed server-side API performance tests, resulting in the identification of 4 weak points within the application. Implemented optimizations that led to a 15% improvement in app performance and stability4. Developed comprehensive test documentation including 3 test plans and 100 test cases, ensuring thorough test coverage for all application features

Kharkiv, Ukraine

Supervised testing activities on 5 simultaneous projects including medical, online stores, stock market and gaming.1. Executed integration testing with Flurry Analytics SDK, leading to a 20% improvement in identifying user flows and navigation patterns2. Discovered, analyzed, and reported inconsistencies in the product detection algorithm, resulting in a 50% improvement in the accuracy of tagging products3. Created 10+ comprehensive bug reports per week, contributing to the swift resolution of software issues and elevating the overall product quality4. Collaborated closely with the development team, contributing 30% faster bug resolution through clear and comprehensive bug reports