Alexandr Semco

Experience

• 

  DevelopmentAid

  Mar 2011 - Aug 2017

  • Led the QA team in establishing and maintaining a robust testing framework for the company's flagship PHP/Laravel-based product, achieving a 20% reduction in post-release defects.• Designed and executed end-to-end test scenarios, focusing on microservices integration, performance, and security, resulting in a 15% improvement in application performance and a 99.9% uptime.• Conducted root cause analysis of critical defects, collaborating with developers to implement effective solutions, reducing average defect resolution time by 30%.• Mentored and trained junior QA engineers in best practices for testing microservices-based applications, improving overall team efficiency and productivity by 20%. Show less

  • Senior Quality Assurance Engineer

    May 2015 - Aug 2017

  • Quality Assurance Engineer

    Sept 2013 - May 2015

  • Quality Assurance Specialist

    Mar 2011 - Aug 2013
• 

  Zipline Interactive

  Feb 2018 - Oct 2022

  Web Developer

  • Developed and maintained custom Laravel and WordPress websites, achieving a 98% client satisfaction rating for website functionality and user experience.• Created custom themes and plugins for WordPress, increasing website traffic by an average of 15% for clients through improved SEO and user engagement.• Implemented responsive design principles to ensure website compatibility across various devices and screen sizes, resulting in a 20% increase in mobile traffic for client websites.• Collaborated with designers to integrate visually appealing layouts and interactive elements, enhancing user engagement and reducing bounce rates by 10%. Show less

• 

  Granular Concept

  Oct 2022 - now

  Senior Quality Assurance Engineer

  • Led the development and execution of comprehensive test plans for the company's flagship SaaS product, resulting in a 15% decrease in critical defects and a 10% improvement in customer satisfaction ratings.• Explored test automation opportunities using Selenium WebDriver, contributing to early-stage automation efforts.• Leveraged Git, GitHub, and Bitbucket for efficient version control and collaboration with development teams, contributing to a 20% increase in code review efficiency.• Utilized Docker and Docker Hub to create and manage consistent testing environments, reducing environment setup time by 50%.• Documented test cases, results, and findings in Confluence, establishing a knowledge base that improved team collaboration and reduced onboarding time for new team members.• Worked extensively with Linux and macOS command-line interfaces (including Bash) to manage test servers and execute scripts, automating repetitive tasks and improving productivity by 25%.• Managed and maintained test environments running on Ubuntu and Debian servers, achieving 99.9% uptime and ensuring uninterrupted testing processes.• Conducted API testing using Postman to validate REST API endpoints and ensure data integrity, resulting in a 5% reduction in API-related errors.• Used Wireshark for network traffic analysis to identify and diagnose performance bottlenecks and security issues, contributing to a 10% improvement in application performance.• Developed and maintained Bash and Python scripts for various testing tasks, streamlining processes and improving efficiency by 15%. Show less