Leo L.

About Leo L.

Software Engineer with 6+ years of experience in startups, adept at wearing multiple…

Experience

1. Performance Qa Engineer

   Eclipse Data Innovations

   May 2021 — Present · US

   Designed and developed a Python‐based automation framework for REST API query language using Pyarrow and Pytest, reducing regression cycle by 90 %. Integrated with Bamboo CI for continuous testing. • Collaborated with developers, developed an automated debugging tool using Python and WinDbg with 24/7 accessibility that processes callstacks, converts dumps into readable reports, saving 3+ hours of debugging time weekly for a team of 20 developers.• Designed and implemented a Selenium WebDriver framework with TestNG reducing the web testing regression cycle from 3 to 1 day and minimizing production issues.• Collaborated closely with backend developers on microservices implementation using Kafka and ETCD, identified critical bottlenecks that led to early system redesigns. Improved performance, data consistency, and security across server‐side and hybrid client environment.• Managed BambooCI pipelines, trained team members on deploying and maintaining server infrastructure with Microsoft Entra ID, which made testing, development, and deployment smoother, reducing build downtime and speeding up issue resolution.• Within a few months became responsible for quality team, wearing multiple hats and eventually accumulating responsibilities as QA/SDET and Release Manager.• Led QA and release management efforts, established and standardized QA documentation, test strategy, test planning, hiring and onboarding processes from scratch, sharing best practices across the company.• Wrote a significant portion of the project’s technical documentation, sharing expertise within the company using Confluence.• Collaborated with cross-functional teams (Development, QA, Sales, Marketing) for demo server infrastructure deployment and training, securing first clients and receiving recognition from the development director and sales executives.

Education

• Ural State Technical University

  Metallurgical Engineering