Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I am Oleg Brizitsky, a Lead QA Engineer with over 20 years of experience designing and scaling quality engineering solutions for complex, distributed, and AI-driven systems. I specialize in validating ML models, AI agent workflows, and decision logic within real-world business pipelines.\n\nI have a proven track record building modern automation frameworks using Playwright and performance testing with JMeter. I transform QA into a proactive, data-driven quality function and collaborate closely with data scientists and ML engineers to ensure model reliability and production readiness. I actively leverage AI-assisted development tools to accelerate automation and increase engineering efficiency.…I am Oleg Brizitsky, a Lead QA Engineer with over 20 years of experience designing and scaling quality engineering solutions for complex, distributed, and AI-driven systems. I specialize in validating ML models, AI agent workflows, and decision logic within real-world business pipelines.\n\nI have a proven track record building modern automation frameworks using Playwright and performance testing with JMeter. I transform QA into a proactive, data-driven quality function and collaborate closely with data scientists and ML engineers to ensure model reliability and production readiness. I actively leverage AI-assisted development tools to accelerate automation and increase engineering efficiency.

Oleg Brizitsky

QA Engineer, Web Developer, Programmer, +5





I am Oleg Brizitsky, a Lead QA Engineer with over 20 years of experience designing and scaling quality engineering solutions for complex, distributed, and AI-driven systems. I specialize in validating ML models, AI agent workflows, and decision logic within real-world business pipelines.\n\nI have a proven track record building modern automation frameworks using Playwright and performance testing with JMeter. I transform QA into a proactive, data-driven quality function and collaborate closely with data scientists and ML engineers to ensure model reliability and production readiness. I actively leverage AI-assisted development tools to accelerate automation and increase engineering efficiency.…I am Oleg Brizitsky, a Lead QA Engineer with over 20 years of experience designing and scaling quality engineering solutions for complex, distributed, and AI-driven systems. I specialize in validating ML models, AI agent workflows, and decision logic within real-world business pipelines.\n\nI have a proven track record building modern automation frameworks using Playwright and performance testing with JMeter. I transform QA into a proactive, data-driven quality function and collaborate closely with data scientists and ML engineers to ensure model reliability and production readiness. I actively leverage AI-assisted development tools to accelerate automation and increase engineering efficiency.

Available to hire

I am Oleg Brizitsky, a Lead QA Engineer with over 20 years of experience designing and scaling quality engineering solutions for complex, distributed, and AI-driven systems. I specialize in validating ML models, AI agent workflows, and decision logic within real-world business pipelines.\n\nI have a proven track record building modern automation frameworks using Playwright and performance testing with JMeter. I transform QA into a proactive, data-driven quality function and collaborate closely with data scientists and ML engineers to ensure model reliability and production readiness. I actively leverage AI-assisted development tools to accelerate automation and increase engineering efficiency.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Lead QA Engineer at Lydia AI

January 1, 2021 - Present

Lead QA strategy for an AI-driven SaaS platform, validate AI model outputs on real-world datasets, build automation using Playwright and Allure reporting, develop end-to-end workflow tests, lead AI model upgrade regression testing, and collaborate with ML engineers and data scientists to ensure model reliability and production readiness.

QA Lead / Engineer at Lydia.ai

January 1, 2021 - Present

Led the development and execution of comprehensive test plans and strategies for a Health AI SaaS platform. Automated UI testing using Playwright with TypeScript and Allure, conducted performance testing with JMeter, mentored a QA team, and collaborated cross-functionally to ensure timely delivery of high-quality software. Validated API functionality and integration with UI and backend components using Postman.

QA Lead Engineer at Acuity Ads

January 1, 2018 - January 1, 2021

Led the development and execution of comprehensive test strategies for an advertising platform, mentored QA team, automated UI tests with Selenium, performed performance testing with JMeter, and coordinated API/UI/backend integration testing across cross-functional teams.

QA Lead / Engineer at Acuity Ads

January 1, 2018 - January 1, 2021

Managed and mentored a QA team for a digital advertising platform. Led test strategy development and design, implemented UI automation with Selenium (Java), performed advanced performance testing with JMeter, and facilitated cross-functional collaboration via Jira and Confluence to report KPIs to senior management.

Senior QA Engineer at Lavasoft

January 1, 2016 - January 1, 2018

Designed and executed automated tests using Java and Selenium; conducted performance testing with JMeter to improve responsiveness; collaborated with development and product teams to define testing requirements and ensure product quality; performed API/UI/backend testing to identify and resolve defects.

Senior QA Engineer at Nexsan

January 1, 2014 - January 1, 2016

Executed manual and automated functional tests for unified storage systems; managed NST and E-Series test environments; utilized Jira for issue tracking and requirements management; applied testing across networking-focused environments and multi-OS test setups.

Senior QA Engineer at Connexion

January 1, 2008 - January 1, 2014

Contributed to testing processes for a VoIP emergency gateway, performing functional and non-functional testing, and validating telecom protocols to support emergency call routing and web UI workflows.

Senior QA Engineer at Connexon

January 1, 2008 - January 1, 2014

Contributed to testing processes for an Emergency Gateway solution (VoIP). Performed functional and non-functional testing, designed and executed manual test cases, and implemented JMeter automated test suites to improve efficiency and coverage; validated telecom protocols and web UI functionalities.