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Artem Turlenko

@artemturlenko

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QA Engineer who accelerates bug discovery through deep development, API, and automation testing expertise.

Germany

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What I'm looking for

I’m looking for a QA role where I can own end-to-end test strategy—manual and automated—partner with developers, and improve product quality with strong API, security, and UX-driven coverage.

I’m a QA Engineer with a development background, focused on finding bugs faster by understanding how they’re introduced. At atpro.dev, I write and execute test checklists and bug reports, validating Core Web Vitals and SEO compliance before releases.

I use Postman to debug and validate API endpoints, inspect responses, trace errors, and confirm correct behavior. I also run pre-release regression checks and performance profiling with Chrome DevTools, then verify compatibility across browsers and devices.

As a QA Engineer & Founder on the Quasar open-source project, I manually test critical user journeys like real-time messaging, encryption handshakes, and authentication across environments. I document findings with reproduction steps and expected vs. actual behavior, and I verify fixes that are commit-linked.

Earlier, I worked as a Full-Stack Developer at Dev.Pro, writing unit and integration tests with Jest/Jasmine and supporting Cypress and Selenium suites. I also led QA checkpoints for UI consistency, accessibility, and cross-browser behavior as Lead Designer at Zano Coin, bringing UX/UI thinking into every test strategy.

Experience

Work history, roles, and key accomplishments

Current

QA Engineer

Current

Atpro.dev

Jun 2025 - Present (1 year)

Wrote and executed test checklists and bug reports for web features before each release, validating Core Web Vitals and SEO compliance. Used Postman to debug and validate API endpoints, and performed pre-release regression and performance profiling with Chrome DevTools.

Manual Testing Regression Testing Cross Browser Testing Chrome DevTools Performance Profiling

Current

QA Engineer & Founder

Current

Quasar Contact

Nov 2024 - Present (1 year 7 months)

Manually tested real-time messaging, encryption handshakes, and authentication flows across browsers and devices for an open-source project. Tracked and documented bugs with reproduction steps and verified API responses and security-sensitive behaviors including encryption, JWT auth, XSS handling, and CORS configuration.

Exploratory testing Security Testing Encryption Handshake Testing JWT XSS Bug Reporting

Full-Stack Developer

Dev.Pro

Nov 2021 - Sep 2022 (10 months)

Wrote unit and integration tests in Jest/Jasmine achieving 60%+ coverage and supported Cypress and Selenium E2E test suites. Participated in code reviews and agile ceremonies, mentoring in advanced JavaScript patterns to improve code quality and testability.

Unit Testing Integration Testing Code Review Agile Javascript (ES6)Test Coverage Mentorship

Lead Designer

Zano Coin

Jun 2019 - Oct 2021 (2 years 4 months)

Led a 5-person team delivering Zano.org and coordinated QA checkpoints focused on UI consistency, accessibility, and cross-browser behavior. Ensured design and release readiness through ongoing quality validation during delivery.

Team Leadership UI Testing Accessibility Testing QA Checkpoints Quality Assurance