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Yarko DarkoYD
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Yarko Darko

@yarkodarko

Manual QA Engineer testing a native iOS and Android land location app, validating geospatial data, offline behavior, and analytics instrumentation.

Ukraine
Message

On a native iOS and Android land location app, I tested coordinate conversion, maps, search, subscriptions, and offline behavior. I designed and executed more than 130 test cases and checked geospatial rendering against the shipped dataset.

I also verified analytics instrumentation in Amplitude and measured performance across real devices. In Linear, I managed defect reports and retests, checking fixes against acceptance criteria.

As an Independent QA Reviewer for a US Real Estate SaaS product, I reviewed controlled specifications before build and identified about 20 lock-blocking defects, all resolved before lock. I also use AI agents for test artifacts, specification audits, and exploratory testing, manually verifying every result against its source.

Experience

Work history, roles, and key accomplishments

OA
Current

Manual QA Engineer

Oil & Gas Land Location Mobile App

Sep 2024 - Present (2 years 2 months)

Performed feature QA on a native iOS and Android app, covering coordinate conversion, map layers, search, folders, subscriptions, and offline mode. Designed and executed 130+ test cases, validated tier-gated features, and managed defect lifecycle in Linear.

SA

QA Engineer

SEO Desktop Application

Jan 2024 - Present (2 years 10 months)

Engaged for a one-week test pass on an early desktop build, later extended to a month. Completed functional testing, delivered UI/UX recommendations, and proposed additional feature scope with a revenue assessment.

Education

Degrees, certifications, and relevant coursework

Lviv Polytechnic National University logoLU

Lviv Polytechnic National University

Bachelor's Degree, Cyber Security

Pursued a Bachelor's Degree in Cyber Security, which supports analytical thinking and structured reporting.

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