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Kyryl Troshchii

@kyryltroshchii

Lead QA Engineer at Catapult who built AI-assisted regression testing with CI/CD and scheduled test runs for a Web3 fintech platform.

Vietnam

Message

At Catapult, I led a team of four QA engineers and owned release quality for a Web3 fintech and betting platform. I tested trading and betting flows across desktop web, iOS, and Android.

I built an AI-assisted QA infrastructure for regression and feature testing, with AI agents using project context, repository autotests, CI/CD test runs, and scheduled runs. I tracked test changes through Git pull requests.

At MemeFi, I tested a play-to-earn fintech product with an audience of 50M+ users. My work included REST API, GraphQL, and WebSocket testing, along with validating data in MongoDB and PostgreSQL.

At IguVerse, I tested a Web3 game with fintech features and ran load and performance tests with Apache JMeter. Earlier, at Rainbow Wallet, I tested wallet features including balances, transfers, and transaction history.

Experience

Work history, roles, and key accomplishments

Lead QA Engineer

Catapult

Sep 2024 - Oct 2026 (2 years 1 month)

Led a team of 4 QA engineers within a 32-person engineering team, defining testing approach and owning release quality. Performed manual back-end and front-end testing of trading and betting flows, validated microservices interactions, and built an AI-assisted QA infrastructure.

REST APIs GraphQL Apollo Sandbox WebSockets PostgreSQL Sentry Browser DevTools ClickUp Git CI CD AI Test Automation Manual Testing Backend Testing Front end Testing Regression Testing Test documentation

QA Engineer

MemeFi

Sep 2023 - Sep 2024 (1 year)

Performed manual functional and regression testing of desktop web and mobile clients for a high-load product with 50M+ users. Tested REST API, GraphQL, and WebSocket integrations, validated data in PostgreSQL and MongoDB, and managed test documentation in TestRail.

REST APIs GraphQL Apollo Sandbox WebSockets Postman MongoDB PostgreSQL Sentry Jira GitHub TestRail Manual Testing Functional Testing Regression Testing

QA Engineer

IguVerse

Aug 2021 - Aug 2023 (2 years)

Performed manual front-end and back-end testing on desktop and mobile, including mobile builds with Expo Go. Tested in-app economy and transaction flows through REST API, GraphQL, and WebSocket, and ran load tests with Apache JMeter.

REST APIs GraphQL Apollo Sandbox WebSockets Postman PostgreSQL JMeter Expo Jira TestRail Manual Testing Front end Testing Backend Testing Performance Testing

QA Engineer

Rainbow Wallet

Oct 2020 - Aug 2021 (10 months)

Performed functional and regression testing of wallet features on desktop and mobile, including balances, transfers, and transaction history. Tested REST API integrations and analyzed network requests with Browser DevTools.

REST APIs Browser DevTools Manual Testing Functional Testing Regression Testing