SMStanislav Moseyko
@stanislavmoseyko
Middle+ QA Engineer specializing in manual, API and growing automation expertise across FinTech and GameDev.
PortugalWhat I'm looking for
I am a Middle+ QA Engineer with 3.5+ years in testing (FinTech, GameDev, Microservices) and over nine years in core engineering, blending hands-on QA with engineering rigour.
I specialize in comprehensive testing of complex systems—functional, performance, UX, and network—working with Unreal Engine 5, Stripe and Xsolla integrations, and microservices API work.
I actively develop automation skills through pet projects in C# (Selenium WebDriver, RestSharp, NUnit) and JavaScript/TypeScript (Vitest, Cypress) with configured CI/CD pipelines and Allure reporting.
I seek roles that combine manual/API QA responsibilities with challenging automation tasks, where I can apply deep API testing, traffic analysis, and end-to-end test automation to improve product quality.
Experience
Work history, roles, and key accomplishments
Middle QA Engineer
FSTR
Jul 2024 - Present (1 year 6 months)
Executed comprehensive functional, performance, UX and network testing of Unreal Engine 5 multiplayer and single-player projects, validated integrations with internal APIs and payment gateways (Stripe, Xsolla), and performed performance analysis using FPS metrics and profiling data.
QA Engineer
NDA Company
Nov 2023 - Jul 2024 (8 months)
Tested a microservices web platform and Telegram-integrated mini-applications, performing in-depth API and authorization testing, traffic analysis and backend response manipulation, and validated Stripe payment integrations.
QA Engineer
Crowdsourced Testing
Jul 2022 - Jul 2024 (2 years)
Executed 50+ functional, UX/UI and API testing projects for international clients in FinTech, Gamedev and e-commerce, producing detailed bug reports with logs and SQL validation checks.
QA Engineer
Timpl.io
Mar 2023 - Jun 2024 (1 year 3 months)
Tested a SaaS tips-collection platform end-to-end, provided QA sign-off for 5+ language localizations, and validated full-cycle Stripe payments including processing, refunds, and tips distribution while collaborating with clients and the CEO on UX and QR card design.
QA Engineer
SWEN
Sep 2023 - Apr 2024 (7 months)
Tested a cross-platform Flutter app for CO2 monitoring across iOS and Android, validated banking API integrations and geolocation-based CO2 calculations using emulators to simulate GPS and timezone changes.
QA Engineer
Ambience Games
Dec 2022 - Jan 2024 (1 year 1 month)
Tested a PC shooter in early pre-production, covering localization (RU/EN), performance and game environment testing to improve stability and user experience.
Geodetic Engineer
Neftezavodmontazh
Feb 2013 - Apr 2022 (9 years 2 months)
Provided geodetic engineering support for construction projects for over 9 years, including team leadership and coordination of surveying activities.
Education
Degrees, certifications, and relevant coursework
PYPracticum by Yandex
Certificate, Quality Assurance
2022 - 2022
Completed the QA Engineer program focused on practical testing skills, tools, and methodologies applicable to web and API testing.
MCMoscow State University of Geodesy and Cartography
Diploma, Geodetic Engineering
2017 - 2017
Studied geodetic engineering coursework leading to qualification as a geodetic engineer.
VEVolgograd University of Architecture and Civil Engineering
Diploma, Transportation Engineering
2014 - 2014
Completed studies in transportation engineering with focus on civil and transport infrastructure principles.
Availability
Location
PortugalAuthorized to work in
Georgia
Russian FederationSalary expectations
Social media
Job categories
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