Stone Glade
Ivan Mezhenin with Mount Fuji behind him

Ivan Mezhenin

Game developer and senior game QA engineerIn Russian: Иван МеженинIn Japanese: メジェニン イヴァン

Ivan Mezhenin is a game developer and senior game QA engineer based in the Tokyo area, Japan. He founded the independent studio Stone Glade, which has shipped eight games across Fortnite, Roblox, web and Android, and he has worked in QA and localization QA on 40+ released titles, with credits on Resident Evil 4, Dragon's Dogma II and Fate/stay night REMASTERED.

Based in
Tokyo area, Japan (since 2019)
Now
Senior FQA at TransPerfect
Studio
Stone Glade, founded 2020
Languages
Russian, English, Japanese
Contact IvanLinkedInMobyGames credits

Credited on

Commercial games where Ivan appears in the credits, through DIGITAL HEARTS. He has done QA and localization QA on 40+ released titles in total, for Nintendo Switch, PlayStation, Xbox, PC, VR and mobile; most client names are under NDA.

GameYearPublisherRoleSource
Fate/stay night REMASTERED2024Aniplex / TYPE-MOONLQA test lead (team of 14)Staff credits (ERCR wiki)
Dragon's Dogma II2024CapcomTesterMobyGames
Resident Evil 4 / Separate Ways2023CapcomRussian LQA testerMobyGames
Neptunia Riders vs Dogoos2025Idea Factory / Compile HeartQA team leadMobyGames

Experience

  1. 2024 to now

    Senior FQA (Gaming Test Engineer)

    TransPerfect

    • Functional QA on 10+ titles across PC, all current consoles and mobile, including a AAA MMORPG.
    • Works with Jira, Confluence and Jenkins in client pipelines.
  2. 2021 to 2024

    Russian LQA tester, then QA team lead

    DIGITAL HEARTS

    • LQA, functional and compliance testing on 30+ released titles for Nintendo Switch, PlayStation 4 and 5, PC, VR and mobile.
    • Led LQA and compliance teams of up to 16 testers, including 14 on Fate/stay night REMASTERED.
    • Credited on Resident Evil 4, Dragon's Dogma II, Fate/stay night REMASTERED and Neptunia Riders vs Dogoos.
  3. 2020 to now

    Founder and game developer

    Stone Glade

    • Designs, programs and publishes the studio's games alone, from concept to live updates.
    • Eight games shipped on Fortnite, Roblox, web and Android; 65,000+ players on Fortnite.
  4. 2010 to 2022

    Digital marketing and analytics

    IQSEO, Pravoved.RU, freelance

    • Ten-plus years of SEO, SEM/PPC, social and affiliate marketing, with KPI and ROI analytics.
    • Grew a mobile game's downloads by 15% through targeted ads.

Games he built

As the founder of Stone Glade, Ivan designs, programs and publishes every game himself. His Fortnite islands alone have been played by 65,000+ people.

He has also published a Kenshi mod on the Steam Workshop with 123 subscribers. Prototypes, including a VR mesh-slicing test, are in the lab.

Skills

Engines and languages
UEFN with Verse, Unreal Engine with C++, Unity with C#, Roblox Studio with Luau, Godot for prototyping
Game systems
Progression and prestige, economies and monetization, persistence, multiplayer, physics, UI, VFX
QA
Functional, regression, localization (LQA) and compliance testing; test case design; leading test teams
Automation and tools
Python with Selenium and Pytest, API testing, CI/CD with Jenkins, Jira, Confluence, TestRail, Git
AI
Builds his own LLM agents for development and QA work
Marketing
SEO, SEM, PPC, store and ad analytics (KPI, ROI, CR, CPC, CPL)

Research

Evaluation of Illumination in 3D Scenes Based on Heat Maps Comparison. Aleksandr V. Mezhenin, Vera V. Izvozchikova, Ivan A. Mezhenin. Journal of Advances in Information Technology, vol. 14, no. 3, pp. 601-605, 2023. DOI 10.12720/jait.14.3.601-605.

Engineering lighting tools are a poor fit for game and art scenes. The paper treats illumination heat maps as images and merges them into one generalized heat map, giving a single score for comparing lighting setups and showing which areas of a scene react most to lighting changes. Indexed in Scopus and Web of Science.

Education and certificates

ITMO University, St. Petersburg
Specialist degree (5-year, master's level) in information security, 2007 to 2014
Unity
Unity Junior Programmer
Sololearn
C# Intermediate

Languages

Russian
Native
English
Fluent (TOEIC 935)
Japanese
JLPT N3

Questions people ask

Who is Ivan Mezhenin?
Ivan Mezhenin is a game developer and senior game QA engineer based in the Tokyo area, Japan. He founded the independent studio Stone Glade, which has shipped eight games across Fortnite, Roblox, web and Android, and he has worked in QA and localization QA on 40+ released titles, with credits on Resident Evil 4, Dragon's Dogma II and Fate/stay night REMASTERED.
What is Stone Glade?
Stone Glade is an independent game studio in Japan, founded in 2020 by game developer Ivan Mezhenin. It makes games for Fortnite (built in UEFN with Verse), Roblox and Unity, with a focus on progression systems, replayable loops and live updates.
Which commercial games has Ivan Mezhenin worked on?
He is credited on Fate/stay night REMASTERED (LQA test lead), Dragon's Dogma II, Resident Evil 4 with its Separate Ways expansion, and Neptunia Riders vs Dogoos. In total he has done QA and localization QA on 40+ released titles; most client names are under NDA.
Which game engines does he use?
UEFN with Verse for Fortnite, Roblox Studio with Luau, Unity with C# and Unreal Engine with C++. He also prototypes in Godot.
Where is he based and which languages does he speak?
He lives in the Tokyo area, Japan, where he has been since 2019. He speaks Russian (native), English (TOEIC 935) and Japanese (JLPT N3).
How can I contact him?
Use the contact section on his profile page, which shows his email address and Telegram, or message him on LinkedIn.

Contact

For game development, QA or collaboration enquiries:

Email and Telegram are shown only after a click, to keep them away from spam bots.