Денис

DENYS KOSENKO
JUNIOR QA SPECIALIST (GAMEDEV)

PROFILE CONTACT
Kyiv, Ukraine
5+ years as a front-end and software developer, and testing has always been part [open contact info](look above in the "contact info" section)
of the job for me. I write Jest and Playwright tests, so bugs get caught before
they reach users. I've been gaming on PC and mobile since I was a kid, and I [open contact info](look above in the "contact info" section)
also have some Unity-C# experience from working with game mechanics. I use [open contact info](look above in the "contact info" section)
Jira, Bitbucket and Confluence daily at my current job. Right now I'm learning
manual QA on my own, going through gamedev QA breakdowns on YouTube, QA SKILLS
test cases, bug reports, test types, because it's the direction I want to grow in. I • Test cases, checklists, bug reports, bug lifecycle
pay attention to detail and like figuring out why something breaks. English is (the manual testing basics)
B1–B2. • Test types: smoke, regression, exploratory, sanity
• Testing games on PC and mobile
EXPERIENCE • Jira, Confluence, Bitbucket, daily use
• Jest, Playwright
Software Developer • Unity 3D, C#: gameplay mechanics
PNN Soft · 2021 – Present • Git, GitHub
● Worked on 10+ projects, including web interfaces for IoT devices that • AI tools: Claude, Claude Code
connect real hardware to real users • Writing up and tracking defects with a dev team
● Wrote Jest and Playwright tests for my own code, so bugs got caught
EDUCATION
before release, not after
T. Shevchenko National University
● Used Jira for bug tracking, Bitbucket for code review and Confluence
2019 – 2023 · Software Engineering
for docs, every day, on every project
T. Shevchenko National University
● Worked closely with designers, back-end and embedded devs to make
2023 – 2025 · Project Management
sure a feature actually behaved the way it was supposed to
● Helped onboard and mentor new people on the team COURSES

Technical Mentor ITEA
IT Courses · 2021 2020 – 2021 · Front-End Course
English Prime
● Reviewed students' homework and pointed out bugs and
English course, B2
inconsistencies in their code
QA basics for games
● Graded assignments in the CMS against set criteria
Self-study, YouTube
● Answered questions in chat, basically doing support for people still
learning LANGUAGES

HTML, WordPress Developer Ukrainian, native
Freelance · 2020 – 2021 English, B1–B2
● Built landing pages and prepared markup for CMS installs
● Installed and maintained WordPress sites, including a few legacy ones