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Khudan Sergii QA Manual
[open contact info](look above in the "contact info" section) [open contact info](look above in the "contact info" section) Ukraine Sergii Khudan

@bel_o_kan Officially reserved from military draft.

PROFILE

I'm a QA Engineer with 4+ years of experience in manual testing of web, backend, API, and mobile applications.
I’m highly adaptable and fast-learning, with a proven ability to quickly integrate into new teams and workflows. I have
strong analytical skills, a solid understanding of client needs, and the ability to see the big picture of the project. I am
currently expanding my skills in QA Automation and DevOps.

ACHIEVEMENTS

Built and documented a full-cycle load testing process with JMeter
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Introduced code analysis–based testing techniques to enhance defect detection at early stages
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Maintained high test quality under high-load and fast-paced conditions
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Mentored junior QAs and supported knowledge transfer
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PROFESSIONAL EXPERIENCE

10/2022 – present NDA
Remote General Manual QA Engineer
Manual testing of API (Postman), backend (PHP)
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Regression, smoke, gray-box, and performance testing (JMeter)
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Maintenance of automated tests (Python)
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Built a full-cycle load testing process from scratch using JMeter
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Worked with logs, Kafka, Redis, GitHub
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Active contributor to the QA process in a high-load iGaming product
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09/2021 – 08/2022 Ozzylogik
Kyiv, Ukraine Manual QA
Testing API, backend (PHP), web, and Android apps
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Created and executed test cases, bug reporting
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Worked with system logs
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03/2020 – 09/2021 ND Group
Kyiv, Ukraine L3 Support Engineer / QA / BA
Performed testing of web services and backend
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Created BRD, FRD, user stories, release notes
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Mediated between business and tech teams
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Deployed web services, mentored new employees
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REFERENCES

Daria Petrychenko - Software Engineering Manager
"Sergii and I have worked together on several projects, and have made about a dozen releases.He is an easily
adjustable to a given situation person with great multi-tasking ability. His expertise as a QA Engineer is considerable,
and I highly recommend Sergii."
Oleksii Malashyna - Product Management
"Sergeii was my student in QAlight school on QA course. Based on his homeworks and class practice I would consider
Sergio as a person with analytical, engineering, communicational and management skills. It is great pleasure to work
with him."

SKILLS

Tech Soft
Manual Testing: Web, API, Backend, Mobile, Functional,
• Teamwork
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Integration Decision-making
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Test Documentation: Test Cases, Bug Reports, Reports
• Business orientation
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Tools: Postman, JMeter, DevTools, GitHub
• Conflict resolution skills
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Automation: Python (basic maintenance of existing
• Responsibility
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tests)
Performance Testing: JMeter (built full testing process)
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Databases: MySQL, PostgreSQL, Redis, MongoDB,
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ClickHouse
OS & Shell: Linux (basic), Bash
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Agile Methodologies: Scrum, basic Kanban
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Infrastructure: RabbitMQ, Kafka, K8s (basic), CI/CD
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understanding

LANGUAGES

English - Intermediate (B1)

COURSES AND EDUCATION

01/2025 – present DevOps
SoftServe Academy

01/2023 – 06/2023 QA Automation (Python)
Hillel IT School

10/2019 – 07/2020 Software Testing
QA Light

2003 – 2008 Railway Transport Civil Engineer
Donetsk Institute of Railway Transport