Oleksandr

Oleksandr Mozghovoi
Senior QA Engineer (Manual) · FinTech / Crypto · Web & Mobile

Remote · Relocation-ready · English B1
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SUMMARY
Senior QA Engineer (Manual) with 4+ years of experience in FinTech and Crypto products (Web & Mobile). Strong
expertise in testing blockchain-based systems, crypto transactions, wallet integrations, and payment flows.
Experienced in startup environments without clear requirements or predefined test plans, owning the entire testing
process end-to-end. Hands-on experience with L2 networks, TRON, Solana, and StarkNet.

CORE EXPERTISE
• Manual testing (Web & Mobile): functional, regression, exploratory

• Test strategy & coverage creation from scratch (startup environment)

• Blockchain transaction testing: L2, TRON, Solana, StarkNet

• Wallet integrations, signing flows, confirmations, fees, edge cases

• Manual API testing (Postman), basic SQL for data validation

• Jira, Trello, Notion, Agile / Scrum

PROFESSIONAL EXPERIENCE
Senior QA Engineer (Manual) — Crypto Bank
FinTech / Crypto · Aug 2021 — Present

• Sole QA in a crypto bank without formal requirements or specifications

• Built test strategy, checklists, and coverage from scratch based on business risks

• Owned manual testing of web and mobile applications handling crypto and fiat assets

• Led testing of blockchain transaction flows across L2 networks, TRON, Solana, and StarkNet

• Validated wallet connection, transaction signing, confirmations, failures, and rollbacks

• Tested edge cases: stuck transactions, insufficient fees, delays, duplicates

• Verified balances, fees, and transaction statuses across frontend, backend, and blockchain explorers

• Performed manual API testing using Postman and collaborated with developers

BUSINESS & ENTREPRENEURIAL EXPERIENCE
Founder & Owner — Anti-Stress Room
Offline Business · Jan 2020 — Present

• Founded and operate a physical anti-stress room business

• Managed full business lifecycle: launch, operations, customer experience

• Built pricing strategy, unit economics, and profitability tracking

• Worked with customer feedback, retention, and repeat sales

EDUCATION
Bachelor’s Degree — Business & Management
Alfred Nobel University, Ukraine (2021–2025)

LANGUAGES
English — B1 · Ukrainian — Native · Russian — Native