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glaxlol games User

@hokvo

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Web3 QA Engineer combining full-stack skills to break, verify, and harden wallet and dApp flows.

Sweden

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What I'm looking for

I’m looking for paid trial or contract work where I can test Web3 wallets, DeFi dApps, and Telegram products end-to-end—building structured test plans, finding edge-case defects, and working asynchronously with developers to verify fixes.

I’m a Detail-oriented Web3 QA Engineer and product tester with hands-on experience testing web applications, Telegram products, backend APIs, real-time systems, and blockchain-related user flows. I use my full-stack background to investigate defects beyond the visible interface, understand application architecture, reproduce complex issues, read logs, inspect network requests, and communicate clearly with developers.

I’m experienced in exploratory, functional, regression, integration, API, and end-to-end testing, and I’m comfortable validating authentication, authorization, database operations, WebSocket updates, responsive interfaces, Telegram Mini App flows, wallet-style interactions, and failure scenarios. I create structured test plans, detailed bug reports, reproduction videos, screenshots, and expected-versus-actual documentation so fixes are verifiable and regression risk is reduced. I also built and tested independent applications from initial prototype through deployment, then repeatedly verified fixes through manual and automated testing.

In Web3 and Telegram contexts, I focus on edge cases and security-minded reliability: I tested complete sale lifecycles in a TON smart contract aggregator, end-to-end wallet flows and sensitive-operation boundaries in a multi-chain non-custodial wallet bot, and real-time state correctness and authorization boundaries in a Telegram Poker Mini App. I’m interested in Web3, DeFi, wallets, dApps, Telegram Mini Apps, privacy-focused products, and security-conscious product development, and I’m ready to start immediately with a paid trial, defined milestones, or task-based compensation.

Experience

Work history, roles, and key accomplishments

Full-Stack Developer & QA

Independent Projects

Developed and QA-tested a non-custodial wallet bot supporting BTC, SOL, TON, BNB Chain, Ethereum, and Litecoin. Built and validated deposit/withdrawal/swap flows with automated and end-to-end regression tests, including failure handling and protection against secret exposure in responses, logs, and errors.

Non Custodial Wallet Flows API Testing End To End Testing Chain Specific Validation Transaction State Synchronization Address Fee Boundary Testing Web3 Error Recovery

Smart Contract Developer & QA

Independent Projects

Developed and QA-tested a TON smart contract aggregator for peer-to-peer asset sales through Fragment, including dynamic commission logic and lifecycle validation. Reproduced defects using logs/network traces, implemented fixes, and verified success, pending, cancelled, rejected, and failed states with wallet authorization and parameter checks.

TON Smart Contracts Smart Contract Testing Blockchain Edge Case Testing Regression Testing

Backend Developer & Tester

Independent Projects

Built Telegram bot flows with backend API integrations and webhook-based event handling, then tested command routing, retries, error responses, and edge-case payloads. Verified webhook configuration, environment variables, API authentication, and deployment behavior using structured logs and reproducible requests.

Telegram Bot API Webhooks Backend API Testing Environment Config Validation

Full-Stack Developer & QA

Independent Projects

Developed and QA-tested a mobile-first Telegram Mini App for multiplayer poker, including authentication, sessions, balances, private rooms, and real-time gameplay. Investigated synchronization issues and authorization boundaries, created repeatable end-to-end checks, and verified server-controlled balance and final decision logic after reconnects and interrupted sessions.

Telegram Mini App Testing Multiplayer State Synchronization

QA and Security Testing (Web)

Independent Projects

Performed exploratory web application testing focused on user-impacting failures and security-sensitive behavior, including authentication/session handling, access control, input validation, and state transitions. Produced actionable bug reports with reproducible steps and supporting evidence (screenshots/recordings, console, network, and logs), and retested fixes to reduce regression risk.

Exploratory testing Negative Testing