vvilli4m

Quality Engineer specialized in the reliability and correctness of Web3 systems, focusing on wallets, transactions, swaps, and multichain environments.

I validate end-to-end transaction flows, from construction and signing to network submission and on-chain confirmation, identifying failure modes that could lead to silent errors, degraded UX, or irreversible user loss. My work spans both EVM and non-EVM networks, including complex multichain scenarios and edge cases.

Using Testrail, I create test cases and test plans based on Jira stories and Figma designs, executing them to validate releases across browser extensions and mobile apps, and open clear tickets with preconditions, steps to reproduce, actual and expected result to help the team reproduce issues. Additioannally screenshots, screencast and related datas are included.

Contributed to a major wallet revamp (XDEFI → CTRL), ensuring transaction safety, wallet behavior consistency and transition, also regression coverage across critical user flows

My hands-on testing also includes hardware wallets such as Ledger and Trezor, comparison with different hot wallets, and Walletconnect.

While focus is on manual and system-level QA, I am definitively open to gradually expanding into automation over time, complementing my practical understanding of real system behavior.

Maintains a quiet, rigorous, and dependable approach, with strong attention to user safety, fund protection, and product trust, and collaborates closely with teams to ensure practical outcomes (product owners, developers, designers, and customer support).