SYSTEMS OPERATIONAL

Liviu Damian

Senior QA Architect

10+ years engineering quality into mission-critical systems.

Architecting AI-Augmented QA pipelines and Cross-Chain DeFi testing frameworks that catch what others miss.

Playwright Cypress Claude MCP Foundry/Anvil Tenderly TypeScript Ethers.js
View Case Studies Connect
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Tech Stack

system.components.list()

Test Frameworks

  • Playwright
  • Cypress
  • Foundry
  • HardHat

Web3 / DeFi

  • Ethers.js
  • Web3.js
  • Tenderly
  • Anvil Forks

AI Integration

  • Claude MCP
  • Cursor
  • GitHub Copilot
  • LLM Pipelines

Languages

  • TypeScript
  • Solidity
  • Rust
  • Python
$ Additional: BDD (Gherkin), MongoDB, Docker, Jenkins, GitHub Actions, AWS
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Case Studies

qa.getProjects(featured=true)

BLOCKCHAIN CROSS-CHAIN

Cross-Chain Solver Validation

Problem

DeFi solver aggregating 8+ cross-chain routes (Across, LiFi, Mayan) with multiple third-party integrations. Generic architecture exposed chain-specific edge cases.

Architecture

Built modular pipeline: Generator → Processor → Command → E2EValidator. Bidirectional spam runners with event listeners validating fill events, depositId matching, and relayer behavior.

Impact

Caught MPC signature bugs, invalid indexed data, incorrect gas calculations, and architecture-specific smart contract misconfigurations before production.

TypeScript | ethers.js | Tenderly | GitHub Actions
AI-AUGMENTED AUTOMATION

Autonomous QA Pipeline

Problem

DeFi card infrastructure with hybrid API/on-chain flows (ERC-7540/4626 vaults, auto top-up). Manual test creation couldn't keep pace with rapid feature development.

Architecture

PR Monitor → QA Ticket → AI Test Generation workflow. Claude Code generates Gherkin scenarios and step definitions from curated tickets. 55 scenarios covering API validation and on-chain behavior.

Impact

40% faster test design, 50% reduced maintenance. 70% of tests now auto-generated. Discovered undocumented service behaviors during on-chain testing.

Claude Code | Playwright BDD | ethers.js | TypeScript

API + Chain Hybrid

Mixed blockchain execution with API state validation. Cypress + ethers.js.

Found early config bugs, bad chain states, corrupted calldata

Swap API Simulator

Go tool comparing 6 swap APIs. EVM fork simulation with w3 library.

90% bug reduction, stable nightly builds

Miso Credit Vaults

ERC-7540/4626 vault testing: async redeem, collateral, auto top-up.

55 scenarios, 24 API + 31 on-chain

Sygma Protocol

Cross-chain bridge testing: EVM, Bitcoin, Substrate ecosystems.

Multi-protocol architecture validation

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Connect

contact.init()

GH
GitHub

github.com/LyonSsS

 LI
LinkedIn

Liviu Damian

$ Open to consulting on DeFi testing architecture, AI-augmented QA pipelines, and cross-chain validation strategies.