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 Projects Connect
test-orchestrator — live
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Tech Stack

system.components.list()

Test Frameworks

  • Playwright
  • Cypress
  • Selenium
  • Jest / Vitest
  • k6 / Artillery
  • Foundry

Web3 / DeFi

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

AI Integration

  • Claude MCP
  • Cursor
  • GitHub Copilot
  • LLM Pipelines

Languages

  • TypeScript
  • Go
  • Java
  • Solidity
  • Python
$ Additional: BDD (Gherkin), MongoDB, Docker, Jenkins, GitHub Actions, AWS
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Latest Projects

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.

Claude Code | TypeScript | ethers.js | Tenderly
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 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 BLOCKCHAIN

API + Chain Hybrid Testing

Problem

Bridge/liquidity protocol requiring mixed API state validation with blockchain execution behavior. Traditional API tests missed chain-state edge cases.

Architecture

Cypress API suite with ethers.js integration. Dynamic balance querying via pool contracts. Liquidity reservation scenarios with real-time chain state validation.

Impact

Found early configuration bugs, bad chain states, incorrect roles, and corrupted calldata before production deployment.

Cypress | ethers.js | TypeScript | GitHub Actions
GOLANG EVM SIMULATION

Swap API Simulator

Problem

Need to compare swap API output against 5+ competitors (0x, LiFi, Barter) with actual execution results, not just quoted amounts.

Architecture

Go tool using w3 library. Quotes all APIs, extracts calldata, spins up EVM fork from correct block header, executes transactions, compares actual output amounts.

Impact

90% bug reduction. Reliable platform to test different swap engine configurations. Stable nightly builds, easy to maintain and scale.

Go | w3 Library | EVM Fork | Nightly CI

Miso Credit Vaults

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

Hybrid API + on-chain test coverage

Sygma Protocol

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

Multi-protocol architecture validation

Kraken WebSocket Tests

REST API and WebSocket testing demo for Kraken exchange.

View on GitHub →
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Connect

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GH
GitHub

github.com/LyonSsS

 LI
LinkedIn

Liviu Damian

$ Open to consulting on QA architecture across Web2 (finance, healthcare, banking) and Web3 (DeFi, cross-chain), AI-augmented pipelines, and test automation strategies.