Xsolla

Senior QA Engineer – Web3

Xsolla

full-time

Posted on:

Location Type: Hybrid

Location: Montreal • Canada

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Job Level

Senior

Tech Stack

Node.jsWeb3

About the role

  • Lead manual testing of complex Web3 and platform features across multiple environments
  • Validate blockchain interactions, wallet flows (e.g., MetaMask, WalletConnect), and decentralized identity/authentication
  • Test smart contract interactions, event handling, and on‑chain/off‑chain data synchronization
  • Drive exploratory, functional, and regression testing using structured documentation and deep product knowledge
  • Identify, log, and track reproducible issues with precision using Jira or similar tools
  • Validate blockchain node responses, RPC interactions, and event‑driven workflows
  • Validate transaction signing, wallet authentication, and multi‑chain compatibility
  • Collaborate with engineers to test smart contract upgrades, migrations, and versioning
  • Monitor production logs, blockchain explorers, and analytics dashboards to detect anomalies
  • Create and maintain detailed test cases, checklists, and QA documentation
  • Collaborate with engineering and DevOps teams to ensure reliable CI/CD test coverage for Web3 components
  • Evaluate and integrate AI‑powered testing tools (e.g., automated test generation, log analysis, visual regression)
  • Set up and manage test environments, staging pipelines, and job configurations
  • Conduct load, stress, and performance testing—especially around high‑volume Web3 interactions
  • Act as a quality advocate across sprint planning, reviews, and release cycles
  • Mentor junior QA engineers and promote a culture of proactive quality ownership
  • Contribute to best practices for testing decentralized systems and hybrid architectures

Requirements

  • Minimum 7 years of total QA experience, including ownership of end‑to‑end quality
  • At least 2 years of hands‑on Web3 testing experience, covering blockchain integrations, wallet flows, or decentralized systems
  • Strong understanding of manual testing methodologies and defect life cycle
  • Familiarity with blockchain fundamentals (e.g., transactions, gas, confirmations, RPC endpoints)
  • Experience validating APIs using Postman or similar tools
  • Proficiency with bug tracking systems (e.g., Jira) and version control (e.g., Git)
  • Comfortable using browser developer tools and basic terminal/command‑line workflows
  • Strong verbal and written English communication skills
  • Familiarity with AI‑powered testing tools (e.g., test case generation, smart prioritization, AI log analysis)
Benefits
  • Latest Mac workstations + additional hardware to support productivity
  • Google Chat, Gmail, Google Drive, Confluence, Jira, GitLab
  • Free trainings and participation in specialized conferences
  • Knowledge‑sharing culture across global teams
  • Health insurance (medical, dental, optical) for employees and dependents
  • Flexible working hours
  • No dress code
  • Comfortable, modern office environment
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
manual testingWeb3 testingblockchain integrationssmart contract testingAPI validationload testingperformance testingdefect life cycleexploratory testingregression testing
Soft Skills
communication skillsmentoringquality ownershipcollaborationattention to detailproblem-solvingproactive mindsetorganizational skillsleadershipcritical thinking