Senior QA Engineer

Xsolla

Montreal, Québec, Canada

Montreal, Québec, Canada

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Über

About Us Xsolla is a global commerce company powering the business of games. With a robust suite of tools and services, we help developers solve the complex challenges of funding, distributing, marketing, and monetizing their games. From indie teams to AAA studios, we support creators worldwide with scalable solutions that accelerate growth and unlock new revenue opportunities As the industry evolves, we continue expanding into emerging technologies—including Web3, blockchain‑enabled game features, digital asset ownership, and decentralized identity—to help developers build the next generation of player experiences Learn more at Launch, monetize, and scale with Xsolla tools and services
About You We are looking for a Senior QA Engineer with strong Web3 experience to join our engineering team. You are meticulous, technically sharp, and deeply curious about decentralized technologies. You understand the nuances of blockchain interactions, wallet integrations, smart contract behavior, and hybrid on‑chain/off‑chain systems You thrive in fast‑paced, agile environments and bring a proactive approach to quality—anticipating risks, validating distributed systems, and ensuring seamless user experiences across Web3‑enabled features. You are confident in manual testing, comfortable with API‑level validation, and eager to integrate AI‑driven testing tools to improve coverage, speed, and defect detection If you're excited to shape quality practices for blockchain‑enabled products and help define how Web3 experiences should feel for millions of users, we'd love to meet you
Responsibilities Core QA Ownership

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

Web3‑Specific Quality Work

fy 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

Process & Tooling

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

Quality Leadership

ct 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

Qualifications & Skills

Required

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)

Good to Have

Experience with wallet testing (MetaMask, Coinbase Wallet, WalletConnect, custom wallets)

Understanding of smart contracts, Solidity basics, or blockchain debugging tools

Experience with automated testing frameworks (Playwright, Cypress, Selenium)

Knowledge of backend technologies, APIs, and familiarity with PHP or related languages

Experience working in Linux environments and using Bash scripting

Hands‑on experience with AI platforms used in QA contexts

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

Montreal, Québec, Canada

Sprachkenntnisse

English

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