The Role
The Senior QA Engineer will lead testing of Web3 applications, focusing on blockchain integrations and decentralized systems while mentoring junior engineers and improving QA practices.
Summary Generated by Built In
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.
ABOUT US
Xsolla is a global commerce company with robust tools and services to help developers solve the inherent challenges of the video game industry. From indie to AAA, companies partner with Xsolla to help them fund, distribute, market, and monetize their games. Grounded in the belief in the future of video games, Xsolla is resolute in the mission to bring opportunities together, and continually make new resources available to creators. Headquartered and incorporated in Los Angeles, California, Xsolla operates as the merchant of record and has helped over 1,500+ game developers to reach more players and grow their businesses around the world. With more paths to profits and ways to win, developers have all the things needed to enjoy the game.
For more information, visit xsolla.com.
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
- Verify 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
- 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
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
- 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:
Convenient work tools
Latest Mac workplaces + additional hardware to make you more effective at work
Google Chat, Gmail, Google Drive, Confluence, Jira, GitLab
Professional growth
Free trainings and participation in specialized conferences
Rich knowledge exchange within the company
More perks
Health insurance (Medical, dental and optical)- Employee and dependants
Flexible hours: organize your day according to your needs and sprint & teamwork demands
No dress code
Comfortable and new office environment
The duties of this position may change from time to time so the individual and organization can achieve their results. This job description is intended to describe the general level of work being performed. It is not intended to be all-inclusive. By submitting your application, you consent to Xsolla conducting background checks, where permitted by law, after the final interview stage. All checks will comply with local regulations, and your information will be handled confidentially. Xsolla KL Sdn Bhd takes your privacy very seriously, and will not sell or externally distribute any data received during the hiring process. Pursuant to the Personal Data Protection Act 2010 (“PDPA”), Xsolla KL Sdn Bhd is mindful and committed to the protection of your personal information and your privacy. Please direct any inquiries regarding your data privacy to [email protected].
For more vacancies: https://xsolla.com/careers
Top Skills
APIs
Bash
Blockchain
Cypress
Git
JIRA
Linux
Metamask
PHP
Playwright
Postman
Selenium
Walletconnect
Web3
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The Company
What We Do
Xsolla's video game business engine helps game developers and publishers operate more efficiently and sell more games. Serving only the video game industry, Xsolla caters to businesses from indie to enterprise, with solutions that solve the complexities of distribution, marketing, and monetization so developers, publishers, and platform partners. Our goal is to increase your audience, sales and revenue. Headquartered in Los Angeles, with offices worldwide, Xsolla operates as a merchant and seller of record for major gaming entities like Valve, Twitch, Ubisoft, Epic Games, and PUBG Corporation.
