Senior QA Engineer - Web3 (

Posted 8 Hours Ago
Be an Early Applicant
3 Locations
In-Office or Remote
Senior level
Gaming
The Role
Lead quality assurance for Web3 and platform features through manual, exploratory, functional, regression, API, performance, and blockchain testing. Validate wallets, smart contracts, transactions, RPC interactions, decentralized authentication, and on-chain/off-chain synchronization. Manage test environments, documentation, CI/CD coverage, production monitoring, and defect tracking. Evaluate AI-powered testing tools, mentor junior QA engineers, and promote quality practices across agile development and release cycles.
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:

  • 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
  • Identify 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

Qualifications & Skills:

  • 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)

Nice 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:
We are passionate about fostering a supportive environment for our team, so we prioritize the physical, mental, and emotional well-being of our employees and their families through a comprehensive Benefits Program. This includes medical, dental, and vision, PTO, and a personalized career roadmap for each employee. By investing in professional development through training and educational opportunities, we ensure that our team thrives both personally and professionally. Together, we’re not just building a business; we’re cultivating a community that values creativity, collaboration, and the transformative power of play. 
 
Equal Employment Opportunity Statement:
Xsolla is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, color, religion, sex, national origin, age, disability, sexual orientation, gender identity, or any other characteristic protected by law.
We consider qualified applicants with criminal histories in accordance with the Fair Chance Act.
 
Criminal History Consideration:
For the Senior QA Engineer - Web3, we will conduct a background check that may include the following:
Criminal history check
Employment verification
Education verification
 
Relevance to Job Responsibilities:
The background check is relevant to this position because of the following role responsibilities:
Accessing confidential company data
Ensuring compliance with regulatory requirements
 
Rights Under the Fair Chance Act:
Applicants are encouraged to inquire about their rights under the Fair Chance Act. If you have questions regarding our hiring practices, please contact [email protected].
By submitting the following job application form, you consent to Xsolla processing your data for career-related inquiries and potential employment opportunities. We process your data in accordance with this Xsolla Privacy Notice for Job Applicants. Please direct any inquiries regarding your data privacy to [email protected].

Skills Required

  • At least 7 years of total QA experience, including end-to-end quality ownership
  • At least 2 years of hands-on Web3 testing experience involving blockchain integrations, wallet flows, or decentralized systems
  • Strong understanding of manual testing methodologies and defect lifecycle
  • Familiarity with blockchain fundamentals, including transactions, gas, confirmations, and RPC endpoints
  • Experience validating APIs using Postman or similar tools
  • Proficiency with Jira or similar bug-tracking systems and Git or similar version-control systems
  • Comfort using browser developer tools and basic terminal or command-line workflows
  • Strong verbal and written English communication skills
  • Familiarity with AI-powered testing tools
  • Experience testing wallets such as MetaMask, Coinbase Wallet, WalletConnect, or custom wallets
  • Understanding of smart contracts, Solidity basics, or blockchain debugging tools
  • Experience with Playwright, Cypress, or Selenium
  • Knowledge of backend technologies and APIs, including PHP or related languages
  • Experience working in Linux environments and using Bash scripting
  • Hands-on experience with AI platforms used in QA contexts

Xsolla Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Xsolla and has not been reviewed or approved by Xsolla.

  • Fair & Transparent Compensation Pay is considered fair or good in many cases, with mentions of high salary or being paid well in certain roles and markets. Market-aligned ranges for several U.S. roles indicate base pay is not out of step with peers.
  • Healthcare Strength Health coverage is described as comprehensive for full-time employees and families, with employer-paid medical, dental, and vision noted in some U.S. postings. Positive remarks on medical coverage appear on dedicated benefits pages.
  • Leave & Time Off Breadth Flexible or unlimited paid time off is repeatedly highlighted, alongside parental leave and remote or hybrid flexibility. These elements contribute to an overall package that many view as solid.

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The Company
HQ: Sherman Oaks, CA
593 Employees
Year Founded: 2005

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.

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