Senior QA Engineer (Web3 Applications & Infrastructure)

XSOLLA KL SDN. BHD.; Kuala Lumpur; On-site; MYR 60,000 - 90,000; Full time

Job summary

A technology company in Kuala Lumpur is seeking a Senior QA Engineer to lead manual testing of Web3 applications and infrastructure. You will validate blockchain interactions, collaborate with engineers, and mentor junior QA engineers to promote quality ownership. Ideal candidates will have experience in testing decentralized systems and a strong understanding of blockchain technology. Competitive compensation and opportunities for growth are offered.

Qualifications

• Experience in manual testing for complex Web3 applications.
• Familiarity with blockchain technology and smart contracts.
• Ability to create detailed QA documentation.

Responsibilities

• Lead manual testing of Web3 features across environments.
• Validate blockchain interactions and multi-chain compatibility.
• Mentor junior QA engineers and promote quality ownership.

Skills

Manual testing of Web3 features

Blockchain interactions validation

Jira usage

Test case creation

Performance testing

Collaboration with engineering teams

Tools

Jira

CI/CD tools

Job description

Senior QA Engineer (Web3 Applications & Infrastructure)

• 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