Senior QA Engineer at Mantle · Web3Vacancy
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Senior QA Engineer

Remote
Market range (est.) $120k–$245k
◆ 6/10 cryptodevweb3QA Engineer
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About this role

Join Mantle as a Senior QA Engineer to test blockchain products and ensure quality in functionality, performance, and security. Work in a remote environment with a focus on automation and blockchain technology.

Description

Who we are

Mantle is the entry point for institutions and traditional finance to access real-world assets on-chain. Backed by the world’s largest community-owned treasury of over $4B, Mantle combines institutional-grade infrastructure with the scale and credibility to bring RWAs into Web3 with confidence. Mantle positions itself as the gateway for institutions and TradFi to move into RWAs on-chain. With $4B+ in community-owned assets, Mantle combines credibility, liquidity and scale with institutional infrastructure to support large-scale adoption. The ecosystem is anchored by $MNT in the Bybit network, and built out through subsidiaries mETH, fBTC, MI4 and MantleX. This is complemented by Mantle Network’s partnerships with leading issuers and protocols such as Agora AUSD, Ethena USDe, Ondo USDY and EigenLayer.
Responsibilities

Your Role

  • Responsible for testing blockchain products' functionality, performance, security, and automation, and participate in the entire project development process.
  • Participate in project requirement analysis, focus on the rationality and testability of project requirements, participate in major product requirement and architecture design reviews, and ensure the rationality of product design and architecture.
  • Write automation test cases, testing tools, and platforms to improve testing quality and efficiency.
  • In-depth understanding of blockchain-related knowledge, participate in research and overcome key technical challenges in the blockchain testing field, and establish a blockchain testing system.
Requirements

Your Craft

  • Bachelor's degree or above in computer science, software engineering, or related majors.
  • More than 2 years of experience in blockchain testing and development.
  • Familiar with testing tools such as Hardhat, Foundy, etc.
  • Familiar with automated testing tools (such as Mocha, Chai, Cypress, etc.) and have experience in implementing automated testing projects.
  • Familiar with JavaScript/Typescript, Python, Golang, Solidity.
  • Familiar with Ethereum or other public chain projects, and have extensive experience in public chain testing.
  • Able to read English documents, have strong research ability and self driven personality.
Job Details
Market range (est.)$120k–$245k
LocationRemote
AI Score★★★★★★☆☆☆☆ 6/10
PostedMay 15, 2026 (58d ago)
Tags & Skills
cryptodevweb3QA Engineerremote
Tech Stack
JavaScriptTypeScriptPythonGolangSolidityHardhatFoundyMochaChaiCypress

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