About this role.
This is a full-time QA Engineer role focused on end-to-end testing of blockchain products and DApps. The engineer will cover functional, performance, security, browser, and automated testing while participating in requirements and architecture reviews. The role requires hands-on experience with public-chain testing, Ethereum-related ecosystems, smart-contract testing tools such as Hardhat and Foundry, and Python or Golang. The successful candidate will help build automation tooling and a scalable blockchain testing framework, with performance, chaos engineering, and stability-testing experience viewed as strong advantages.
Role DNA
A quick view of the complexity, pace, ownership and collaboration implied by the job description.
Job Complexity
4/5Pace & Pressure
4/5Autonomy Level
4/5Communication Load
4/5Salary analysis
Estimated compensation compared with the broader US market for similar roles.
Core skills
Skills and capabilities most closely associated with this opportunity.
Sample interview questions
I would map critical user journeys across the UI, wallet integration, smart contracts, indexing services, and backend APIs. I would combine deterministic local or testnet environments with automated functional, integration, regression, performance, and security tests, while validating on-chain events, transaction status, balances, and failure paths.
I use these frameworks to deploy contracts in isolated environments, create repeatable fixtures, impersonate accounts where appropriate, test access controls and revert conditions, and validate emitted events and state transitions. I also include edge cases such as incorrect parameters, replay-sensitive flows, gas-related constraints, and upgrade or migration scenarios.
I would first capture the transaction hash, request payload, wallet and network context, contract version, node responses, and relevant application logs. I would then determine whether the issue originates in client signing, RPC behavior, nonce or gas handling, contract reverts, indexing lag, or network congestion, and create a minimized automated reproduction before proposing a fix.
I define realistic workloads such as concurrent transaction submissions, RPC reads, wallet connections, and event-processing volume, then establish latency, throughput, error-rate, and confirmation-time targets. For stability, I introduce controlled failures such as node delays, RPC outages, indexer lag, and dependency restarts to assess resilience, observability, recovery behavior, and data consistency.
I ask for explicit acceptance criteria, observable outcomes, error handling, permissions, state transitions, dependency assumptions, and nonfunctional targets. I identify ambiguous or untestable requirements early, recommend test hooks and logging, and translate risks into a practical test plan with clear automation coverage and release gates.
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.
主要职责：
负责区块链产品的功能、性能、安全、自动化等测试工作，参与项目研发全流程
参与项目的需求分析，关注项目需求的合理性，可测性；参与重大产品需求和架构设计评审，保证产品设计与架构的合理性
编写自动化用例、测试工具及平台等，提升测试质量及效率
深入了解区块链相关知识，参与研究并攻克区块链测试领域的关键技术挑战，建立区块链的测试体系
DApp测试，包括功能测试、性能测试和安全性测试
浏览器测试，对于支持区块链技术的浏览器有一定的了解，能够进行相关的测试工作
职位要求：
计算机科学、软件工程等相关专业，本科及以上学历；
具有2年以上的区块链测试开发经验，有DApp测试经验
熟悉hardhat、foundy等智能合约测试工具
熟悉python、golang等编程语言，具备良好开发习惯
熟悉主流自动化框架如unittest和go test，有落地过自动化测试项目的经验
独立搭建过性能稳定性专项加分，能针对不同业务场景进行压测设计，能基于混沌工程原理搭建稳定性测试
熟悉Ethereum或其他公链项目，有资深的公链测试经验
Key Responsibilities
End-to-End Testing: Responsible for functional, performance, security, and automation testing of blockchain products, deeply participating in the entire project R&D lifecycle.
Requirement & Architecture Review: Participate in project requirement analysis, focusing on feasibility and testability; take part in major product requirement and architecture design reviews to ensure the rationality of product design and architecture.
Efficiency & Automation: Write automation test cases, develop testing tools, and build test platforms to enhance overall testing quality and efficiency.
Blockchain Testing Framework: Maintain a deep understanding of blockchain-related knowledge; research and overcome key technical challenges in blockchain testing to establish a comprehensive blockchain testing ecosystem.
DApp Testing: Conduct thorough testing for DApps, including functional, performance, and security assessments.
Browser Testing: Maintain a solid understanding of blockchain-supported web browsers and execute related testing tasks.
Requirements
Education: Bachelor’s degree or above in Computer Science, Software Engineering, or a related field.
Experience: 2+ years of experience in blockchain test development, with hands-on experience in DApp testing.
Tools: Familiar with smart contract testing frameworks such as Hardhat and Foundry.
Languages: Proficient in programming languages such as Python and Golang, with good coding practices.
Automation: Familiar with mainstream automation frameworks (e.g.,
unittest,go test) with proven experience in successfully implementing automation testing projects.Performance & Stability (Bonus): Experience in independently setting up performance and stability testing initiatives is a strong plus. Ability to design pressure tests for different business scenarios and build stability testing based on Chaos Engineering principles.
Domain Knowledge: Familiar with Ethereum or other public chain projects, with extensive experience in public chain testing.
Annual salary information is not provided for this position. Explore salary ranges for similar roles in our Salary Directory ›
Upload your resume now
- To unlock remote work opportunities and be discovered by global employers.
This job listing has been manually reviewed by the Jobicy Trust & Safety Team for compliance with our posting guidelines, including verification of the company's legitimacy, accuracy of job details, clarity of remote work policy, and absence of misleading or fraudulent content.
