QA Engineer Backend
1inch
Employer Active
Posted 9 hrs ago
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Experience
1 - 3 Years
Job Location
Education
Bachelors in Computer Application(Computers)
Nationality
Any Nationality
Gender
Not Mentioned
Vacancy
1 Vacancy
Job Description
Roles & Responsibilities
We are looking for a Dubai based Backend QA Engineer(DeFi/Web3-focused) to own and drive the quality strategy for our DeFI backend systems. This role will involve designing robust test frameworks, validating smart contract integrations, and ensuring performance, security, and reliability across our DeFi protocol integrations. You should be deeply familiar with Web3 architecture, DeFi primitives, and have experience working in high-load environments with a strong focus on test automation.
Responsibilities
Designing, developing, and maintaining automated test suites for APIs, backend services, and smart contract interactions.
Implementing integration, regression, and end-to-end testing strategies for DeFi components.
Creating mocks/stubs for Web3 environments, token behaviours, and smart contract logic to ensure thorough code coverage using static and dynamic analysis tools.
Validating the integration of new DeFi protocols (e.g., AMMs, lending markets) into backend systems.
Analysing and simulating economic behaviours, such as slippage, liquidity depth, and oracle responses.
Testing token standards (ERC20, ERC721, etc.) and smart contract edge cases.
Performing load and stress testing on backend systems that interact with blockchain nodes, while also monitoring latency and transaction throughput.
Identifying performance bottlenecks and working with engineering teams to address them.
Collaborating with the backend team to identify and reproduce issues.
Utilising tools such as Hardhat, Foundry, Tenderly, and The Graph for contract and protocol validation.
Requirements
Work with Docker, Kubernetes, and CI/CD pipelines to ensure seamless QA environments
Prior QA experience in fintech, DeFi, or crypto projects
Experience testing backend services
Enterprise-oriented mindset with a focus on structure, scalability, and quality
Comfortable working in a Scrum-based, agile environment
Strong sense of ownership and proactive communication in distributed teams
Skills
Experienced in testing systems that interact with Ethereum nodes (e.g., Geth, Infura)
Automated testing tools in Web3 (e.g., Hardhat, Foundry, Chai, Mocha)
Strong skills in test automation
Integration of De-Fi Protocols into backend systems
Proficient in testing micro-services architectures and asynchronous systems using message brokers like Kafka or NATS
Familiarity with DeFi primitives (e.g., Uniswap v2/v3, Compound, Aave, Curve)
Company Industry
Department / Functional Area
Keywords
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