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Nexus.xyz

Software Development Engineer in Test

NEW
Remote (Argentina)ContractorGlobal
šŸ“Š JunioršŸ  Remote
RemoteRemote work position availableActivePosted within the last 30 days

Job Description

[AI-summarized by JobStash]

You will build and maintain automated test suites for backend services written in Node.js and Rust. You will design and run integration and end-to-end tests that cover trading flows, settlement logic, and on-chain verification. You will create test cases for APIs, data pipelines, and distributed system components, and help implement CI/CD pipelines to automate testing and deployment validation. You will write performance and regression tests to ensure reliability under high load, debug and reproduce issues across services, and work with engineers to resolve them. You will also contribute to improving test coverage, observability, and overall quality standards across the codebase.

Requirements

  • ā—1ā€“2 years of experience in software development or QA automation (internships or academic projects count)
  • ā—Experience writing automated tests using JavaScript, TypeScript, or Rust
  • ā—Familiarity with testing frameworks such as Jest, Mocha, Playwright, or Cypress
  • ā—Basic understanding of APIs, databases, and backend systems
  • ā—Strong problem-solving skills and attention to detail
  • ā—Excellent Business English communication skills (spoken and written)
  • ā—Eagerness to learn about distributed systems, financial infrastructure, and blockchain technology

Responsibilities

  • ā—Develop and maintain automated test suites for backend services written in Node.js and Rust
  • ā—Build integration and end-to-end tests covering trading flows, settlement logic, and on-chain verification
  • ā—Design test cases for APIs, data pipelines, and distributed system components
  • ā—Implement CI/CD pipelines to automate testing and deployment validation
  • ā—Write performance and regression tests to ensure reliability under high-load conditions
  • ā—Debug issues across services, reproduce bugs, and collaborate with engineers to resolve them
  • ā—Improve test coverage, observability, and quality standards across the codebase

Tech Stack

GitHub Actionsperformance testingPlaywrightintegration testingsettlementJestdata pipelineEnd-to-end testingRegression testingCypressproject:Nexus Laboratories, Inc.
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