Fin

Senior Software Development Engineer in Test

Fin

full-time

Posted on:

Location Type: Office

Location: New York CityNew YorkUnited States

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Salary

💰 $125,000 - $250,000 per year

Job Level

About the role

  • Build and own the end-to-end testing framework for our React Native mobile app and Node.js backend
  • Create test environments that simulate high latency, old devices, and offline-mode recovery
  • Leverage AI tools to generate test cases and edge scenarios
  • Optimize deployment pipelines (GitHub Actions) for fast-running tests
  • Build scalable, high-performance services for real money movement with reliability and observability
  • Maintain high code quality through clean abstractions and thoughtful code review

Requirements

  • Deep experience with TypeScript and Node.js
  • Production experience with React Native
  • Comfort configuring pipelines (GitHub Actions, CircleCI)
  • Understand testing for performance, battery drain, and network constrained environments
  • Comfort debugging across the stack from database to front end
  • Solid understanding of security best practices
  • Strong sense of code quality with testing, readability, and maintainability
  • Clear written and verbal communication skills
  • High tolerance for ambiguity in a startup environment
Benefits
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Applicant Tracking System Keywords

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Hard Skills & Tools
TypeScriptNode.jsReact Nativetesting frameworksdeployment pipelinesperformance testingdebuggingsecurity best practicescode qualityAI tools
Soft Skills
written communicationverbal communicationtolerance for ambiguity