Browser Extension Developer (React) (Remote)

Remote   |   Full Time

We're looking for an experienced software developer to join us.

About us

COING is a product-based software company, with an office in San Francisco. The company was founded in 2009 and is run by experienced developers.

The company is focused on creating products that are used by millions around the world. Our most successful products include Clockify (time tracking app) and Pumble (team chat app).

What we provide

  • Relaxed and strongly result oriented environment
  • 22 days of vacation
  • Flexible working hours
  • Private health insurance
  • Private dental insurance
  • Trainings
  • Unlimited free drinks
  • Equipment: Multiple screens and a laptop (MacBook Pro M1, 16GB RAM)


  • Implement new features and integrations for our browser extensions
  • Maintain internal and public codebases, administer pull requests, and schedule code releases
  • Maintain and improve CI/CD pipeline
  • Ensure cross-browser compatibility
  • Ensure the technical feasibility of UI/UX design
  • Solve customer-facing issues


  • Minimum 3+ year experience in software development
  • Minimum 3+ year experience with JavaScript
  • Minimum 2-year experience with React
  • Excellent understanding of browser components (LocalStorage, Service Workers, Event loop, caching mechanisms)
  • Familiarity with newer specifications of EcmaScript
  • Familiarity with RESTful APIs
  • Knowledge of modern authorization mechanisms, such as JSON Web Token
  • Familiarity with modern front-end build pipelines and tools
  • Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
  • Ability to understand business requirements and translate them into technical requirements
  • A knack for benchmarking and optimization
  • Familiarity with Git
  • Ability to work in CET timezone
  • Fluent in Ex-Yu languages (Serbian, Bosnian, Croatian, Montenegrin)

Nice to have

  • Professional experience with Chrome Extension API
  • Familiarity with WebSocket API

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