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Software Engineer


Mercari is Your Marketplace. We make it super easy to sell (or buy) almost anything. We all have things we don’t use, never used or simply outgrew. But that stuff still has value. Mercari gives you the power to simply sell it, ship it, and earn some cash for it. Fashion to toys. Sporting goods to electronics. All the brands you know and love. Our mission is simple: to make selling easier than buying. And with 50M+ downloads in the U.S. and 350k+ new listings every day, we're just getting started.

Our Web Engineering team is growing! We are looking for a Senior Web Frontend Engineer to join the team to accelerate the development of our leading-edge progressive web apps and microservices for the US market using React, GraphQL, Next.js, and Node.js.

What You'll Do

  • Design and lead the implementation of web components
  • Contribute to web platform technology and strategic roadmap decisions
  • Write clean, maintainable, secure, and scalable code with complete test coverage
  • Improve the UX of our web site
  • Drive high standards and best practices within the team
  • Communicate effectively with engineers, product managers, marketing, QA, and other stakeholders within the organization

What You'll Need:

  • 3 years of in-depth experience with Javascript ES6, React.js, and modern CSS
  • Experience managing sites running on Node.js
  • Experience working within Agile development workflows
  • Experience setting up CI pipelines
  • Strong written and verbal English communication skills
  • Basic knowledge of Kubernetes and cloud services

Bonus Points:

  • Experience optimizing Javascript performance on both client and server
  • Experience deploying services to Google Cloud Platform
  • Experience with GraphQL
  • Experience managing Kubernetes clusters

Technologies We Use:

  • React.js
  • Next.js
  • GraphQL
  • Node.js
  • Kubernetes
  • Google Cloud Service


  • Competitive ?medical, dental, and vision insurance options
  • 401k match
  • Life & disability insurance
  • Employee Assistance Program
  • New parent paid leave
  • Rocket Lawyer legal services
  • Fond perks and rewards
  • Time when you need it - unlimited vacation days


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