Web Developer (ReactJS)

  • Tokyo
  • Partial Remote
  • Full-time
  • January 19, 2024
6,000,000 - 8,000,000 JPY /yr
Apply from Anywhere 👍
Relocation to Japan 👍
(Overseas visa sponsorship supported)
Language Requirements
Japanese: Not Required 👍
English: Fluent
Minimum Experience
Junior or above

What you’ll bring


  • 3+ years of software engineering experience with a Bachelor's degree.

  • 2+ years of experience with React front-end and back-end.

  • Product and web design experience.

  • Experience with cloud services.

  • Experience with node.js, Express, and REST APIs.

  • Ability to write testable, scalable, and efficient code.

  • Excellent interpersonal communication skills, team collaboration, and organizational skills.

  • Highly adaptive, self-starter, creative problem solver.

  • Fluency in English, both spoken and written.

  • Living in Japan (We provide Japanese work visa sponsorship).


  • Experience with wireframe tools.

  • Understanding of Web3 and Ethereum.

  • Experience with Firebase/Google Cloud Platform.

  • Japanese proficiency.

What you’ll do

We're hiring a full-time, full-stack web developer to join our software engineering team. As an engineer, you’ll be working with our team on continuing to develop our website’s front-end and back-end. We’d also like you to have a knack for design and experience with UI/UX. You should also be able to effectively communicate and work well within the team regarding web development.

In addition, we want you to bring your creative mind and entrepreneurial spirit. You will have the opportunity to support other aspects of the company, such as business development, marketing, or product design. As an early employee, you'll be integral to shaping the company's future direction.

Our team communicates in English, but knowing Japanese is a plus. We prefer you to be living in Japan, but are open to international applicants and will assist with a Japanese work visa sponsorship and travel.


  • Competitive salary package

  • Social insurance

  • Work-related expenses

  • Creative, collaborative, and supportive work environment

  • Flexible work hours/arrangements


  • There is a 6 month contract period before converting to full-time employment.

  • We are currently based in the Daikanyama area of Tokyo.

Callback is a one-stop platform for NFT communities. Our mission is to help create stronger and more engaged communities.

Callback makes managing NFT communities easy by providing a powerful, interoperable, no-code NFT toolkit. Core tools include NFT creation and distribution, token-gated forms, raffles, and voting. Callback also provides a lightweight mobile wallet to help new users collect their first NFTs (gasless) and connect to Dapps with ease.

We've helped brands like Suntory, AMBUSH, WIRED, ANA NEO, Mitsubishi Estate, Shibuya City and Digital Garage create NFT solutions to enhance their communities.

Our team (currently 10) have graduated from Stanford and Harvard and have worked at companies like Palantir and Meta. We're backed by Sozo Ventures, gmjp, Digital Garage and angels including Keisuke Honda and Justin Waldron.

View Callback's company page

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Web Developer (ReactJS) at Callback