Backend Engineer – 7M-12M, hybrid work, Overseas applications accepted


Job Overview

  • Employer Type Recruiter / Dispatch / Temp Agency
  • Industry Internet
  • Salary ¥7,000,000 - ¥12,000,000 / Year
  • English Level Business Level
  • Japanese Level Business Level
  • Restricted to Domestic Applicants? Overseas applicants allowed
  • Visa Sponsorship Yes

Job Requirements

  • Japanese language proficiency: N2 or above (text communication + business conversation will be based on Japanese)
  • Experience in developing and operating web applications with Python web frameworks (Flask, Django, etc.): 3 years or more
  • Experience in network design, construction, operation, and maintenance
  • Knowledge and working experience of Linux
  • Experience in designing, building, and operating systems/infrastructure on cloud such as AWS
  • Experience in database design and operation using RDBMS
  • Experience in designing APIs such as REST and GraphQL
  • Experience in team development using version control system such as Git/GitHub

Welcome Skills and Experience

  • Experience leading projects and teams
  • Experience in technology selection and architecture design
  • Knowledge of web application security
  • Experience in DB performance tuning
  • Experience in implementation of infrastructure environment using Terraform, etc.
  • Knowledge of payment systems and development experience


・PythonのWebフレームワーク(Flask、Djangoなど)でのWebアプリケーションの開発、運用経験 3年以上〜



Job Description


As our business expands, the number of products we develop is rapidly increasing, and the current size of our product development team is no longer sufficient to ensure the quality of our products.

We are looking for an engineer who has a passion for manufacturing and can brush up product development from a holistic point of view with us.

Specific development work

  • Back-end development of abceed, an AI English learning application
  • Back-end development of abceed for school, a flipped learning platform

About *abceed

abceed is an AI English learning application with more than 800 popular English learning materials and over 30 rich learning functions such as word study and question practice. By utilizing the characteristics of a learning platform, abceed provides not only educational material content, but also online mock tests and an online school for professional English coaches that utilize abceed's learning content and technology. We have achieved the fusion of these educational infrastructures, which were previously disparate.

◎Many media coverage! Please read when you have time!

Annual income: 7 million yen to 12 million yen / Monthly income: 430,000 yen to 750,000 yen
*Bonus: 4 months of base salary, determined in consideration of performance and work results
*Fixed overtime pay (20 hours/month) is available.


1. Being involved in the development of our own products while making the most of your experience

The small number of elite members in our organization allows us to communicate closely with each other, which results in fast decision-making and development.

Many of our engineers have led various products, large and small, and can work smoothly on projects with members who have a wealth of experience and knowledge. 2.

2. Work on development from the planning stage

You will be able to make the most of your experience and work on development with a great deal of discretion. In addition, as mentioned above, there are plans to implement new functions in the English conversation area and other areas in the future, making it possible to work on development in new technologies and areas and to be involved in 0 → 1 or 1 → 10 service development.

3. Involvement in organizational development

With the rapid growth of the company, it is also a good time to focus on the organization of engineers. Therefore, you can eventually take on a position as a tech lead, create a smooth development environment, and be involved in the creation of the organization from the very beginning.

In addition...

  • Morning meeting every morning at 11:00 a.m. to review tasks and report on progress
  • Bi-weekly review (discussion of topics or KPT)
  • Wide range of technologies and opportunities to get in touch with technologies you are interested in



我々にとって質の高いプロダクトを提供することの重要性は非常に高く、今後も質を落とすことなくプロダクトの開発を行うべく、ものづくりへの情熱を持ちながら全体的な観点からプロダクト開発を 一緒にブラッシュアップしていけるエンジニアの方を探しております。

AI英語学習アプリ abceed のバックエンド開発
反転学習プラットフォーム abceed for school のバックエンド開発

人気英語教材800冊以上を掲載し、単語学習、問題演習など30種類以上の豊富な学習機能のあるAI英語学習アプリです。学習のプラットフォームという特性を活かして教材コンテンツだけでなく、オンライン模試の受験や、abceedの学習コンテンツ・テクノロジーを活用した専門英語コーチのオンラインスクールの提供なども含め、従来バラバラであった「教材コンテンツ」「テスト」「学習ツール」「スクール(学校)」 これらの教育インフラを融合を叶えています。



1. 経験を活かしながら自社プロダクトの開発に携われる




2. 開発に企画段階から取り組むことができる



3. 組織作りに携わることができる




隔週で振り返りを行います(トピックスの議論 or KPT)




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Company Information

Company Profile

Provide Opportunities to People Around the Globe Jellyfish Group’s main fields are language education and the recruitment of international talents. We offer comprehensive support from the Japanese language and overseas education in Asian countries, to... read more about JELLYFISH, INC
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Contact Us

Tokyo Office
C/O Global Village Media
1-7-20-B2 Yaesu, Chuo-ku, Tokyo
[email protected]