This position is closed and is no longer accepting applications.

Backend Engineer (Python)

CTW Minato-ku, Tokyo
  • 💴 ¥6M ~ annually
  • 🏢 No remote
  • 🧪 1+ years experience required
  • 💬 No Japanese required
  • 🌏 Apply from abroad
  • 🧳 Relocate to Japan

About CTW

CTW Minato-ku, Tokyo

We are Japan’s No. 1 IP game platform company, specializing in creating and distributing browser games. Join us and become part of a passionate tech team working on building cutting-edge technologies in the gaming industry.

Key benefits

  • Creative freedom for developers
  • Feel your contribution
  • We rely on motivation 3.0

About the position

As a Backend Engineer (Python), you will be responsible for designing and building data pipelines with Python to extract data from various advertising platforms to support business requirements. You will be an integral part of increasing the number and quality of users as the G123 platform grows its portfolio of games and expands globally.


  • Build end-to-end API, ensuring its the security, reliability and performance
  • Development of the advertising deploying process
  • Management of operational tasks


  • 1+ year experience in Python, or other programming languages
  • Interest in API or data pipeline design
  • Knowledge of software engineering and best practices (coding standards, code reviews, source code control, process building, testing, operations)
  • Strong DevOps focus
  • Self-driven to solve problems
  • Good communication, teamwork, inter-team collaboration

Nice to haves

These aren’t required, but be sure to mention them in your application if you have them.

  • Knowledge Agile principles
  • Git and GitFlow practices
  • Scala, Flask, FastAPI
  • Understanding of front-end technologies and platforms (JavaScript, HTML5, CSS3)
  • Can adapt to fast-paced coding and sprints


Your compensation will be determined based on your experience as well as the whole interview process. Our salary range is as follows:

  • Level 1: 6-9M JPY
  • Level 2: 8-12M JPY
  • Level 3: 10-33M JPY

The first level is for individual contributors (junior positions), while the last level is for senior and management positions.

Hiring Process

  1. 1

    Web test

    You’ll take an online test via HackerRank. If we think you’re an exceptional match, we may skip this step.

  2. 2

    HR interview

    This is a friendly conversation with one of our recruiters where we’re checking that your general vibe matches, and answer any questions you might have.

  3. 3

    Technical screening

    The technical screening typically is two rounds of interviews, followed by an interview with the CTO.

  4. 4

    HRD Interview

    The final interview while be conducted with our Head of HR. You can ask questions, negotiate the salary and talk about the next steps.

  5. 5


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