Jobs / Backend Engineer - Golang
Jobs at CTW Inc.

Backend Engineer - Golang

CTW Inc. Tokyo
EN: business
JP: business
Employment Type
Full time

Job Description

As a Backend Engineer (Golang), you will be responsible for designing and implementing efficient and scalable systems, building and maintaining our core services, and collaborating with cross-functional teams. You will be an integral part of our web-based game platform as the G123 platform grows its portfolio of games and expands globally. 


  • Design and implement backend services using Go and related technologies
  • Write clean, maintainable, efficient and scalable code
  • Collaborate with other team members to identify and solve complex problems
  • Participate in code reviews and ensure adherence to development best practices
  • Contribute to the development of our technical roadmap and architecture


  • Bachelor’s degree in Computer Science, Computer Engineering, Electrical Engineering, Mathematics or a closely related computer technical field
  • Fluency or understanding of Go programming
  • Understanding of database systems (RDBMS or NoSQL)
  • Can use Docker and Kubernetes for application development and deployment
  • Self-driven to solve problems
  • Good communication, teamwork, inter-team collaboration

Good to have

  • Experience in Golang projects development
  • Database system development experience
  • Knowledge of Unix/Linux environment
  • Can adapt to fast-paced coding and sprints

Language Requirements

  • Can work in Chinese OR Japanese OR English
  • Can read and understand technical documents in English

About the Company

Founded in 2013, CTW is Japan’s No.1 browser game company. Our primary service is the G123 IP game platform — which publishes video games based on famous Japanese IP.

We’ve been experiencing steady growth in revenue in the past few years as our player base has exploded to over 50 million users worldwide.

We must grow quickly to keep up with market demand.

Our CEO founded and named this company with the aspiration to "Change the World." As a fast-growing startup, we hope our team will drive themselves to try new things and accelerate their careers to match the rapid expansion of the company.

Our core values are
- ambition
- drive
- simplicity

With global hits like Vivid Army, Queen's Blade, and many more, we’re looking to go from a market leader in Japan to an industry leader globally!


  • Visa support
  • Free lunch catering and early-bird breakfast
  • Free in-office Starbucks, coffee, tea, beverages, snacks, sweets, & vitamins/supplements
  • Modern office space in the heart of Tokyo, with views of Tokyo Tower and Mount Fuji
  • Industry-leading work-life harmony: overtime is rare and discouraged
  • Commute expenses covered
  • 30,000 yen rent support if you live 2 stops from Roppongi 1-chome or Kamiyacho stations
  • Bonus for continuous employment (50,000 yen/month added to base salary after 5 years of continued employment)
  • Health insurance
  • Diverse & international environment
  • Working hours: 10:00 – 19:00, Monday to Friday (in-office)