Application Guide | Employment Information | Colorkrew


RECRUIT Job opening type

Full Stack Engineer

Job Description

"Colorkrew Biz" is to reduce unproductive work though QR code and app.
Using QR and authentication technology, you can easily manage seats, schedule appointments, manage company equipment, and send mail.
"Goalous" is an internal social networking service that improves teamwork by sharing team members' activities and goal progress.
Colorkrew is also developing various other services.
We are looking forward to further evolving these services and developing new features.

Our Tech Blog


  • Collaborate with product managers, designers and engineers to deliver high-quality frontend components and backend services
  • Participate in and contribute to the planning processes to design products that fit within business and technical constraints
  • Respond quickly and independently to the rapidly changing needs of users
  • Develop and optimize both backend and frontend service and infrastructure


  • Experience in mid- to large-scale service development and operations including infrastructure (more than three years)
  • Whole system architecture design (more than three years)
  • Development and operation experience in a cloud or virtual environment
  • Experience developing systems using server side languages (C++, PHP, Ruby, Java, Python, Go, etc.) (more than three years)
  • Experience in design and operation of database infrastructure (SQL Server, MySQL, PostgreSQL, NoSQL) (more than three years)
  • Excellent communication skills in English (fluent or native level English. Japanese is not required)

Preferred qualifications

  • Experience in a technical leadership role leading project teams and setting technical direction
  • Experience working in a complex, matrixed organization involving cross-functional, and/or cross-business projects


  • 5M-8M yen (Based on performance)
  • Salary revision twice or more a year
  • Trial period: (same conditions) 3 months
    (There will be real-time opportunities for advancement during the first six months.)

Working Hours

Flextime (Core time 10:00 to 14:00)


Full five-day work week (Saturday & Sunday off), public holidays, summer and winter holidays, annual paid leave, special leave
Various insurances
VISA Support
Relocation support
Company provides a computer
Indoor principle non-smoking (smoking room available)

Selection Process

  1. Document screening
  2. Coding challange
  3. Coding session
  4. Technical interview (several rounds possible)
  5. Final interview with CEO
  • The above are subject to change depending on circumstances.


Japanese Site

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