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Backend Engineer 1More

3.5M JPY - ***M JPY

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Tokyo 3More

Full-time (permanent)

Online Interview: Yes

Remote Work from Overseas: No / Remote Work in Japan: Yes

Top-Selling Points

Rate of Foreigners

Less Than

Frequency of English Usage

Less Than

Remote work Flex-time Involved in upstream processes

Related Skills

Library/Framework

Ruby on Rails React Vue.js

Language Requirements

Required

Preferred

Job Description

[Business Overview]
As a member of the Kanamic Network Group (listed on the Tokyo Stock Exchange Prime Market), we operate three core businesses centered around AI and Ruby.
 ・Development of in-house services for the healthcare and nursing care sectors
 ・Contract development of web services for client companies
 ・Development support for startups

Building on our strengths as a team of Ruby professionals, we are now evolving into a group of AI-native web professionals. At the core of this transformation is the newly established Forward Deployed Engineer Team.

[Recruitment Background]
As we move toward an era where AI-driven development becomes the norm, we are seeking to transform the very nature of development itself. We are looking for AI-native engineers to join us in building a team that stands at the forefront of our clients’ challenges and leverages AI to deliver value quickly.


[Job Description]
You will work closely with clients, tackle their business challenges head-on, and develop systems to solve them.

・Listening to and organizing clients’ business challenges
・Requirement definition and system design
・Rapid development and implementation using AI tools

This role involves more than just building according to specifications; you’ll work with us to identify “what the client truly needs” and bring those solutions to life. In addition to technical skills, we welcome candidates who value the ability to structure challenges and communicate effectively with clients.

[Development Environment]
・AI Tools: Claude, Gemini
・Primary Programming Language: Ruby
・Framework: Ruby on Rails
・Databases: MySQL, PostgreSQL, etc.
・Cloud Services: Amazon AWS
・Development Tools: Git, Docker

[Project Characteristics]
Duration:
Approximately 3 months to 3 years. Most projects last around 1 year.
Since each developer is typically assigned to a single project, you will be able to engage deeply in service development.

Project Examples:
・Development of cloud services for healthcare and nursing care for our group company, Kanamic Network Co., Ltd.
・Projects conducted in English for our subsidiary in Singapore, etc.
We provide comprehensive development support from requirements definition through to development, covering the entire development lifecycle.


【Work Environment】
・Hybrid Remote Work: You will work in the office or from home depending on the nature of the work.
　*Please note that remote work from overseas is not available.
・Flexible work hours available
・Business casual dress code
・Employees from all age groups are active: 27% in their 20s, 42% in their 30s, 25% in their 40s, and 6% in their 50s
・Promotion of AI Adoption
　We have introduced tools such as Gemini and Claude Code to improve productivity
・Language Used: All internal and external meetings, specifications, and other documents are in Japanese

【Status of Foreign National Employees】
・Nationalities: Vietnam, China, Italy

【Career Paths】
・Path 1: Management: Junior, Mid-level, Senior, Leader, Manager
・Path 2: Specialist: Tech Lead, CTO

【Performance Evaluation System】
Evaluations are conducted twice a year. We have established a proprietary evaluation system tailored for professionals in specialized roles.

Required Skills and Experiences

[Required Qualifications: Development Skills] ・At least 3 years of experience in the upstream phases of development (requirements definition/design). 【Required Qualifications: Soft Skills】・Japanese Language Proficiency Test (JLPT) N2 or higher. ・Must be a resident of Japan. 【Preferred Qualifications】・Backend technologies such as Ruby on Rails. ・Frontend technologies such as React or Vue.js. ・Database/network technologies. ・Web security technologies. ・English proficiency.

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Working Condition

[Employment Type]
Permanent employee. Probation period: 6 months.

[Work Location]
・Tokyo Office: Ebisu Garden Place Tower 31F, 4-20-3 Ebisu, Shibuya-ku, Tokyo
・Sendai Office: Oak Tree Tsutsujigaoka 602, 3-4-18 Tsutsujigaoka, Miyagino-ku, Sendai, Miyagi Prefecture
・Osaka Office：7F Resorttrust Midosuji Bldg., 4-14-3 Nishitenma, Kita-ku, Osaka-shi, Osaka 530-0047, Japan
・Fukuoka Office: Hakata Ekihigashi Ozaki Building 402, 501, 1-16-7 Hakata Ekihigashi, Hakata-ku, Fukuoka

*You will be required to come to the office as needed for business purposes.
*Please be advised that we cannot accommodate remote work from overseas locations.

[Expected Annual Salary]
・¥3,500,000 and ¥6,000,000.
・Allowances: You'll receive allowances for overtime, position, and family.

[Working Hours]
・Flextime System (*core hours from 10:00 AM to 3:00 PM.)

[Benefits and Welfare]
Employee Benefits Club / Book Purchase Assistance / Exam Fee Coverage for Qualification Acquisition, One-Time Payment upon Passing / Commuting Expense Reimbursement (Up to ¥40,000)

[Holidays and Leave]
Two-day weekend system (Saturdays, Sundays, and national holidays) / Paid leave / Bereavement leave / Summer vacation / Winter vacation, etc.

RECRUITMENT PROCESS

1. Document screening
2. Initial interview (online)
3. Final interview (online)
4. Offer of employment
5. Offer interview

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