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Full Stack Engineer 2More

5M JPY - ***M JPY

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Tokyo

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 Use English Start-up International employees In-house product development

Related Skills

Library/Framework

Vue.js Django

Programming Language

Python

Cloud / Infrastructure / DevOps tools

AWS Docker

Language Requirements

Required

Preferred

Job Description

【Job Description】
We are looking for a results-oriented and highly motivated full-stack developer to join our team. As a software engineer, you will be responsible for developing core features of our product. While working on assigned projects and tasks, you will have a certain degree of autonomy in product development.

Our team is composed of members ranging from junior to senior levels, and we place strong value on continuous learning and collaboration. All engineers support each other through daily work and growth opportunities.
English is used for daily communication, making this an ideal workplace for those looking to improve their communication skills through work.

We are seeking individuals who can fully leverage their abilities and share our passion for transforming society through technology.

【Responsibilities】
⚫ Work as a member of the Software Engineering Team to address the growing needs of Japanese clients and markets.
⚫ Main responsibilities include developing and optimizing new features in existing software and supporting the implementation of algorithms developed by the Data Science Team.
⚫ Secondary responsibilities include maintaining the AWS-based infrastructure and handling inquiries from internal departments (mainly Sales and Data Science) regarding applications and infrastructure.

【Team Structure】
⚫ You will be part of our U.S.-based Software Engineering Team, which includes members from both the U.S. and Japan offices. Slack is used for daily communication, and weekly engineering meetings are held.
⚫ Most communication takes place in the morning Japan time (evening U.S. West Coast time), so there is no need to align your working hours with U.S. time.
⚫ All current team members work remotely, but a hybrid work style using the Tokyo office is also available.
⚫ While most employees work remotely, occasional business trips to the Tokyo HQ or to the U.S. Silicon Valley headquarters may occur for meetings.
⚫ Our team is diverse, consisting of members of various ages, genders, and nationalities, including Japan, the U.S., and South Korea.

【Language Environment & Team Composition】
⚫ Both English and Japanese are used within the company. All communication within the engineering team is conducted in English, while communication with Japan-based staff is primarily in Japanese. (Usage ratio: English 60%, Japanese 40%)
⚫ Of our 15 total employees, about half are engineers, including 4 foreign nationals.

【Career Path】
⚫ We value individual ability, and advancement opportunities are available regardless of age or gender.
⚫ In addition to our core business of water infrastructure deterioration diagnostics, there are opportunities to tackle broader social infrastructure issues such as water treatment, sewage, and gas.
⚫ Depending on your preferences, future relocation to the U.S. office may also be possible.

【Ideal Candidate Profile】
⚫ Proactive and self-driven — able to think and act independently
⚫ Comfortable working in a small, agile team with autonomy and responsibility
⚫ Eager to test hypotheses and engage in trial and error
⚫ Flexible in handling both frontend and backend development
⚫ Motivated to tackle social issues and contribute to society through technology

【About Fracta Japan】
Fracta, the parent company of Fracta Japan, was founded in Silicon Valley, U.S., in 2015. The company develops AI-based solutions to address the increasingly visible issue of aging social infrastructure, providing machine learning services to predict leakage risk in water and gas pipelines.

In 2019, Fracta Japan was established to expand operations in Japan. With adoption by over 65 local governments, the company received the Prime Minister’s Award — the highest honor — at the “Infrastructure Maintenance Grand Prize” in January 2025, recognizing outstanding innovations related to critical national infrastructure.

In March 2023, Fracta became a wholly owned subsidiary of Kurita Water Industries Ltd., and is now expanding its business in collaboration with Kurita’s domestic and international network.

Required Skills and Experiences

[Mandatory Requirements] ⚫ Vue.js ⚫ Python ⚫ Django ⚫ Experience in designing and working with large-scale systems and data structures. ⚫ Business-level English proficiency (communication with your direct manager will be in English). ⚫ Business-level Japanese proficiency. ⚫ Understanding of various software engineering patterns. [Preferred Requirements] ⚫ Mapbox, mapping systems, or GIS (Geographic Information Systems) ⚫ Nuxt.js ⚫ Tailwind ⚫ Basic knowledge of AWS and related services (especially EC2, S3, ECS, ECR, and Fargate) ⚫ Docker and related applications ⚫ Experience building and maintaining ETL pipelines

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Working Condition

【Employment Type】
Full-time employee
No fixed term of employment
Probation period: 3 months

【Work Location】
Primarily remote work is expected. Occasional attendance at the headquarters office is possible as needed.
Headquarters: Nakano Central Park East, 4-10-1 Nakano, Nakano-ku, Tokyo 164-0001
Nearest station: Nakano Station
Smoking policy: No smoking indoors (completely smoke-free environment)

【Expected Annual Salary】
JPY 5M – 9M (Based on skills and experience)
Annual salary review based on performance
Bonus may be provided based on company performance

【Working Hours】
Discretionary Labor System for Specialized Work
Deemed working hours: 8 hours/day
Break time: 60 minutes
No overtime
Standard hours: 9:00–18:00 (can be adjusted flexibly due to collaboration with the U.S. headquarters)

【Holidays and Leave】
Full two-day weekend system (Saturdays, Sundays, and national holidays)

10–20 days of paid leave per year (10 days granted after 6 months of employment)

Approx. 120 days off per year

Includes annual paid leave, bereavement leave, etc.

【Insurance】
Health insurance, Welfare pension, Employment insurance, Worker's compensation insurance

【Benefits and Support】
- Full reimbursement for books necessary for research or work
- Full reimbursement for seminars related to research or work
- PC and monitor provided based on individual preference/specifications

RECRUITMENT PROCESS

I. Casual Interview (Interviewer: CEO)
└ Conducted in Japanese

II. First Interview (Interviewer: VP of Software Engineering Team)
└ Conducted in English

III. Assignment Submission
└ A simple task will be provided during the first interview

IV. Final Interview (Interviewers: CEO & VP of Software Engineering Team)
└ Conducted in Japanese

V. Offer Meeting (Interviewers: CEO & COO)

※ We would prefer to conduct either the final interview or the offer meeting in person, if possible. However, online arrangements can be made depending on your location.

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