• Full-time

Publication date: 2026.07.22

Data Scientist (Fully Remote / Full Flex-Time / High Salary)

  • R&D / Engineer /Technician (AI, Data)
  • Tokyo
  • Salary 5,000,000 円 - 12,000,000円
【フルリモート・フルフレックス・高収入】データサイエンティスト
職種Position R&D / Engineer /Technician (AI, Data)
会社概要Company profile We provide AI and mathematical optimization solutions that enable organizations across various industries to apply advanced technologies to real-world operations.
Many operators of critical infrastructure face challenges such as labor shortages, reliance on specialized individual expertise, cost reduction, and CO₂ emissions reduction. By deeply understanding these challenges, we help customers simulate multiple operational scenarios, visualize analytical results, and make optimal operational decisions while reducing costs.
Major clients include:
• Electric utility companies
• Logistics companies
• Manufacturing companies
• Real estate developers (IoT)
仕事内容Job description As a Data Scientist, you will lead projects that solve complex business challenges using AI and mathematical optimization technologies.
Example projects include:
• AI solutions for power supply and demand optimization
• AI solutions for vessel scheduling optimization
• Time-series forecasting and anomaly detection using sensor data
• Human mobility analysis and simulation using location data
Depending on your experience and interests, your responsibilities may include:
• Collecting, cleaning, visualizing, and analyzing data to solve customer challenges
• Designing and implementing machine learning models and preparing analytical reports
• Developing simulation models
• Providing technical training and mentoring for internal data scientists
• Participating in technical discussions for the development of our SaaS products

Why Join Us
Our engineering organization brings together:
• Ph.D. holders in Physics, Mathematics, and Engineering
• Industry experts from heavy industry and manufacturing companies
• Computer science specialists
• Professionals with over 20 years of practical experience in mathematical optimization
This multidisciplinary team enables us to deliver flexible and reliable solutions tailored to each customer’s unique requirements.
You’ll also benefit from:
• Extensive project experience across multiple industries
• Strong customer network
• Continuous learning opportunities through expert advisors and cutting-edge technology training
• Full remote work, full flex-time, and a collaborative culture that gives engineers significant autonomy
応募資格Requirement Required
Candidates must have experience in at least one of the following:
• Experience applying AI technologies such as machine learning or reinforcement learning (project duration is not important; experience in two or more projects is preferred)
• Knowledge and practical experience with mathematical optimization algorithms
• Experience developing simulation models and a solid understanding of AI technologies

Preferred
• Strong performance in data science competitions such as Kaggle
• Japanese proficiency at JLPT N2 level or above (for non-Japanese candidates)
• Software engineering experience
• Experience developing applications in cloud environments such as AWS
日本語力Japanese level Business
雇用形態Employment type Full-time
勤務エリアLocation Tokyo
勤務時間Working hours フレックスタイム制(コアタイムなし)※試用期間中も適用
想定年収Salary 5,000,000 円 - 12,000,000円
条件・待遇Condition Annual Salary
JPY 5,000,000 – 12,000,000
Compensation will be determined based on experience, skills, and qualifications.
Salary Structure
Annual compensation consists of:
• Monthly salary × 12 months
• Performance bonus
Monthly Fixed Salary:
JPY 370,301 – 890,699
Breakdown:
• Base Salary: JPY 278,195 – 669,191
• Fixed Overtime Allowance: JPY 92,106 – 221,508 (Equivalent to 42 hours of overtime per month)
Bonus
Performance-based bonus paid twice annually (February and August), based on performance evaluations and company results.

Working Hours
• Flexible working hours (No core hours)
• Applies during the probation period as well

Employment Conditions
• Probation Period: 6 months (no changes to salary or benefits)
• More than 120 annual holidays
• Two days off per week (Saturday and Sunday)
• Japanese national holidays
• Year-end/New Year holidays (December 29 – January 3)

Benefits
Social Insurance
• Health Insurance
• Employees’ Pension Insurance
• Employment Insurance
• Workers’ Compensation Insurance
Leave
• Annual Paid Leave
• Refresh Leave (3 days)
• Maternity Leave
• Childcare Leave
• Family Care Leave
• Other special leave
FY2024 Childcare Leave Utilization
• Male Employees: 71%
• Female Employees: 100%

Employee Benefits
Hybrid Work Style
Employees may freely choose between working remotely and from the office, depending on what allows them to perform at their best.

Access to the Latest AI Technologies
For All Employees
Business licenses for:
• Gemini
• NotebookLM
are provided to improve productivity.
For Engineers
Business licenses are provided for leading AI development tools.
Choose freely from:
• Cursor
• Claude Code
• Codex
• Devin
Multiple tools may be selected, and choices can be changed monthly.

Professional Development
Technical Book Support
The company purchases technical books that contribute to individual and team growth.

AI Learning Program
No prior AI experience is required.
Hands-on training programs help employees acquire the AI skills necessary for their work.

Communication
Slack is used as our primary communication platform, enabling fast and open collaboration.

Optional Company Events
Employees may voluntarily participate in activities such as:
• Futsal
• Hiking
• Fishing
• Engineering retreats
• Hands-on technical workshops

Career Development
While we do not offer the large-scale corporate training systems found at major enterprises, we provide a highly personalized development environment.
As a growing company where leadership knows every employee personally, management actively discusses each employee’s career development, recognizes individual strengths and backgrounds, and provides meaningful opportunities for long-term professional growth.
選考についてProcess Document Screening
→ First Interview
→ Programming Test
→ Final Interview
→ Offer
The interview process, number of interviews, and assessment methods may change depending on the position and hiring circumstances at the company’s discretion.
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