• Full-time

Publication date: 2026.07.22

Optimization Engineer (Fully Remote / Flexible Hours / High Salary)

  • R&D / Engineer /Technician (AI, Data)
  • Tokyo
  • Salary 8,000,000 円 - 12,000,000円
【フルリモート・フルフレックス・高収入】数理最適化エンジニア
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 Mathematical Optimization Engineer, you will lead projects that solve complex business challenges using AI and mathematical optimization techniques.
Example Projects
• Optimization solutions for railway and transportation planning
• Power supply and demand optimization systems
• Vessel scheduling optimization systems
Depending on your experience and interests, your responsibilities may include:
• Designing, implementing, and evaluating optimization engines and solvers
• Integrating optimization engines with enterprise business systems
• Designing and implementing optimization algorithms for our SaaS products
• Gathering requirements from customers and presenting optimization results
• Providing technical mentoring and training to internal data scientists
応募資格Requirement Required
• Professional experience using mathematical optimization solvers such as Gurobi, SCIP, or similar
• Professional experience using optimization interfaces such as gurobipy, Pyomo, OR-Tools, or equivalent

Preferred
• Programming experience with Python or C++
• Academic research experience in mathematical optimization
• Experience developing optimization engines using metaheuristic algorithms
• AtCoder Algorithm rating of Light Blue or above
• Academic research experience in heuristic algorithms
• Project management experience
• JLPT N2 level or above (for non-Japanese candidates)
• Experience developing applications in cloud environments such as AWS
• Domain knowledge in industries such as electric power, shipping logistics, railways, or transportation
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 8,000,000 円 - 12,000,000円
条件・待遇Condition Annual Salary
JPY 8,000,000 – 12,000,000
Compensation will be determined based on experience, skills, and qualifications.
Compensation Structure
Annual compensation consists of:
• Monthly salary × 12 months
• Performance bonus
Monthly Fixed Salary
JPY 445,239 – 890,699
Breakdown:
• Base Salary: JPY 334,485 – 669,191
• Fixed Overtime Allowance: JPY 110,754 – 221,508 (Equivalent to 42 hours of overtime per month)
Bonus
Performance-based bonus paid twice annually (February and August), based on individual performance and company results.

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

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 across the company.
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 tool selections can be changed monthly.

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

AI Learning Program
Prior AI experience is not required.
Hands-on training programs help employees quickly acquire the AI skills needed for their work.

Communication
Slack is our primary communication platform, enabling fast and open collaboration across teams.

Optional Company Events
Employees are welcome to participate in optional activities such as:
• Futsal
• Hiking
• Fishing
• Engineering retreats
• Hands-on technical workshops

Career Development
While we do not offer the large-scale training programs commonly found at major corporations, we provide highly personalized career development.
As a growing company where leadership knows every employee personally, management actively discusses each employee’s career path, recognizes individual strengths and backgrounds, and supports long-term professional growth while helping employees maximize their potential.
選考についてProcess Document Screening
→ First Interview
→ Programming Test
→ Final Interview
→ Offer
The number of interviews, assessment methods, and hiring process may change depending on the position and hiring circumstances at the company’s discretion.
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