Job Description: Research Engineer/Scientist (Responsible AI)

Key Responsibilities

• Optimize safety training through SFT, RLHF, and RLAIF
• Develop guardrail technologies (e.g., harmful content detection, copyright infringement detection)
• Design and maintain safety-related data infrastructures

Required Skills and Experience

• Strong general knowledge of computer science
• Foundational knowledge and R&D experience in machine learning and large language models
• Strong motivation for advancing Responsible AI
• Ability to communicate complex technical topics clearly and concisely
• Native-level Japanese proficiency
• Fluent English proficiency (capable of engaging in discussions)
• Master’s degree in computer science or a related field, or equivalent professional experience

Preferred Skills and Experience

• Experience presenting at international conferences
• Native-level English proficiency
• Any of the following:
  • R&D involving large language models
  • R&D in AI safety and reliability
  • Experience as a technical lead

Ideal Candidate

• Shares the mission and is motivated to embrace new business opportunities.

Mission

• Address challenges related to the safety, reliability, and security of large language models
• Identify and mitigate risks and harmful behaviors of AI
• Contribute to intellectual property through academic publications and patents
• Build, operate, and automate AI evaluation and red-teaming infrastructures

What We Offer

• Advance the development of Japanese large language models focusing on safety and fairness
• Strive for advanced safety standards meeting international benchmarks
• Opportunity to contribute to highly reliable AI technologies

Working Hours

• Flexible work available
• Standard hours: 9:00 AM – 5:45 PM
• Break: 1 hour
• Overtime: Required as needed

Salary and Bonuses

• Monthly Salary: ¥541,667 – ¥1,500,000
• Estimated Annual Salary: ¥6,500,000 – ¥18,000,000
  • The upper limit is not guaranteed
  • Includes base pay plus fixed overtime allowance (equivalent to 35 hours)
  • Overtime pay applies only to non-managerial positions and is paid additionally if actual overtime exceeds 35 hours
  • Incentives may be provided separately

Allowances

• Commuting allowance: up to ¥150,000 per month
• Non-managerial employees: eligible for overtime, night shift, holiday work, and commuting allowances
• Managerial employees: eligible for management, night shift, and commuting allowances

Holidays and Leave

• Regular holidays: Two days off per week (Saturday and Sunday), national holidays
• Year-end and New Year holidays: December 29 – January 3
• Other designated holidays
• Annual paid leave: 6–21 days (varies by month of joining)

Benefits

• Social and Health Insurance: Health insurance, employment insurance, workers’ compensation, and welfare pension plan
• Employee Support Programs: Benefit One, premium discounts
• Savings and Retirement Plans: Property accumulation savings program, defined contribution pension plan (401K)
• Insurance Programs: Group life insurance, corporate life insurance, group casualty insurance, corporate casualty insurance, etc.
• Other Welfare Programs: Comprehensive welfare group term insurance