AI Engineer

Date PostedJune 9, 2026LocationTokyo, JapanCompanyLightyear Japan Co., Ltd.Salary3 million to 8 million yenTypeit (embedded software, control systems) - programmer it (embedded software, control systems) - project manager

Job Summary

You will work in the hyper-automation domain, focusing on AI utilization policies and DX promotion plans. Key responsibilities include architectural design using Azure OpenAI Service and developing internal AI integration functions. You will collaborate with clients to implement advanced AI solutions while ensuring system security.

Responsibilities

  • Develop DX promotion plans using generative AI
  • Architect proprietary services with Azure OpenAI
  • Integrate ChatGPT API with internal systems
  • Design secure AI system architectures

Required Skills

  • JLPT N1 certification
  • Python or C++ development (2+ years)
  • System design and testing experience
  • Knowledge of LLM and Azure OpenAI
  • Statistics and ML fundamentals

Job Details

### Job Description You will be responsible for the following tasks in the hyper-automation domain: * Supporting the formulation of AI utilization policies for client companies * Developing DX promotion plans utilizing generative AI technology * Architectural design for the development of proprietary services utilizing Azure OpenAI Service * Developing AI integration functions between internal systems and AI using the ChatGPT API * Developing AI service functions using TypeScript/Python, etc. * Designing and proposing system architectures that utilize AI while ensuring security in a closed environment * Providing knowledge to client companies in line with the latest AI technology trends * Developing proprietary AI services within our company ### Benefits * 125 days of annual leave * Complete two-day weekend (Saturday and Sunday) * National holidays, Year-end/New Year holidays, Summer holidays * Annual paid leave, Maternity leave, Childcare leave, Family care leave * Full reimbursement of commuting expenses * Health checkup cost subsidy * Casual dress code * Comprehensive social insurance and membership in the Japan Health Insurance Association * Qualification allowance (exam fee reimbursement and lump-sum payment) ### Job Requirements * N1 Certification (JLPT Level 1 or N1) * Experience in machine learning study or statistics study (Statistical Examination/G-Test holders welcome) * At least 2 years of practical experience in IT system design, development, or testing * Understanding of various LLM-related technical terms * At least 2 years of practical experience in development using Python or C++ ### Preferred Experience/Skills * Deep knowledge and experience in generative AI technology * Experience in system architecture design * Experience using Azure services, including Azure OpenAI Service * Knowledge of AI model tuning/data cleansing * Experience in system design with security in mind * Experience in team leadership and project management * Experience using GCP services, including Vertex AI