Senior AI Engineer

### Job Description As a core member driving AI solutions tailored to specific industries and complex workflows, you will leverage LLMs, machine learning, and mathematical optimization technologies to manage the entire lifecycle of our offerings—spanning business logic design, algorithmic modeling, and production implementation. This position goes far beyond traditional "model-and-hand-off" research. You will be responsible for designing the actual operational processes, decision-making frameworks, and target KPIs, ensuring that AI implementations directly translate into measurable, bottom-line business success. ### Responsibilities - Design and development of AI products for specific industries and business processes - Structuring and modeling of business workflows and decision-making logic - Application of LLMs, machine learning, and optimization algorithms to business operations - Design and implementation of AI agents and multi-step reasoning - Development of AI applications utilizing prompt engineering, RAG, structured output, and other techniques - Design of KPIs and evaluation metrics linked to business outcomes - System design for production deployment, including MLOps and LLMOps - Collaboration with in-house FDE and consultants to clarify business requirements and translate them into technical specifications - Efforts to abstract insights gained from individual projects and incorporate them into reusable product assets ### Job Requirements 【Ideal Applicants】 - Driven by a strong desire to enhance the competitiveness of Japanese enterprises through the practical, large-scale implementation of AI in society. - Highly motivated by AI engineering that goes beyond conceptual Proof of Concepts (PoCs) to drive actual operational transformation and measurable business results. - Aspires to scale into high-impact leadership roles in the future, such as Product Owner, Business Unit Head, or tech entrepreneur. - Possesses deep intellectual curiosity coupled with the mental stamina required to autonomously learn, reason through complex problems, and drive initiatives forward. 【MUST】 Meet any of the following: - Experience developing web applications or APIs using Python - Experience developing with LLM APIs (OpenAI, Anthropic, Gemini, etc.) - Experience implementing prompt engineering, RAG, etc. - Professional experience in machine learning, data analysis, or mathematical optimization - Experience with team-based development using Git/GitHub 【WANT】 - Experience in designing and implementing AI agents - Experience using LangChain, LangGraph, and similar tools - Experience in designing and operating MLOps/LLMOps - Experience developing SaaS or B2B products - Experience in business process improvement, business process design, and BPR - Domain knowledge in specific industries (e.g., manufacturing, distribution/retail, automotive, SCM, telecommunications, etc.) ### Requirements/Certifications - English Level: None - Japanese Level: Business Level (JLPT Level 2 or N2) - Chinese Level: None ### Working Hours & Benefits - Working Hours: Flextime System - Employee Stock Ownership Plan (ESOP) - Corporate Defined Contribution Pension Plan - Subsidies for Medical Checkups, Comprehensive Physical Exams, and Vaccinations - Mental Health Consultations with Industrial Physicians - Subsidies for Resort and Sports Facilities - In-house Cafe Program - Distribution of Baby-sitting Discount Coupons - Subsidy for Book Purchases - Full Reimbursement of Commuting Expenses - Subsidy for Taxi Fares - Congratulatory and Condolence Money System - Subsidies for Club Activities and Recreational Events ### Holidays - Saturday/Sunday/National Holiday, Annual Paid Leave, New Year Holiday, Parental Leave, Nursing Care Leave, Special Paid Leave