Join a cutting-edge tech organization as an LLM Research Engineer, leading applied AI initiatives focused on large language models, agent systems, and machine learning.
This role bridges research and production, translating advanced AI concepts into scalable, real-world solutions. You will work on building next-generation AI agents, model evaluation systems, and training pipelines that deliver measurable business impact.
Key Responsibilities
- Design and develop LLM-based agent architectures, including memory systems and multi-agent communication.
- Build and implement quantitative benchmarks for evaluating large-scale AI systems.
- Conduct automated evaluation of models and prompt performance across the full lifecycle.
- Optimize training data and model performance for production environments.
- Collaborate with product teams to solve complex real-world AI challenges.
Required Skills and Qualifications
Experience:
- Experience developing LLM-based or agentic systems.
- Strong background in software engineering and machine learning.
- Experience with prompt engineering or building AI-driven products.
- Hands-on experience with large-scale model training using PyTorch or JAX.
- Deep understanding of LLM and Transformer architectures.
- Strong programming skills in Python (production-level).
- Ability to read and apply research papers to practical implementations.
Soft Skills:
- Strong problem-solving ability in complex AI environments.
- Ability to collaborate across teams and translate research into practical solutions.
- Proactive mindset with a focus on impact and continuous improvement.
Language Requirements:
- Japanese: Business level
- English: Business level
Preferred Skills & Qualifications
- Advanced degree (Master's or PhD) in AI, Computer Science, or related fields
- Experience with multimodal models (e.g., vision-language models)
- Experience in AI safety or agent evaluation research
- Knowledge of reinforcement learning (RLHF, DPO)
- Experience building multi-agent systems
About the Company
Our client is a global marketing and advertising technology company, leveraging advanced AI to transform how businesses engage with customers. The organization operates at the forefront of AI innovation and large-scale data-driven solutions.
Why You'll Love Working Here
- Work on cutting-edge AI technologies deployed in real production environments
- Direct impact on products used by hundreds of companies globally
- Opportunity to combine research and real-world implementation
- Support for publishing research and collaborating with academic communities
- Flexible work environment with remote work and flex-time options
- Competitive benefits including allowances and professional development support
Don't Miss Out - Apply Now!
