Research Scientist (Generative & Agentic AI)

Location: Based in Tokyo, Japan. Visa sponsorship is provided for international candidates transitioning to Japan.

Company

hirify.global is an AI-native Agentic AI as a Service company that develops intelligent software for business decision-making and AI-driven ROI.

What you will do

• Research and build agentic AI systems covering reasoning, planning, tool use, memory, and multi-agent collaboration.
• Advance post-training methods including SFT, RLHF, reinforcement learning with verifiable rewards, and preference optimization.
• Improve the performance, efficiency, and scalability of foundation models across training, inference, and test-time compute.
• Design evaluations and benchmarks for models and agents in real-world scenarios.
• Collaborate with scientists and engineers to move research into production applications.
• Track frontier research, define new research directions, and publish findings at leading AI/ML conferences.

Requirements

• Master’s degree or Ph.D. in Computer Science, Electrical Engineering, Mathematics, or a related field, with AI/ML research experience.
• Deep understanding of foundation models and expertise in at least one of LLMs, VLMs/multimodal models, reinforcement learning, or agentic systems.
• Hands-on experience with LLM fine-tuning, RAG, agent frameworks, tool use, function calling, or product prototyping.
• Proficiency in Python and PyTorch, including building, training, and optimizing models.
• Ability to analyze model behavior, diagnose bottlenecks, and improve training and inference pipelines.
• Strong communication skills and a collaborative, team-first approach.

Nice to have

• Publications at leading AI/ML conferences such as NeurIPS, ICML, ICLR, CVPR, ACL, or EMNLP.
• Experience with large-scale distributed training or LLM post-training pipelines.
• Open-source contributions to agent frameworks, models, or benchmarks.
• Experience bridging generative and agentic AI research with real-world applications.

Culture & Benefits

• Work on frontier generative AI and agentic AI research with cross-functional scientists and engineers.
• Opportunity to publish research at top AI/ML venues and contribute to core AI capabilities.
• Visa sponsorship for international candidates through the Japan office.
• Fast-paced, collaborative environment focused on turning research into product impact.