Conquering cancer through AI. Lunit is a medical AI software company that provides AI-powered total cancer care. The company is looking for a Senior Applied Research Scientist to join their AI Foundation Team and work on building the next generation of multimodal medical foundation models.
Requirements
- 5+ years of professional experience in AI development, search and RAG
- Proficient in English
- Overall understanding of the healthcare industry and passion for artificial intelligence
- Strong expertise in RAG systems: document chunking, vector indexing, reranking, and retrieval pipeline design
- Solid understanding of LLM fine-tuning, tokenizer optimization, and multilingual model operation
- Hands-on knowledge of cloud deployment, CI/CD, containerization, and scalable backend systems
- Experience with graph-structured retrieval, temporal/spatial metadata normalization, or versioned KBs
- Proven record of end-to-end LLM productization (data → training → serving)
- Experience with multilingual search and UX (e.g., Japanese, Korean, English)
- Clear and structured communicator; able to explain complex systems to both researchers and engineers
- Ownership mindset and high execution speed under tight deadlines
- Collaborative and self-driven—comfortable bridging between AI research, data, and engineering teams
- Leadership in cross-functional applied AI projects or startup-style product teams
- Ability to identify and prioritize impactful technical directions with minimal supervision
Benefits
- Meal Allowance (up to 12,000 KRW per meal)
- Decoration allowance (up to 300,000 KRW)
- Latest computer models (Macs and 4K monitors)
- Seminar registration fees and book purchases covered
- Regular in-house AI and medical seminars
- Korean lessons for non-Korean speakers
- In-house English lessons (Luniversal)
- Access to high-quality AI learning resources & deep learning DevOps system
- Benefits points (up to 1.2 million KRW annually)
- Holiday Allowances (gifts or vouchers)
- Congratulatory and Condolence allowances
- Paid time off
- Annual medical checkups and employee accident insurance