LLM Engineer – RAG Applications

Seoul (Hybrid) • Full time

  • KOREAN: NOT REQUIRED
  • Machine Learning

Join us in shaping the future of AI-powered knowledge retrieval!

At Dimando Digital, we are at the forefront of AI and web technology innovation. We design, build, and

support cutting-edge solutions that harness the power of Large Language Models (LLMs) and Retrieval- Augmented Generation (RAG) to transform how businesses access and leverage knowledge.

We are looking for a passionate LLM Engineer to join our team and play a key role in developing next- generation AI applications that seamlessly integrate LLMs with powerful retrieval systems. If you thrive

on solving complex problems, enjoy continuous learning, and love working in a dynamic, international team—we want to hear from you!

Your Responsibilities

  • Design and implement state-of-the-art RAG pipelines to enhance LLMs with external knowledge retrieval.
  • Fine-tune pre-trained LLMs (OpenAI, GPT, Llama, Falcon, etc.) to meet specific application needs.
  • Develop and optimize vector search and retrieval systems using Weaviate, Qdrant, or similar tools.
  • Ensure scalability, reliability, and low latency when integrating RAG applications into production environments.
  • Conduct performance testing and model evaluation to enhance accuracy and efficiency.
  • Stay ahead of the curve with the latest advancements in LLMs, retrieval systems, and AI technologies.
  • Collaborate with our product team to align technical solutions with business goals. Your Profile
  • Proficiency in Python and ML/NLP frameworks (TensorFlow, PyTorch, Hugging Face).
  • Hands-on experience with LLMs and fine-tuning techniques.
  • Strong knowledge of retrieval systems, vector databases, and indexing.
  • Experience with RAG-specific libraries like LangChain, Haystack, or similar frameworks.
  • Understanding of knowledge graphs and semantic search techniques.
  • Expertise in prompt engineering and dynamic prompting.
  • Passion for AI, continuous learning, and technical excellence.
  • Excellent English and communication skills.

What We Offer

  • Work-life balance with flexible hours.
  • Continuous learning – attend conferences, training, and workshops.
  • A world-class international team of AI and web experts.
  • Engaging team culture – retreats, hackathons, and fun activities.
  • A modern, open, and collaborative work environment.
  • A stimulating and dynamic work experience that fosters both personal and professional growth.

About Us

At Dimando Digital, we develop and support web technology and AI solutions, from the first idea to continuous support. We push boundaries to create intelligent, scalable, and innovative systems that make a difference.