AI Engineer (Navigation Agent)

The role

The Navigation Agent team develops AI Agents that understand user intent and movement context using LLMs. This role involves the full development process from LLM fine-tuning and machine learning model development to data construction and service application.

What you will do

• Perform LLM Fine-tuning and Post-training for Navigation Agent
• Develop Agent models that understand user utterances and movement context
• Develop Agent component models using traditional Machine Learning techniques
• Build training and evaluation datasets and improve data quality
• Design performance evaluation systems and core metrics
• Analyze failure cases to improve model quality
• Optimize model accuracy, stability, and response speed in service environments
• Collaborate with Navigation, Backend, Data, and Product organizations

Required qualifications

• Machine Learning or Deep Learning research and development experience
• Experience performing LLM Fine-tuning or Post-training
• Experience in model design, training, evaluation, and optimization using Deep Learning Frameworks such as PyTorch
• Experience developing and improving Machine Learning models for classification, prediction, ranking, or recommendation
• Experience designing and building training data and solving model problems through quantitative and qualitative evaluation
• Ability to learn new technologies and problems quickly and collaborate with colleagues from various job functions

Nice to have

• Experience in navigation or map/mobility service development
• Understanding of Navigation Domain such as route search, POI search, place recommendation, ETA prediction, and traffic information
• Experience developing LLM-based Agent, Tool Use, or Function Calling models
• Experience applying and operating search, recommendation, ranking, or personalization models in actual services
• Experience developing models using large-scale user logs or location/movement data
• Experience in GPU distributed training and building/operating large-scale training pipelines

Before you apply

• A 3-month probation period may apply
• Reference checks may be conducted with the applicant's consent after the interview process
• Employment may be canceled if false information is found in the application

About the company

42dot's Navigation Agent team develops AI Agents that understand user intent and movement context to perform complex navigation functions naturally.