Develop NLP machine learning Model in R

Looking for an experienced data scientist to develop an NLP machine learning model in R. The intended application of the model is text classification and sentiment analysis, with the goal of achieving state-of-the-art performance. The client already has a specific dataset for training the model. The ideal candidate will have experience in NLP, machine learning, and R programming. Specific skills required include:
- Proficiency in R programming language
- Experience in natural language processing and text classification
- Knowledge of machine learning algorithms and techniques
- Ability to optimize model performance
- Strong problem-solving and analytical skills.