Recommendation System Development

I need to develop a context aware recommender system. The system should find out the users’ context then provide them best matching items. The context details will be discussed during the interview. Technical requirements: -The candidate should be aware of, SAS, context aware recommender, sentiment analysis, social media analysis, web scraping... - Please send me your previous works. - I also need to know your time and cost estimation. Feel free to ask any questions. Thanks