Understanding people’s opinions and emotions through written language is important in many fields, such as business and social sciences. This study, called sentiment analysis, looks at how thoughts, feelings, and behaviors are expressed in texts. With the growth of social media platforms like Reddit and Twitter, sentiment analysis has become more important. It is applied in computer science along with other fields like management and social sciences. In this study, we focus on sentiment analysis of Reddit comments and posts using AWS cloud services. We gather data using the PRAW Reddit API and employ tools like Kinesis Firehose, AWS Glue, and Amazon Athena to build a pipeline that collects, stores, and analyzes user content to identify sentiment patterns. Our results show how sentiment analysis can help businesses understand public opinion, customer behavior, and how cloud computing can handle large datasets effectively. We also evaluated AWS Comprehend, which achieved a precision, recall, and F1 score of 0.83, with an overall accuracy of 82.5%, showing strong and balanced performance in Sentiment Analysis Task.