John Greiner is a skilled professional with extensive experience in software development, system analysis, and product analytics. With a background in management information systems, John has held roles such as Senior Systems Analyst and Requirements Analyst at companies like Futures Inc. and IBM. John has also completed a Ruby on Rails course at The Iron Yard and currently works as a Report Developer/Product Analyst/Developer at Spoonflower. John has a strong track record of delivering software enhancements and developing user stories, showcasing their expertise in the field.