Accomplished author, consultant and software engineer and entrepreneur that has helped multiple companies successfully reach millions of users via mobile and web. Early Groupon, MyFitnessPal & Poynt. Helped build and grow teams at American Express.
Current technology stacks that I work with include: JavaScript, Kotlin, Android, Node.JS, React.js, Solidity, MongoDB, Ruby on Rails, MySql, PostgreSQL. Many years experience with design patterns, OOP, TDD, Unit Testing, Scrum, XP, Kanban.