Languages
Ruby, JavaScript, Python 3
Frameworks
Ruby on Rails, Angular, Express.js, Flask, Django
Libraries/APIs
Google APIs, Node.js, Flask-RESTful, Facebook API, Twitter API, React
Platforms
Ubuntu 16.04, Linux, Mint
Storage
Redis, MySQL, PostgresSQL, AWS DynamoDB, Google Cloud, Memcached, MongoDB
Tools
GitLab, Bitbucket, GitHub, MQTT