Languages
ECMAScript (ES6), Java 8, Scala, Kotlin, SQL, HTML, CSS, Perl, Bash, Python, XML/XSLT, HTML5, XML, Java, JavaScript, GraphQL
Frameworks
Spring, Play 2, Hadoop, Akka, Netty, JUnit, Scalatra, Play Framework, Sails.js, Hibernate, Express.js, Mockito, Spring Boot
Libraries/APIs
API Development, Node.js, REST APIs, Jackson, Twitter API, Facebook API, JSON API, Joda-Time, JAX-RS, JAXB, Slick, Scalaz, Slack API, RESTEasy, Moment.js, React, jQuery
Paradigms
Unit Testing, Functional Programming, Object-oriented Design (OOD), Design Patterns, Microservices, Management, Scrum, Agile Software Development, Agile, REST, Dependency Injection, MapReduce, Functional Reactive Programming, Testing, DevOps
Other
APIs, Analytics, Data Modeling, Data Analytics, Architecture, Web Development, Scalability, Big Data, Data Architecture, AWS, Data Flows, Algorithms, Ad Serving, API Design, SOAP, eCommerce, Concurrency, Sharding, Load Balancers, PDF, User Requirements, Product Management, Client Management, Process Design, Garbage Collection, Data Structures, Web Scalability, High-availability Systems, Optimization, Ad Optimization, Affiliate Marketing, Technology, Publishing, Paid Advertising, WebSockets, Ajax, IoC, Recommendation Systems, Modeling, Data, Home Automation, Google Home, Data Aggregation, Data Analysis, Dashboard Development, Analytical Dashboards, Zen Cart, Front-end Development, Code Architecture, Roadmaps, Product Roadmaps, People Management, Documentation, Enterprise Java Beans (EJB)
Tools
Cloud Dataflow, Apache Beam, Apache Airflow, Apache Ant, JSX, Elastic, IDEA IDE, IntelliJ IDEA, IntelliJ, Subversion (SVN), Jetty, Squeryl, Microsoft Excel, Apache Tomcat, Spreadsheets, Java VisualVM, SBT, Apache Maven, Apache, Maven, ScalaTest, Jira, Slack, Postman, Looker, Sketch, MQTT, Mongoose, Git, Nginx, Mocha, Sequelize, Terraform, CircleCI
Platforms
Amazon Web Services (AWS), Google Cloud Platform (GCP), MacOS, AWS Lambda, JBoss, JVM, Amazon EC2, Ubuntu, Linux, Amazon Alexa, Docker
Storage
NoSQL, Google Cloud, JSON, H2, HDFS, Neo4j, MySQL, AWS S3, Apache Hive, MongoDB, Memcached, CouchDB, HBase, PostgreSQL, Redis, Datadog, Data Lake Design