Vitalii Kotliarenko is an experienced software engineer, specializing in high-scalable and distributed systems, functional programming, big data, and machine learning. He obtained an MS in Cybernetics and a Bachelor of Science in Computer Science and Applied Mathematics from Kyiv National Taras Shevchenko University. Prior to his current role as Senior Software Engineer at Grammarly, Kotliarenko worked in several prestigious organizations such as Playtech, Luxoft, Kuadriga, Ciklum, Quest Software, Aricent, Infopulse, and KCK.

Kotliarenko's expertise spans various programming languages and platforms, including Scala, Java, Spring, Hibernate, REST API, JAX-WS, Spring MVC, Javascript/AJAX, Apache Spark, Akka, Spray, Slick, JMS, Apache Camel, Spring Remoting, and more. He is also knowledgeable in application security, particularly Spring Security, OAuth 2, and LDAP, and task automation tools such as Ant, Maven, Gradle, and Groovy. Furthermore, Kotliarenko is well-versed in Linux administration, shell scripting, and networking stack.

Kotliarenko's interests lie in the development of high-scalable and distributed systems, functional programming languages like Scala, Erlang, and Haskell, algorithms, big data processing, machine learning, AI, and natural language processing/understanding. His specialties include software development, software design, and software testing.