Lefteris Karageorgiou

Lefteris is a Lead Software Engineer at ZuluTrade and has been responsible for re-architecting the backend of the main website from a monolith to event-driven microservices using Java, Spring Boot/Cloud, RabbitMQ, Redis. He has extensive work experience for over 10 years in Software Development, working mainly in the FinTech and Sports Betting industries. Prior to joining ZuluTrade, Lefteris worked as a Senior Java Developer at Inspired Gaming Group in London, building enterprise sports betting applications for William Hills and Paddy Power. He enjoys working with large-scalable, real-time and high-volume systems deployed into AWS and wants to combine his passion for technology and traveling by attending software conferences all over the world.

jpa
Lefteris KarageorgiouJune 12th, 2019
0 302
JPA @Embedded And @Embeddable Example
1. Introduction In this post, we will examine the functionality of two JPA annotations, the JPA @Embedded and the @Embeddable.…
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Quartz
Lefteris KarageorgiouJune 4th, 2019
0 1,009
Java Quartz Architecture Example
1. Introduction In this post, we will take a closer look at the architecture of Quartz, a very popular open…
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Quartz
Lefteris KarageorgiouMay 23rd, 2019
0 2,013
Java Quartz Logging Example
1. Introduction In this article, we will explore Java Quartz Logging application using two of the most widely used logging…
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Quartz
Lefteris KarageorgiouMay 17th, 2019
2 2,132
Java Quartz with MySQL Example
1. Introduction In this article, we will go through the configuration needed to setup MySQL, the most famous open source…
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sql
Lefteris KarageorgiouMay 13th, 2019
0 162
SQL Data Types Tutorial
1. Introduction SQL is the language used to communicate with Relational Databases such as MySQL, Oracle, MS SQL Server, PostgreSQL,…
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Core Java
Lefteris KarageorgiouApril 23rd, 2019
1 141
Immutable Class Java Example
In this article, we will explain what Immutable Class is in Java through examples. 1. Introduction In programming, an object…
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Core Java
Lefteris KarageorgiouApril 12th, 2019
1 97
Java HashMap vs TreeMap Example
1. Introduction A very important data structure in programming is the Map which is used for extremely fast lookups. In…
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Core Java
Lefteris KarageorgiouApril 4th, 2019
4 187
Java ArrayList vs LinkedList Example
1. Introduction One of the most commonly used data structures in programming is the Array. Java comes with two implementations…
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Core Java
Lefteris KarageorgiouMarch 27th, 2019
0 110
Java Main Method Example – public static void main(String[] args)
In this post, we feature a comprehensive example of the Java Main Method – public static void main(String[] args) through…
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Core Java
Lefteris KarageorgiouMarch 19th, 2019
0 423
OOPS Concepts Java Tutorial
In this post, we feature a comprehensive OOPS Concepts Java Tutorial. We will take a look at the OOPS concepts…
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Thank you!