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Lefteris Karageorgiou Email & Phone Number
Senior Solutions Architect
at
Amazon Web Services (AWS)
LinkedIn matched
✓ Verified May 2026
3 data sources
Profile completeness 86%
Current company
Role
Senior Solutions Architect
Location
United Kingdom, United Kingdom, United Kingdom
Company size
Who is Lefteris Karageorgiou? Overview
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Quick answer
Lefteris Karageorgiou is listed as Senior Solutions Architect at Amazon Web Services (AWS), a company with 142019 employees, based in United Kingdom, United Kingdom, United Kingdom. AeroLeads shows a matched LinkedIn profile for Lefteris Karageorgiou.
Lefteris Karageorgiou previously worked as Solutions Architect at Amazon Web Services (Aws) and Author of Mastering Event-Driven Microservices in AWS at Avaβ’ - An Orange Education Label. Lefteris Karageorgiou holds Master Of Science In Information & Telecommunications Technologies, Information Technology, Software Development from Athens Information Technology.
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Email format at Amazon Web Services (AWS)
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Amazon Web Services (AWS)
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Profile bio
About Lefteris Karageorgiou
Lefteris is a Solutions Architect at Amazon Web Services with 20 years of experience in Software Engineering. He is part of a community that specializes in Serverless computing and Java. Throughout his career, Lefteris has demonstrated expertise in successfully leading the migration of large monolithic systems to event-driven microservices architectures.Additionally, he has served as an AWS Tech Instructor, training more than 200 individuals on the AWS cloud platform. Lefteris is a frequent speaker at technical conferences and meetups, where he shares his knowledge and expertise on topics such as event-driven microservices, serverless, and cloud computing.Lefteris is also a passionate technical writer, having contributed as a Technical Author for Java Code Geeks, one of the most popular blogs for Java Programmers. He is also the author of the book "Mastering Event-Driven Microservices in AWS" (https://amz.run/9V3y), a practical guide that equips readers with the knowledge and skills to design, build, and operate resilient, scalable, and fault-tolerant systems using AWS serverless services.
Current workplace
Lefteris Karageorgiou's current company
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Amazon Web Services (Aws)
11 roles
Lefteris Karageorgiou work experience
A career timeline built from the work history available for this profile.
Solutions Architect
Current
Nov 2022 - Present
Author Of Mastering Event-Driven Microservices In Aws
CurrentAuthor of the book π''πππ¬πππ«π’π§π ππ―ππ§π-ππ«π’π―ππ§ ππ’ππ«π¨π¬ππ«π―π’πππ¬ π’π§ πππ''.This comprehensive guide is perfect for developers, architects, and tech enthusiasts who want to dive deep into event-driven systems and master the art of leveraging AWS Serverless services for powerful microservice architectures.π For International Buyers (AVAβ’): https://lnkd.in/gfG7kVUSπ.
Aug 2024 - Present
Co-Founder & Cto
Jul 2021 - Dec 2023
Senior Software Engineer
Oct 2019 - Oct 2022
Aws - Senior Tech Instructor
Teaching AWS (certification programs, labs) to companies and individuals
Jul 2019 - Oct 2022
Lead Software Engineer
- Design and lead the migration of the backend APIs from a monolithic application to event-driven microservices using Java 8, Spring Boot/Cloud, RabbitMQ, Redis, AWS
- Implementation of a multithreaded Java application responsible for getting Market Data using the FIX protocol
- Refactored Statistics and Ranking application and improved performance by 30%
- Responsible for the full life cycle of the software design process including requirements, design, implementation, testing, deployment, maintenance
- Improved performance, scalability and availability of the website
- Achieved 90% in integration and unit test coverage
May 2015 - Sep 2019
Technical Author
My published articles can be found on: https://examples.javacodegeeks.com/author/lefteris-karageorgiou/
Feb 2019 - Jun 2019
Senior Java Developer
- Lead the design and development of server-side web applications using Java, Spring, JPA, Hibernate
- Implementation of frontend web applications using Spring MVC, JSP, Thymeleaf, AngularJs, Bootstrap
- Involved in load testing and optimization of web applications
- Following Agile Scrum, TDD and Pair Programming methodologies
Mar 2012 - Apr 2015
Java Developer
- Designed and developed REST APIs for Gaming Applications in J2EE and Oracle
- Developed J2SE multi-threaded application responsible for parsing sports data in XML and send in real time to clients via web sockets
- Implemented internal CMS application in JSP for managing the sports data
Dec 2010 - Feb 2012
Application Analyst
- Analysis and design of the requirements and specifications of Customs Applications
- Daily maintenance of the applications deployed on AIX Systems
- Development of Oracle 9i SQL/PL-SQL queries for reporting
Sep 2008 - Dec 2010
2 education records
Lefteris Karageorgiou education
Master Of Science In Information & Telecommunications Technologies, Information Technology, Software Development
Athens Information Technology
Bsc, Mathematics In Computer Science, Mathematics, Computer Science
University Of Patras
FAQ
Frequently asked questions about Lefteris Karageorgiou
Quick answers generated from the profile data available on this page.
What company does Lefteris Karageorgiou work for?
Lefteris Karageorgiou works for Amazon Web Services (AWS).
What is Lefteris Karageorgiou's role at Amazon Web Services (AWS)?
Lefteris Karageorgiou is listed as Senior Solutions Architect at Amazon Web Services (AWS).
Where is Lefteris Karageorgiou based?
Lefteris Karageorgiou is based in United Kingdom, United Kingdom, United Kingdom while working with Amazon Web Services (AWS).
What companies has Lefteris Karageorgiou worked for?
Lefteris Karageorgiou has worked for Amazon Web Services (Aws), Avaβ’ - An Orange Education Label, Top Town, The Signal Group, and Code.Hub.
How can I contact Lefteris Karageorgiou?
You can use AeroLeads to view verified contact signals for Lefteris Karageorgiou at Amazon Web Services (AWS), including work email, phone, and LinkedIn data when available.
What schools did Lefteris Karageorgiou attend?
Lefteris Karageorgiou holds Master Of Science In Information & Telecommunications Technologies, Information Technology, Software Development from Athens Information Technology.
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