Hey, I'm

László Leber

Welcome to Leber Software

Experience

I am an experienced Senior Software Engineer with extensive programming expertise since 2002. I specialize in identifying customer needs and translating them into effective software solutions. I hold a degree in Computer Science and Engineering from the University of Pécs, earned in 2010. In 2019, I enhanced my skills by completing a UX Designer course, which provided me with modern software design methodologies that complement my academic background. This allows me to seamlessly integrate traditional software design techniques with contemporary approaches.Currently, I am employed at Lufthansa Systems Hungaria. I'm working there as a Senior Expert Full Stack Engineer (similar to a Staff Engineer level in many international engineering organizations) with a frontend focus, specializing in React, TypeScript and Spring Boot within large-scale enterprise environments. Leading technical initiatives across multiple teams, driving architecture decisions, frontend standards and engineering best practices. Experienced in mentoring developers, conducting technical interviews and leading engineering communities while contributing hands-on to complex product development. Strong focus on scalable architectures, developer experience, maintainability and high-quality software delivery.Additionally, I run a technology YouTube channel, "Codeching", where I share insights and tutorials on various technologies. I also maintain this personal website (Leber Software) featuring the VR mobile games I have developed for the Oculus platform.

Careers

Lufthansa Systems Hungária

Current - Apr 2026

Senior Expert Software Engineer

- Budapest - full time

Senior Expert Full Stack Engineer (similar to a Staff Engineer level in many international engineering organizations) with a frontend focus, specializing in React, TypeScript and Spring Boot within large-scale enterprise environments. Leading technical initiatives across multiple teams, driving architecture decisions, frontend standards and engineering best practices. Experienced in mentoring developers, conducting technical interviews and leading engineering communities while contributing hands-on to complex product development. Strong focus on scalable architectures, developer experience, maintainability and high-quality software delivery.

Lufthansa Systems Hungária

Apr 2026 - Mar 2020

Senior software engineer

- Budapest - full time

Team architect / Team lead - senior full-stack developer

Lufthansa Systems Hungária

Mar 2020 - Oct 2019

Professional software engineer

- Budapest - full time

Lead Front-end developer(React, Node) - Passenger Experience Unit / AERQ Control Tower team

Paks II. Nuclear Power Plant Ltd.

Nov 2019 - Jul 2019

Information Technology Expert

- Paks - full time

Govern-Soft Kft.

Jul 2019 - Mar 2015

Lead of Software development department / Senior Software Development Engineer

- Paks - full time

.NET Core 2.0 MVC, Angular 5 | ASP.NET WebForms, jQuery | https://govern.hu

Govern-Soft Kft.

Mar 2015 - Feb 2011

Software Engineer

- Paks - full time

Delphi,PHP

Honors & Awards

2026 April: Recognition of Senior Expert Title
Awarded the Senior Expert title (Staff level software engineer) in recognition of my professional contribution to Lufthansa Systems Hungaria. This title reflects senior-level expertise, organizational impact, active knowledge sharing, and continuous professional improvement.
2025 Oct: Professional Excellence Award I received this award in recognition of my significant contributions to the UI community, as well as my key role in our project, where I serve as the team architect and full-stack lead developer. Part of the award also acknowledges my development of an internal Gantt library, which is now being integrated into our product and may become part of a broader internal UI package for company-wide use. It was a pure UI developer challenge that I truly enjoyed.
2024 May: Professional Excellence Award Lufthansa Systems – team award – We would like to nominate the whole AERQ team @LSYH for the Professional Excellence Award because of their outstanding contribution to the enter-into service of the AERQ AERENA Entertainment System. After a long journey started in 2020 and very challenging months at the end the next generation of IFE was able to take off at Discover Airlines in April and operating smootly since then. The team was able to cope with the continously changing expectations, introduced state of the art technologies and established a professional mindset, enthusiasm and expertise without which this product surely couldn't have been born. Congratulations to the whole team!
2021 November: Professional Excellence Award
Lufthansa Systems – personal award – I made the architecture and most of the implementation of a React component library and other integration parts which provide seamless transition between our current project family’s systems. It provides SSO (Single Sign-on), authentication (based on OpenID), authorization, top navigation UI bar and navigation system. It is integrated by many teams to their projects in the same project family around the world to make the connection between the systems and allow the user to navigate between them without re-login. It communicates with Keycloak, User manager services
2021 : Professional Excellence Award
Lufthansa Systems – team award – Control Tower team
2020 : Connect + Award Lufthansa Systems

Skills

Here you can find my most important tech skills as a software developer.

My main technologies

React, Axios, Redux, RTK toolkit, SSR, Micro Front-end (Single-Spa)
JEST, React Testing Library
JavaScript, HTML/5, CSS/3 (+ SASS), JSS, Styled components
JSON / XML
Java, Spring, Spring-boot, Spring Data, JPA, Hybernate, Liquibase
NodeJS / Express
Gitlab CI/CD
Argo CD
Kubernetes
Docker
Cypress
Angular 4+

Other technologies used

Android (Java), Unity (Oculus Virtual Reality platform)
.NET Core MVC, ASP .NET MVC, ASP .NET WebForms, Entity FrameWork, LinQ
PHP (frameworks, e.g. CodeIgniter)
Delphi, Oracle PL/SQL, XNA, ExtJs, SqLite, Smarty, Redbeans ORM
jQuery

TOP hobby projects

Fear the Lights Out

Do you remember the movie, “Lights out”. Do you remember the fear you felt when you watched it? This game is based on similar things like that movie. Just keep the lights on and you won’t have any problem ? The game will launch in Q2, 2020 for Oculus Quest.

BangSquash

BangSquash is a block breaker-style game for the Oculus virtual reality (VR) platform. We believe BangSquash is an ideal game to introduce novice players to the basics of the Oculus platform or to enjoy a quick, engaging workout in just a few minutes. As an arcade game, each level can be replayed multiple times, with no two playthroughs being the same thanks to realistic physics. Every session unfolds differently, keeping the experience fresh and dynamic. The game launches with a full set of fun achievements and a global ranking system to enhance replayability. !!! An orientation-tracked controller is required to play this game.

Maze of the Mummy

This is a VR (Virtual reality) maze game for Android mobile phone, where you should collect treasures while several creatures (Mummy, spider,…) try to catch and disturb you in a dark pyramid.