Rózsás Gergely, Developer in Mezőberény, Hungary
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Rózsás Gergely

Verified Expert  in Engineering

Back-end Developer

Mezőberény, Hungary

Toptal member since February 25, 2022

Bio

Gergely has been in the software industry for over ten years. During this period, he has sharpened his skills as a developer, mentor, and team leader. Gergely has dealt with multiple projects concurrently while working in a multinational and multilingual setup both on-premises and remotely.

Portfolio

Lufthansa Systems Hungária
Agile Practices, Back-end, Docker, Docker Swarm, Drupal 8, GitLab CI/CD, Go...
Glass Creative Studios Ltd
PHP, Jenkins, MacOS, Stripe, Drupal, Ruby, WordPress, JavaScript, Capistrano...
Greenroom
PHP, JavaScript, MySQL, SSH, Joomla, HTML, CSS, Git, GitHub, LAMP

Experience

  • PHP - 10 years
  • MySQL - 10 years
  • SQL - 10 years
  • APIs - 10 years
  • Java - 5 years
  • Docker - 5 years
  • Go - 2 years

Availability

Part-time

Preferred Environment

GoLand, PhpStorm, Windows, MacOS, Linux, VirtualBox, SourceTree, IntelliJ IDEA, Docker

The most amazing...

...thing I've developed is an in-flight content and entertainment portal that is used on 400 aircraft vehicles belonging to 13 airlines from all over the world.

Work Experience

Project Lead Developer

2016 - 2022
Lufthansa Systems Hungária
  • Participated in the shaping of products from a technical perspective.
  • Acted as a team leader and lead developer in a team of up to ten people.
  • Developed portal apps in PHP and Go for in-flight content and in-flight entertainment services.
  • Implemented several services and functional groups within the portal apps, including REST APIs.
  • Optimized and implemented TeamCity continuous integration and auto-deployment pipelines.
  • Integrated the portal apps with several other services, including RabbitMQ, Elasticsearch, and Azure Blob Storage.
  • Optimized Java-based API system tests of the portal apps to run an order of magnitude faster.
Technologies: Agile Practices, Back-end, Docker, Docker Swarm, Drupal 8, GitLab CI/CD, Go, Java, JavaScript, PHP, PHP 7, PHP 5, MySQL/MariaDB, MySQL, SQL, TeamCity, Docker Compose, Agile, GoLand, PhpStorm, Linux, Symfony, APIs, REST APIs, JSON, Git, Elasticsearch, Ansible, SQLite, Kaniko, MariaDB, Scrum, IntelliJ IDEA, SourceTree, VirtualBox, Databases

Head of Information Technology

2016 - 2016
Glass Creative Studios Ltd
  • Implemented the Drupal back end of a complex startup investment analysis platform's MVP.
  • Participated in the development, maintenance, and operation of several smaller websites that helped me to get to know various technologies and enhance my web skills, PHP and JavaScript especially.
  • Implemented an SSO solution for a network of websites.
  • Oversaw the deployment and migration of several websites on AWS servers.
Technologies: PHP, Jenkins, MacOS, Stripe, Drupal, Ruby, WordPress, JavaScript, Capistrano, cPanel, jQuery, Amazon Web Services (AWS)

Back-end Developer

2015 - 2015
Greenroom
  • Developed the front- and back-end elements of several advertisements and marketing campaigns which helped to sharpen my web skills with PHP, MySQL, JavaScript, HTML, and CSS.
  • Introduced a Git version control system to many companies' projects with remote repositories either on GitHub or on a private server.
  • Participated in the creation of a multisite for a large Hungarian company that's used by more than 100,000 users a month.
Technologies: PHP, JavaScript, MySQL, SSH, Joomla, HTML, CSS, Git, GitHub, LAMP

Head of IT

2013 - 2014
E-beeze Ltd.
  • Led the web development team that consisted of four people.
  • Implemented a web UI and its corresponding back-end functions using jQuery, jQuery UI, and PHP that enabled mobile and web applications to push dynamic data into Salesforce.
  • Implemented a Salesforce Apex component that was able to receive and store dynamic data from mobile and web applications.
  • Helped to create a digital platform that helps companies go paperless; it also runs pilots with several UK companies such as Barclays and Lloyds Banking Group.
Technologies: PHP, JSON, Java, APIs, Apex, Salesforce

Web Programmer

2012 - 2013
E-beeze Ltd.
  • Created a PHP script that downloaded information about places in an arbitrary city using the Google Places API.
  • Implemented an API in PHP that served queries of mobile applications.
  • Reworked the outfit of a website according to a design initiative.
Technologies: PHP, JavaScript, CSS, MySQL, APIs

Experience

AERQ AERENA

https://www.aerq.com/
A project kicked off by LG Electronics and Lufthansa Technik for creating a platform that provides an in-flight content-and-entertainment system using in-seat devices.

I participated in the project right from the beginning as a lead developer, and our focus was to synchronize data and content to the in-seat devices as well as to provide an API that can be used to query available data and content. I was involved in a lot of aspects, which included choosing an appropriate technology stack, actually coding the microservices used in the workflow, and creating CI/CD pipelines and tests for those.

BoardConnect Digital Experience Platform

https://www.lhsystems.com/solutions-services/boardconnect-digital-experience-platform
A platform that provides in-flight content and entertainment systems in aircrafts.

As the team's lead developer, I oversaw the development of a portal application within the platform. I was deeply involved in the low-level implementation details, API interface definitions, the overall general architecture of the portal application itself, and adherent processes that helped transfer content from the ground to the aircraft.

SignTechForms

https://www.signtechforms.com/
A platform that helps companies go paperless by offering a digital replacement of paper-based forms they use in their everyday workflows.

I started as a web developer and my responsibility spanned the whole web part of the platform. I was involved in the development of the API that was used both by the mobile applications and the web UI, the web UI, and the platform website itself.

Later on, I also became the leader of a team of four web developers.

Education

2010 - 2014

Bachelor of Science Degree in Molecular Bionics Engineering

Pázmány Péter Catholic University - Budapest, Hungary

Skills

Libraries/APIs

REST APIs, Stripe, jQuery

Tools

GitLab CI/CD, TeamCity, Docker Swarm, Docker Compose, Git, Kaniko, GoLand, PhpStorm, VirtualBox, SourceTree, IntelliJ IDEA, Ansible, Jenkins, Capistrano, GitHub, GitLab, RabbitMQ

Languages

PHP 7, PHP, PHP 5, Go, Java, SQL, JavaScript, Ruby, HTML, CSS, Apex

Platforms

Drupal 8, Docker, Drone CI, Windows, MacOS, Linux, Amazon Web Services (AWS), Drupal, WordPress, cPanel, Joomla, LAMP, Salesforce

Storage

JSON, MySQL/MariaDB, SQLite, MySQL, Databases, MariaDB, Elasticsearch

Frameworks

Symfony

Paradigms

Scrum, Agile

Other

Back-end, APIs, Agile Practices, Chemistry, Physics, Biochemistry, Mathematics, SSH

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