My Professional Journey

Dániel Debreczeni Resume
UI - UX Developer Fullstack Web Developer Team Player Freelancer

Thanks to continuous growth, I work confidently with OOP principles and various MVC frameworks. From traditional foundations to modern technologies, I have gained broad experience. I have worked in both small teams and large corporate environments, on projects ranging from simple solutions to complex systems.
Here you can see where I come from and what I’ve worked on so far – take a look at my professional journey!

16 Years of Experience

My Resume

1991 - 2016

Education

Front-End Academy, UI / UX Developer

Training 360 Ltd. (2016 - 2016)
Budapest / Hungary

76/100

Super intensive course covering fundamentals to advanced practical skills, including soft skills.

German A1

Manhattan Studio Ltd. (2013 - 2013)
Budapest / Hungary

92/100

Intensive German course from beginner to A1 level with final exam.

Mechanical Manufacturing Technology and Computer Engineering Technician

Déri Miksa Secondary Technical School of Industry (1995 - 1996)
Szeged / Hungary

3/5

Technical training built on previous studies, deepening knowledge in manufacturing technologies and computer science. 11-0803

NC, CNC Lathe Operator

Déri Miksa Secondary Technical School of Industry (1995 - 1996)
Szeged / Hungary

3.5/5

Advanced technical training aligned with modern mechanical engineering and manufacturing requirements. 04 9 8192 04 20 08

Computer Software Operator

Déri Miksa Secondary Technical School of Industry (1994 - 1995)
Szeged / Hungary

3.5/5

Supplementary vocational training aligned with modern technological requirements, resulting in an additional qualification. 47 4 313913 2 003

Metal Cutting Technician No. 316

Déri Miksa Secondary Technical School of Industry (1991 - 1995)
Szeged / Hungary

3.4/5

Practical metalworking and general education in a 4-year program. 4-year vocational qualification

Secondary School Graduation Certificate

Déri Miksa Secondary Technical School of Industry (1991 - 1995)
Szeged / Hungary

3.4/5

Traditional secondary education completed alongside obtaining the first vocational qualification. 4-year secondary school graduation

2002 - Active

Job Experience

Freelance Web Developer

Debreczeni Dániel E.V. (2023 - ) Budapest / Hungary

Providing services to clients within my own business and introducing new technologies using Laravel, Livewire and microservice architecture.
Participation in SCRUM/KANBAN teams. Development of new features for a manufacturing company application, planning and implementing version upgrades, and client communication. Participation in the development of an ERP system for a leading financial and real estate management company, including automated invoicing system integration based on SUP data, as well as development of HR and other modules.

Freelance Web Developer

W5 Informatikai Kft. (2022 - 2023) Budapest / Hungary

Agency collaboration with W5 Informatikai Ltd. Primarily dedicated to backend development of the public interfaces and administration pages of the largest Hungarian accommodation booking platform.
Rewriting legacy administration interface logic written in Symfony 1.x to the current Laravel version, taking ElasticSearch, DTO and Redis technologies into account, and participating in the team’s SCRUM processes.

Freelance Web Developer

Corvinsoft Kft. (2022 - 2022) Budapest / Hungary

Agency collaboration with Corvinsoft Ltd. Participation in and development of the agency’s projects. Planning and developing greenfield Laravel applications through to turnkey delivery, joining ongoing developments, and mentoring colleagues.
Development of a smart office system – displaying environmental factors on TV using Laravel–Vue.js – H1 Systems Ltd.<br>Development of an inventory management system for a manufacturing company, later adding new features to an Android WPA application using a Laravel–Vue–WPA tech stack – Belden-Duna Kábel Ltd.

Freelance Web Developer

Checking System Kft. (2020 - 2022) Budapest / Hungary

Design and development of management interfaces for security applications in Symfony v3.x and v4.x. Development of an automated Android fleet management tool.
Creation of user interfaces and implementation of related backend logic. Development of an automated Android device management and provisioning tool to simplify service processes for the company’s large mobile fleet. Remote software maintenance of mobile devices using MDM systems.

Laravel Full-stack Developer

Hacky Kft. (2019 - 2020) Budapest / Hungary

Development of small and medium-sized projects in the Laravel framework. Occasional client specification work, application, backend, frontend and database design. General responsibilities included effort estimation, feature implementation, and building logic and tests using the latest Laravel versions.
Technologies: Vue.js, jQuery, CSS3, Bootstrap, HTML5. Version control: Git with Bitbucket repositories, Trello/Jira, CI using Bitbucket Pipelines. Main projects: implementation of magyarkonyhaonline.hu and ad management admin, nettogumi.hu.

Full-stack Web Developer

Soft Consulting Hungary Zrt. (2016 - 2018) Budapest / Hungary

Development of an enterprise attendance tracking system.
Planning, estimation and implementation of features, bug fixing in the Laravel framework in a JavaScript, jQuery and HTML5 environment. <br>Additional technologies used: DataTables, jQuery UI, Bootstrap, BootstrapValidator, Ajax. Version control: Tortoise SVN. CI: TeamCity, documentation was created in Redmine.

UI / UX Developer

EPAM Systems Kft. (2016 - 2016) Budapest / Hungary

Participation in enterprise-level solutions for the interfaces of a banking advisory application’s customer management and forecasting system using the most modern technologies available at the time.
Participation in Angular application development. Technologies used: JavaScript, AngularJS, TypeScript, Highcharts, Node.js, HTML, HTML5 frontend development, UI unit tests. Version control: Git, continuous integration: Bitbucket, Confluence documentation.

Full-stack Web Developer

Carbon Solutions Global Kft. (2014 - 2015) Budapest / Hungary

Development of the company’s official website and implementation of modifications. Creation of a custom barcode-based entry system and development of a custom calendar feature on both backend and frontend sides.
Database design, search engine optimization, creation and maintenance of CSS and CSS3 stylesheets. Technologies used: PHP, MySQL, JavaScript, jQuery, HTML, HTML5.

Freelance Trader - Web Developer

Debreczeni Dániel E.V. (2010 - 2013) Budapest / Hungary

Own trading business. My previous activities were expanded with programming work and search engine optimization. I primarily supported my own trading processes with native PHP, MySQL, JavaScript, HTML and HTML5 development, as well as SEO. Occasionally, I also completed smaller custom development projects.
Development of my own classified ads management system, and design and implementation of order management and parcel tracking systems.

Freelance Hardware Trader

Debreczeni Dániel E.V. (2006 - 2012) Budapest / Hungary

Hardware trading, primarily focused on computer component sales.

Hardware Wholesale Trader

IKO-Sigma Kft. (2005 - 2006) Budapest / Hungary

Hardware wholesale. Client relationship management, primarily in the trade of computer components.

Hardware Wholesale Trader

CASE Hungary Kft. (2002 - 2004) Budapest / Hungary

Hardware wholesale. Client relationship management, acquiring new business clients, primarily in the trade of computer components.

Skill types

Programming Language

PHP language

95%

JavaScript

80%

Node.js knowledge

70%

TypeScript language

65%

Technology

Excel handling

86%

JWT token

72%

Push notifications

83%

ElasticSearch search technology

68%

Mobile automation

70%

MDM systems

55%

Confluence documentation

71%

Codex AI

55%

Gemini AI

45%

Claude AI

60%

Frontend Technology

jQuery library

88%

HTML markup language

95%

HTML5 markup language

95%

SASS stylesheet language

75%

SCSS stylesheet language

78%

CSS stylesheet language

92%

Twig templating engine

70%

Blade templates

87%

Bootstrap UI framework

74%

Progressive web app

85%

Soft Skill

Mentoring

60%

Client specification

90%

Strategic planning

85%

Project management

72%

Language Proficiency

English language

65%

German language

38%

Skill types

Framework

Vue.js framework

80%

Angular framework

30%

LiveWire framework

70%

Slim framework

30%

Laravel framework

97%

Symfony framework

70%

Database

MySQL database

85%

MongoDB database

50%

MS SQL database

80%

PostgreSQL database

82%

Redis data storage

70%

ORM data handling

90%

Eloquent ORM

93%

Methodology

Version control with GIT

93%

Version control with SVN

48%

Agile methodology

78%

Jira project management

73%

TeamCity CI

68%

Bitbucket Pipelines CI

80%

GitHub Actions CI/CD

68%

GitLab CI/CD

69%

Database design

92%

Marketing

Search engine optimization, SEO

60%

Link building

45%

2005 - 2026

Professional experiences

Claude AI

(Learned in: 2026)

Technology

0 Years of Experience

Gemini AI

(Learned in: 2025)

Technology

1 Years of Experience

Codex AI

(Learned in: 2025)

Technology

1 Years of Experience

Push notifications

(Learned in: 2024)

Technology

2 Years of Experience

JWT token

(Learned in: 2023)

Technology

3 Years of Experience

ElasticSearch search technology

(Learned in: 2022)

Technology

4 Years of Experience

Redis data storage

(Learned in: 2022)

Database

4 Years of Experience

LiveWire framework

(Learned in: 2022)

Framework

4 Years of Experience

MS SQL database

(Learned in: 2022)

Database

4 Years of Experience

MDM systems

(Learned in: 2022)

Technology

4 Years of Experience

Mobile automation

(Learned in: 2020)

Technology

6 Years of Experience

Symfony framework

(Learned in: 2020)

Framework

6 Years of Experience

Progressive web app

(Learned in: 2020)

Frontend Technology

6 Years of Experience

GitLab CI/CD

(Learned in: 2020)

Methodology

6 Years of Experience

GitHub Actions CI/CD

(Learned in: 2019)

Methodology

7 Years of Experience

Vue.js framework

(Learned in: 2019)

Framework

7 Years of Experience

PostgreSQL database

(Learned in: 2019)

Database

7 Years of Experience

Excel handling

(Learned in: 2017)

Technology

9 Years of Experience

Mentoring

(Learned in: 2017)

Soft Skill

9 Years of Experience

Strategic planning

(Learned in: 2017)

Soft Skill

9 Years of Experience

Eloquent ORM

(Learned in: 2016)

Database

10 Years of Experience

Blade templates

(Learned in: 2016)

Frontend Technology

10 Years of Experience

Laravel framework

(Learned in: 2016)

Framework

10 Years of Experience

Project management

(Learned in: 2016)

Soft Skill

10 Years of Experience

Bitbucket Pipelines CI

(Learned in: 2016)

Methodology

10 Years of Experience

Confluence documentation

(Learned in: 2016)

Technology

10 Years of Experience

TypeScript language

(Learned in: 2016)

Programming Language

10 Years of Experience

Node.js knowledge

(Learned in: 2016)

Programming Language

10 Years of Experience

Jira project management

(Learned in: 2016)

Methodology

10 Years of Experience

Angular framework

(Learned in: 2016)

Framework

10 Years of Experience

MongoDB database

(Learned in: 2016)

Database

10 Years of Experience

Agile methodology

(Learned in: 2016)

Methodology

10 Years of Experience

TeamCity CI

(Learned in: 2016)

Methodology

10 Years of Experience

Version control with GIT

(Learned in: 2016)

Methodology

10 Years of Experience

ORM data handling

(Learned in: 2015)

Database

11 Years of Experience

SCSS stylesheet language

(Learned in: 2015)

Frontend Technology

11 Years of Experience

Twig templating engine

(Learned in: 2015)

Frontend Technology

11 Years of Experience

Slim framework

(Learned in: 2015)

Framework

11 Years of Experience

Version control with SVN

(Learned in: 2015)

Methodology

11 Years of Experience

HTML5 markup language

(Learned in: 2014)

Frontend Technology

12 Years of Experience

SASS stylesheet language

(Learned in: 2014)

Frontend Technology

12 Years of Experience

Link building

(Learned in: 2013)

Marketing

13 Years of Experience

Search engine optimization, SEO

(Learned in: 2013)

Marketing

13 Years of Experience

German language

(Learned in: 2013)

Language Proficiency

13 Years of Experience

Bootstrap UI framework

(Learned in: 2013)

Frontend Technology

13 Years of Experience

Client specification

(Learned in: 2013)

Soft Skill

13 Years of Experience

jQuery library

(Learned in: 2013)

Frontend Technology

13 Years of Experience

JavaScript

(Learned in: 2010)

Programming Language

16 Years of Experience

CSS stylesheet language

(Learned in: 2010)

Frontend Technology

16 Years of Experience

Database design

(Learned in: 2010)

Methodology

16 Years of Experience

PHP language

(Learned in: 2010)

Programming Language

16 Years of Experience

MySQL database

(Learned in: 2010)

Database

16 Years of Experience

HTML markup language

(Learned in: 2010)

Frontend Technology

16 Years of Experience

English language

(Learned in: 2005)

Language Proficiency

21 Years of Experience

Contact

Contact with me