Dénes Kellner
Frontend developer
  • Hungary
Member Since: 2002/11/25
Industry: Computer & IT
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20ms runtime is worth 20 minutes of thinking. Performance & quality are important, PSR4 is not. SQL is something I only use when I have to.

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Total points25,835
Questions: 2
Solutions: 19
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Professional Background
Frontend developer
EMG Zrt
April 2015 – Present
Budapest, Hungary
- Lots of EU sites
- Development tools
- Project management system
- ...and many more
Lead Developer
HotelPremio Ltd / Szallodak.hu
September 2013 – March 2015
Budapest, Hungary
- Main site, full stack dev + optimization
- Sales support system
- Customer chat
- Lots of wellness for free :)
Owner & Developer
LoveBox Dating Portal
September 2002 – July 2014
Budapest, Hungary
- Founded & developed the whole thing
- TNU way over a million
- Served 1000+ concurrent users on 2 PC servers (!!)

Best years of my life / learnt a lot.
You'll never see such dirty optimizations.
Developer
MTI (Hungarian News Agency)
January 1996 – March 2000
Budapest, Hungary
Delphi 7, Netscape 2, Explorer 3, VAX/VMS Pascal, BasisPLUS db, Reflection 4 programmable terminal emulator and lots of various outdated sh*t :) Don't even bother to read this.
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Education
No Education Background shown
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Full Biography

Development is my passion. My first PC was a 8086 with a MonoVGA display, and Windows was some silly graphical shell that no one liked. Web arrived in then 90s - my first website ran on Netscape Navigator. Then came the smartphones - my first mobile dating site had to run on iPhone 3, served by PHP4. I learn the whole industry again every 6 years. In the meantime I built my own web framework to produce sites faster. But whenever I have the chance I use Delphi or Lazarus to write something real and publish it as a freeware. (See deneskellner.com/sw)

I love this journey wherever the road goes.

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Languages
English
Professional Working Proficiency
Hungarian
Native or Bilingual Proficiency
German
Elementary Proficiency

Level Progress

Current: Level 3
Dénes needs 6,165 points to level up.
LVL 4
  • Overall
    3
  • PHP
    3
  • Web Development
    2
  • Web Languages and Standards
    1
  • MySQL Server
    1
  • Web Applications
    1
  • Web Servers
    1
  • Web Services
    1

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