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Fiverr Pro
Nederlands
$
USD
I will debug, fix, and optimize backend systems and PHP applications


John Verheij
Over deze dienst
I will fix backend systems that are unstable, buggy, or failing under real use.
If your application has:
- broken integrations
- sync failures
- inconsistent data
- performance issues
- hard-to-track errors
Ill trace the root cause and fix it properly, focusing on existing systems, not quick hacks. I work carefully to stabilize whats already there and make it safe to run in production.
Respecteer de rechten van derden
Let erop dat het tegen het beleid van Fiverr voor freelancers is om thema's, templates of andere elementen in het geleverde werk op te nemen die inbreuk maken op de rechten van derden of toepasselijke wetten. Lees er meer over in onze Gids voor verantwoorde digitale creatie.
Maak kennis met John Verheij
John Verheij
Senior Backend , API Engineer
- Afkomstig uitNederland
- Lid sindsdec 2023
- Laatste levering5 maanden
Talen
Nederlands, Engels, Duits
Senior backend and API engineer with a strong focus on reliability, clear system design, and long-term maintainability. I build API-first systems in PHP (Symfony, Laravel) and operate them on Linux, preferring boring, predictable solutions that run reliably in production.
Mijn portfolio
Veelgestelde vragen
Why are delivery times so lengthy?
It's my own doing because I just don't deliver; instead, I develop, test the project in beta, and then release it.
