Jonas Roos

Werkstudent Webentwicklung at ganztags. GmbH
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Contact Information
us****@****om
(386) 825-5501
Location
Bensheim, Hesse, Germany, DE

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Experience

  • ganztags. GmbH
    • Germany
    • Advertising Services
    • 1 - 100 Employee
    • Werkstudent Webentwicklung
      • Jun 2023 - Present

  • Freiberuflich
    • Remote per Webcam
    • Nachhilfelehrer für Mathematik
      • Jan 2016 - Present

      • tutoring in mathematics, physics and informatics until graduation • improves the grades from 60+ pupils • more than 1000 hours of lessons given • belongs to the top 15 nationwide on Superprof • tutoring in mathematics, physics and informatics until graduation • improves the grades from 60+ pupils • more than 1000 hours of lessons given • belongs to the top 15 nationwide on Superprof

  • IlluviHub
    • Webentwickler
      • Dec 2022 - Jun 2023

      • Co-founder of Illuvihub & Full-stack developer • Optimized website using Next.js with a focus on SEO best practices • Reduced hosting costs by around 60% by setting up hosting on a Linux server using Docker • Built the entire backend and API infrastructure for the website and ensuring i18n support • Co-founder of Illuvihub & Full-stack developer • Optimized website using Next.js with a focus on SEO best practices • Reduced hosting costs by around 60% by setting up hosting on a Linux server using Docker • Built the entire backend and API infrastructure for the website and ensuring i18n support

  • Heidelberg University
    • Germany
    • Higher Education
    • 700 & Above Employee
    • Hiwi als Full-stack Developer
      • Oct 2022 - Dec 2022

      • extending existing features related to user • Developed new features in Spring Boot with a PostgreSQL database and Hibernate SQL • Contributed to front-end development using React and Vue • Improved the reliability of frontend tests • extending existing features related to user • Developed new features in Spring Boot with a PostgreSQL database and Hibernate SQL • Contributed to front-end development using React and Vue • Improved the reliability of frontend tests

  • Infoluvial
    • Webentwickler
      • Jan 2022 - Oct 2022

      • Project lead of a virtual global team • Developed 30+ individual pages using React • Reduced used data from the website by 70% • Improved the website response time per page by up to 85% • Project lead of a virtual global team • Developed 30+ individual pages using React • Reduced used data from the website by 70% • Improved the website response time per page by up to 85%

Education

  • Ruprecht-Karls-Universität Heidelberg
    Bachelor, Informatik
    2018 - 2023

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