Viktor Rennert
Freelance Software Developer at Freelancer
Berlin Metropolitan Area Germany
Summary
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SeniorViktor Rennert is a seasoned freelance software developer with 11+ years building full-stack web applications, specializing in PHP, JavaScript/ECMAScript and MySQL across Windows and Unix environments. He has deep front-end expertise with YUI and Kendo UI for rich internet applications and practical back-end skills demonstrated by optimizing in-house CMS systems. Viktor is an active open-source contributor with C++ experience—most notably improving ChaiScript’s enum registration, type conversions and unit tests—showing strong attention to language internals and QA. He also brings game-development and parallel-programming experience with OpenGL and a solid understanding of computer hardware, enabling pragmatic solutions that cross software and systems boundaries. Based in the Berlin area, he combines hands-on coding with long-term freelance delivery and engineering hardening.
11 years of coding experience
4 years of employment as a software developer
English, German
Github Skills (9)
unit-testing10
embedded-language10
scripting-language10
lang10
script10
c-language10
cpp10
cprogramming-language10
template-metaprogramming9
Programming languages (3)
Github contributions (5)
ChaiScript/ChaiScript
Jan 2016 - Jan 2016
Embedded Scripting Language Designed for C++
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:6 commits, 2 PRs, 3 comments in 24 days
Contributions summary:Viktor contributed to the C++ embedded scripting language by adding template specializations to register bulk constants for enums. They also added unit tests to cover the enum registration functionality, ensuring proper functionality. Additionally, they refactored and improved type conversions, including initializers lists, which shows a deep understanding of the language's internal workings and testing frameworks.
scriptingcppembedded-scripting-languagec99c-plus-plus
Destination-Design/invoice-ninja
Mar 2015 - Sep 2016
Contributions:9 commits, 6 pushes, 12 branches in 1 year 6 months
laravelphpinvoicing
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