Joonas Griesinger
Freelance Software Engineer at Griesoft
Zwickau, Saxony, Germany
Summary
👤
Senior🎓
Top SchoolJoonas Griesinger is a freelance software engineer with nine years of experience building mobile and web applications, AI automation, and e-commerce platforms. He blends hands-on development with entrepreneurial experience from founding and leading a funded mobile startup, giving him practical insight into product, architecture, and team leadership. Technically comfortable across .NET, Orchard Core, Xamarin, Node.js and Azure, he has delivered B2B e-commerce solutions and a custom Orchard Core shop while contributing to open-source projects. Based in Zwickau, Germany, he favors independent, continuous learning and pursues personal projects that explore emerging tech. Notably, his background spans everything from games and IoT to server infrastructure, which helps him connect novel ideas to pragmatic implementations. Always working on something under construction, he thrives on turning experimental prototypes into production-ready systems.
9 years of coding experience
3 years of employment as a software developer
InternetMatriculation Examination, HIGH SCHOOL/SECONDARY DIPLOMAS AND CERTIFICATES, Matriculation Examination, HIGH SCHOOL/SECONDARY DIPLOMAS AND CERTIFICATES at Rudolf Steiner school in Helsinki
English, German, Finnish, c#, Spanish
Stackoverflow
41reputation
939reached
1answer
3questions
Github Skills (55)
nuget10
cms10
xamarin-android10
modular10
ios-framework10
xamarin-ios10
mvvmcross10
asp-net10
google-recaptcha10
wcf10
tvos10
dotnet-core10
wpf10
recaptcha10
ios9
Programming languages (2)
Github contributions (5)
griesoft/xamarin-rating-gateway
Sep 2020 - Dec 2022
A rating gateway which takes care of when to prompt the user to review your Xamarin application by evaluating through a set of defined conditions each time a rating action is triggered by the user.
Contributions:7 releases, 1 review, 12 PRs in 2 years 3 months
takesxamarin-rating-gatewaydefinedrating-systemrating
griesoft/newslettersub
Feb 2020 - May 2022
A very simple newsletter subscription service for ASP.NET Core, which provides functionality to manage and maintain a collection of contacts and newsletter subscribers.
Contributions:4 releases, 20 commits, 10 PRs in 2 years 3 months
contactsnewsletter-serviceasp-net-mvcaspnetasp
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