Tobias Tengler
Senior Software Engineer at ChilliCream
Switzerland
Summary
🤩
Rockstar🎓
Top SchoolTobias Tengler is a Senior Software Engineer based in Switzerland with seven years of hands-on experience building full-stack systems and improving developer tools. He has a strong track record in both JavaScript/TypeScript and .NET ecosystems, contributing notable enhancements to Facebook's Relay—improving type safety, language-server features and developer UX—and implementing multipart request handling for ChilliCream's Hot Chocolate GraphQL server. Tobias progressed from apprentice to senior roles through focused backend and middleware work, demonstrating rapid technical growth and production-grade delivery at companies like artiso and Digitec Galaxus. He combines practical engineering with attention to type systems and tooling, making complex integrations and uploads more robust and developer-friendly. Colleagues value him for shipping reliable, developer-centric features that reduce runtime errors and improve maintainability.
7 years of coding experience
7 years of employment as a software developer
Apprentice in Computer Science Subject Area: Software Development, Apprentice in Computer Science Subject Area: Software Development at Robert-Bosch-Schule UlmA Level, A Level at Joachim-Hahn-Gymnasium
English, German
Stackoverflow
7,146reputation
388kreached
98answers
3questions
graphql
top-5%
react-hooks
top-5%
typescript
top-1%
Github Skills (26)
javascript10
typescript10
asp-net-core10
wpgraphql10
typer10
relayer10
code-generation10
wordpress-graphql10
typescript-types10
dotnet-core10
graphql10
typescripts10
csharp10
react10
relay10
Programming languages (10)
Github contributions (5)
ChilliCream/graphql-platform
Mar 2021 - Jan 2023
Welcome to the home of the Hot Chocolate GraphQL server for .NET, the Strawberry Shake GraphQL client for .NET and Nitro the awesome Monaco based GraphQL IDE.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:193 reviews, 148 commits, 242 PRs in 1 year 10 months
Contributions summary:Tobias contributed to the implementation of a multipart request specification, focusing on changes to the HTTP multipart middleware. They made modifications to the code related to reading and processing multipart requests within the Hot Chocolate ASP.NET Core framework. These changes involved improvements to handling file uploads and integrating with other components within the framework.
popgraphql-serverc-sharpapollo-linkgraphql-dotnet
facebook/relay
May 2022 - Jan 2023
Relay is a JavaScript framework for building data-driven React applications.
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:72 reviews, 2 commits, 71 PRs in 7 months
Contributions summary:Tobias made significant contributions to the `facebook/relay` repository, a JavaScript framework for building data-driven React applications. They implemented features and addressed bugs related to type generation, specifically improving type safety for TypeScript, ensuring the correct handling of nullable and empty variable types, and enabling type-safe updaters. They also worked on code actions, adding support to rename operations, fragments, and their respective arguments, improving the developer experience within the framework. The user's work encompassed various aspects of the framework, from the type system to the language server and the LSP features.
data-drivenreactrelayreact-applicationsjavascript-framework
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