Lilian Kasem
Principal Software Engineer at Microsoft
Seattle, Washington, United States
Summary
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Rockstar🎓
Top SchoolLilian Kasem is a Senior Software Engineer at Microsoft with 11 years of experience building cloud-native backend systems, primarily focused on Azure Functions and WebJobs. She has driven core improvements to the .NET worker and host runtime—migrating keyvault auth to Azure.Identity, handling gRPC invocation flows, and hardening singleton storage locks—demonstrating deep expertise in distributed function runtimes and reliable server-side infrastructure. Based in Seattle, she blends production-grade engineering with template and SDK work, adding .NET 7 and framework compatibility to Azure Functions templates. Beyond routine bug fixes, Lilian’s contributions show a knack for modernizing long-lived codepaths and anticipating edge cases that improve platform resilience for thousands of serverless users.
11 years of coding experience
11 years of employment as a software developer
BSc (Hons) Computer Science with Professional Practice, BSc (Hons) Computer Science with Professional Practice at Brunel University of London
Stackoverflow
21reputation
2kreached
2answers
0questions
Github Skills (24)
azure-keyvault10
protocol-buffers10
net10
azure-webjobs-sdk10
azure-functions10
dotnet10
microsoft-azure10
netframework10
asp-net10
singleton10
vault10
dotnet-core10
azure10
csharp10
concurrency10
Programming languages (17)
Github contributions (5)
Azure/azure-functions-dotnet-worker
Oct 2021 - Jan 2023
Azure Functions out-of-process .NET language worker
Role in this project:
Back-end Developer
Back-end DeveloperContributions:64 releases, 715 reviews, 66 commits in 1 year 3 months
Contributions summary:Lilian primarily contributed to the core functionality of the .NET worker for Azure Functions. Their work involved bumping protobuf versions, modifying protocol buffer definitions, and handling invocation cancel messages within the Grpc framework. The user also made changes to the Function indexing and sample configuration, demonstrating a focus on improving the worker's internal processes. Furthermore, they addressed the implementation of SDK-type binding and added support for deferred binding attributes.
azure-functionsdotnetout-of-process
Azure/azure-functions-host
Sep 2021 - Jan 2023
The host/runtime that powers Azure Functions
Role in this project:Back-end Developer
Back-end DeveloperContributions:1286 reviews, 80 commits, 296 PRs in 1 year 4 months
Contributions summary:Lilian primarily focused on refactoring and improving the key vault secrets repository within the Azure Functions host. They migrated the code to use Azure.Identity for authentication, deprecating the older Microsoft.Azure.KeyVault library. This change involved code modifications across multiple files to implement the new authentication method and ensure existing functionalities were preserved. Furthermore, they addressed minor issues like spelling corrections.
azure-functionsazure-webjobs-sdkserverlessazure
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