Fabian Meiswinkel
Principal Software Engineer - Azure Cosmos DB at Microsoft
Chemnitz, Saxony, Germany
Summary
🤩
Rockstar🎓
Top SchoolFabian Meiswinkel is a Principal Software Engineer at Microsoft specializing in Azure Cosmos DB, with over two decades of experience delivering large-scale projects across Microsoft, Java and Spark ecosystems. He combines deep hands-on engineering—contributing to high-profile Azure SDKs for Java, .NET and JavaScript—with customer-facing expertise from presales through deployment, giving him a rare perspective on both field requirements and Redmond decision-making. Fabian has improved SDK reliability and performance (session management, id encoding, query metrics and gateway caches) and added user-facing APIs and benchmarks that bolster production observability. A seasoned mentor and stakeholder communicator, he excels at translating complex distributed-database challenges into practical, robust solutions. Based in Chemnitz, Germany, he brings an uncommon blend of frontline customer insight and internal product influence that speeds real-world adoption of cloud database features.
8 years of coding experience
9 years of employment as a software developer
Abitur, Abitur at Carl-Jacob-Burckhardt Gymnasium
German, English
Stackoverflow
16reputation
1kreached
1answer
0questions
Github Skills (30)
unit-testing10
javascript10
net-sdk10
back-end-development10
session-management10
azure-cosmos-db10
testing10
typescript10
java10
cosmosdb10
javas10
sdk10
dotnet-sdk10
performance-optimization10
typescript-types10
Programming languages (12)
Github contributions (5)
Azure/azure-sdk-for-java
Aug 2020 - Jan 2023
This repository is for active development of the Azure SDK for Java. For consumers of the SDK we recommend visiting our public developer docs at https://docs.microsoft.com/java/azure/ or our versioned developer docs at https://azure.github.io/azure-sdk-for-java.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3110 reviews, 235 commits, 922 PRs in 2 years 5 months
Contributions summary:Fabian's primary contributions involved enhancing the Azure Cosmos DB Java SDK. Their work focused on enabling query metrics, addressing null pointer exceptions in the GatewayAddressCache, and adding a new API, `CosmosContainer.readAllItems`, to retrieve all documents of a logical partition. The user also contributed to refactoring, code improvements in RNTBD, and improving the performance of operations with data in the connector. This included fixes to edge cases and ensuring performance across a diverse set of workloads.
azureazure-sdkjavaazure-servicesazure-resources
Azure/azure-cosmos-dotnet-v3
Dec 2019 - Nov 2022
.NET SDK for Azure Cosmos DB for the core SQL API
Role in this project:Backend Developer
Backend DeveloperContributions:1095 reviews, 18 commits, 55 PRs in 2 years 11 months
Contributions summary:Fabian focused on enhancing the performance and functionality of the Azure Cosmos DB .NET SDK. They implemented latency percentiles for benchmarking and addressed typos within the benchmark tool. Additionally, the user fixed a bug related to session token handling during upsert operations and made adjustments to improve the consistency of internal caches in the session management for query-only workloads. This work contributed to improved reliability and a more robust SDK.
azure-cosmos-dbdotnetsql
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