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👋Principal Program Manager @ Microsoft

Sajeetharan Sinnathurai

Empowering developers through Cloud Platforms, Databases, and AI Innovation

Top 10
Stack Overflow Global
13+ Years
Software Industry
GDE & MVP
First in Sri Lanka
View My WorkRead My Blogs
☁️ Cloud Architecture🗄️ Azure Cosmos DB🤖 AI/ML🎤 International Speaker💻 Open Source📚 Community Leader

About Me

Principal Product Manager with 13 years of experience in the software industry, including 4 years in product management and 9 years as a developer specializing in cloud platforms. I’m passionate about creating tools that empower developers, with a strong focus on developer experience and database solutions.

Outside of work, I'm deeply involved in the tech community. Over the past decade, I've been the top Stack Overflow contributor from Sri Lanka and ranked in the global top 10 for Azure, Angular, and Azure Cosmos DB. As the first Google Developer Expert and Microsoft MVP in developer technologies from Sri Lanka, I actively contribute to open-source projects and speak at conferences worldwide.

Interested in web development or cloud? Feel free to reach out!

🏆
Top Contributor
#1 Stack Overflow contributor from Sri Lanka
🎯
Expertise
Cloud Platforms, Databases, Developer Tools
🌍
Global Impact
International speaker & OSS contributor
🌟 GDE & MVP

Skills & Expertise

☁️

Cloud & Infrastructure

AzureAzure Cosmos DBKubernetesDockerCI/CD
💻

Development

JavaScript/TypeScriptPythonReactAngularNode.js
🗄️

Databases & Data

NoSQLSQLVector SearchData ModelingPerformance Tuning
🤖

AI & Innovation

AI/MLDeveloper ToolsSDK DesignAPI DevelopmentDevEx

Professional Journey

Dec 2023 - Present

Principal Product Manager

Microsoft

Leading product strategy and developer experience for Azure Cosmos DB and AI initiatives. Driving innovation in cloud databases, vector search, and AI-powered developer tools.

Jul 2021 - Dec 2023

Senior Product Manager

Microsoft

Led developer experience initiatives for Azure Cosmos DB, focusing on SDKs, tooling, and developer-centric features. Drove adoption through community engagement and technical evangelism.

May 2019 - Jul 2021

Product Manager

Microsoft

Started product management journey at Microsoft, focusing on developer tools and cloud platform initiatives. Built foundation for developer experience strategy and community engagement programs.

Jan 2017 - May 2019

Senior Software Engineer

99X Technology

Developed enterprise-scale applications and led technical implementations for global clients. Specialized in cloud solutions, modern web frameworks, and agile development practices.

2012 - 2017

Software Engineer & Developer

Various Companies

Built expertise in full-stack development and modern web technologies. Contributed to open-source projects and established presence in the developer community, becoming the top Stack Overflow contributor in Sri Lanka.