01
Build
Developer-first products
I translate real developer needs into tools, APIs, and experiences that make complex cloud and data workflows feel simple.
View selected projectsSajeetharan Sinnathurai
Principal Product Manager at Microsoft
I help developers build what's next.
I work at the intersection of developer tools, databases, and AI agents—turning complex technology into products, guidance, and communities that help people ship with confidence.
Speaking, mentoring, and community collaborations
Recognized expertiseGoogle Developer Expert · Microsoft MVPFirst developer from Sri Lanka to earn both honors
13+ yearsbuilding for developers
Global top 10Stack Overflow expertise
Internationalspeaker and community leader
Open sourcebuilder and contributor
Working across
AzureAzure Cosmos DBGitHub CopilotCoding AgentsDeveloper ExperienceOpen Source
About Me
~/about-me
❯cat intro.md
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
What I do
Turning deep technology into developer impact.
From product strategy to working code and community education, I focus on the parts of technology that help developers move faster.
02
Teach
Practical technical guidance
I share field-tested lessons about Azure, databases, developer tooling, and coding agents through articles and talks.
Read the latest insights03
Grow
People and communities
I mentor engineers and product leaders, contribute to open source, and create spaces where developers can learn together.
Explore mentoring
Mentoring Reviews
Contributions
Stack Overflow
#1from Sri Lanka
Top 10Azure, Angular, Cosmos DB