Principal Software Engineer

** Overview*
* Microsoft is a company where passionate innovators come to collaborate, envision what can be and take their careers further. This is a world of more possibilities, more innovation, more openness, and the sky is the limit thinking in a cloud-enabled world.

Microsoft's Azure Data engineering team is leading the transformation of analytics in the world of data with products like databases, data integration, big data analytics, messaging & real-time analytics, and business intelligence. The products our portfolio include Microsoft Fabric, Azure SQL DB, Azure Cosmos DB, Azure PostgreSQL, Azure Data Factory, Azure Synapse Analytics, Azure Service Bus, Azure Event Grid, and Power BI.

Our mission is to build the data platform for the age of AI, powering a new class of data-first applications and driving a data culture.

Within Azure Data, the databases team builds and maintains Microsoft's operational Database systems. We store and manage data in a structured way to enable multitude of applications across various industries. We are on a journey to enable developer friendly, mission-critical, AI enabled operational Databases across relational, non-relational and OSS offerings.

We are hiring a Principal Software Engineer to join the Azure PostgreSQL Horizon DB storage team. The HorizonDB Storage team builds and operates the core durable storage layer for Azure HorizonDB, Microsoft's next‑generation cloud‑native PostgreSQL service. This team is responsible for ensuring data durability, correctness, performance, scalability, and cost efficiency across a disaggregated compute‑storage architecture that operates at scale.

We do not just value differences or different perspectives. We seek them out and invite them in so we can tap into the collective power of everyone in the company. As a result, our customers are better served.

** Responsibilities*
* + Oversees overall system architecture for a critically important and high-impact space such as a connection with deep technical domains or a broad set of products or services at critical junctures (e.g., early in development, urgent time horizon).

+ Creates a strategic roadmap for the system architecture by considering how related systems will evolve in the near future. Ensures architecture design is appropriately authored, documented, and reviewed.

+ Establishes, influences, and ensures policies and procedures for developing extensible, reusable, and maintainable code, identifying and addressing coding issues, and conducting effective code reviews for a critically important and high-impact space such as those with deep technical domains connections or a broad set of products or services at critical junctures (e.g., early in development, urgent time horizon). Writes proof of concept code as needed and may develop code directly as needed.

+ Maintain operations of live service as issues arise on a rotational, on-call basis.

Embody our culture ()  and values ()

** Qualifications*
* ** Required/Minimum Qualifications*
* + Bachelor's Degree in Computer Science, or related technical discipline AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience.

*
* Job Requirements:

Other & Additional*
* Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include, but are not limited to the following specialized security screenings:
Microsoft Cloud Background Check:

+ This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.

** Preferred/Additional Qualifications*
* + 8+ years of experience in developing and shipping system level features in an enterprise production backend server system.

+ 2+ years of experience building and supporting distributed cloud services with production grade.

+

Experience with internals of PostgreSQL or similar Enterprise Database Management system, including Query processing, Storage Engine and High Availability.

+ Experience building Distributed Systems with strong guarantees.

+ Understanding of data…