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Principal Software Engineer

Microsoft

$139,900 - $304,200
Oct 2, 2025
Redmond, WA, US
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Microsoft's Azure Data engineering team is looking to enhance the scalability and reliability of the Cosmos DB Control Plane, a global service responsible for provisioning, configuring, and securing Cosmos DB resources, to support the age of AI and a new class of data-first applications.

Requirements

  • 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C-Sharp, Java, JavaScript, or Python
  • 5+ years of experience building system designs and solutions on distributed systems.
  • Experience designing, building, and operating large-scale NoSQL cloud databases (e.g., Cosmos DB, DynamoDB, Cassandra, MongoDB) with emphasis on scalability, availability, and observability.
  • Experience collaborating with partner teams to ensure seamless integration, end-to-end testing, and operational readiness, including telemetry, scalability validation.
  • Experience engaging directly with customers to understand scenarios, validate requirements, and incorporate feedback into design and solution improvements.

Responsibilities

  • Lead architectural design for complex, large-scale services, producing clear design documents that capture dependencies, trade-offs, and long-term scalability.
  • Build and maintain high-quality, extensible, and reliable code, while defining comprehensive test strategies to ensure functionality, prevent regressions, and validate security.
  • Collaborate with partner teams to ensure seamless integration, end-to-end testing, and operational readiness, including telemetry, scalability validation
  • Ensure live-site excellence by leading on-call operations, improving troubleshooting guides, telemetry, and automation to enhance on-call effectiveness; recommend user-facing documentation and additional test coverage to reduce incidents.
  • Engage directly with customers to understand scenarios, validate requirements, and incorporate feedback into design and solution improvements.
  • Mentor engineers and lead by example in producing maintainable, secure, and performant code that adheres to design specifications.
  • Produce technical blogs and content that showcase the scale, innovation, and engineering excellence of Cosmos DB, helping grow awareness and adoption across the developer community.

Other

  • Ability to meet Microsoft, customer and/or government security screening requirements are required for this role.
  • Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.