Microsoft

Principal Software Engineer - Platforms

Hyderabad · On-site · 12+ yrs · Principal · Full-time

  • c++
  • c#
  • c
  • java
  • javascript
  • python

Principal engineer to lead AI/agentic Windows platform development with 12+ years experience in C++/C#.

Apply on Microsoft's site Ask for a referral Interview prep

Posted 13 Oct 2026 · found on Microsoft's own careers page

Interview prep: questions this posting points to

Written from 8 current Platform postings on Microsoft's own careers page — not questions Microsoft has asked.

  1. Fabric is described as a 'high throughput and multi-tenant service.' Walk me through how you'd design tenant isolation so one noisy customer can't degrade performance for others, and how you'd detect that it's happening in production.
    From the posting: “Work with all aspects of a high throughput and multi-tenant service.``` · Collaborate effectively within the team and with partner teams across Microsoft. · Be part of the on-call rotation for maintaining service health. The fragment used: "high throughput and multi-tenant service"”
  2. You're on-call for Fabric and get paged for a sudden spike in latency affecting a subset of tenants during peak hours. Walk me through how you'd triage this.
    From the posting: “Be part of the on-call rotation for maintaining service health.”
  3. We've got a metric that says our service reliability is degrading, but you're also supposed to be shipping a new feature your product manager is excited about. How would you handle that tension?
    From the posting: “Champion operational excellence via established metrics, process governance, and policy controls for regular assessment and improvement.”
See all 63 questions More on this prep
Read the full job description

Overview

Do you want to reinvent how a billion people use their PCs, with AI agents that get things done for them? Microsoft's mission is to empower every person and every organization on the planet to achieve more. Windows is central to Microsoft's hybrid AI story, and we're reimagining it as the home for intelligent, agentic computing.The Windows Agent & Growth Innovations team in Microsoft India builds the AI and agentic experiences in Windows: agents that understand what users want and complete tasks for them across apps, devices and the cloud. You'll work on current and next-generation Windows, alongside teams across Windows, Microsoft AI and other product groups worldwide.

We come together with a growth mindset and build on our values of respect, integrity and accountability to create a culture of inclusion where everyone can thrive.

Responsibilities

We're looking for a senior technical leader with strong C++/C# skills and a passion for AI to build agentic experiences that reach hundreds of millions of customers. Lead the architecture and design of complex, cross-team AI and agentic features on Windows. Deliver high-quality, performant code, with a focus on latency, memory and reliability across a wide range of devices. Define quality and success metrics for AI experiences, including evaluation, reliability and responsible AI.

Work with product, design and data science partners to turn ambiguous ideas into shipped customer value.Mentor engineers and raise the engineering bar through modern, AI-assisted practices.

Qualifications

12+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python. Hands-on experience building AI-powered products, such as LLMs, agent frameworks, semantic search or on-device inference. Solid Windows or systems-level engineering experience. Expereince in building scalable and reliable platform.

Collaborate with mutiple groups and teams to drive technical strategic decisions. Proven cross-group technical leadership and excellent communication skills. #W+DJOBS #WinAGI This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled. Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances.

If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.

Members get roles like this as soon as we find them on the company's careers page, and paid plans email the ones that match their resume.

Get new roles first — free

More at Microsoft