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ENGINEER BY CRAFT. BUILDER BY NATURE.

Syed Jahangir Peeran.

Complex problems.
Thoughtful solutions.

Senior Software Engineer at Microsoft AI. Building and Scaling Copilot Super App and the platform behind it - across web, desktop and mobile

Explore my work Connect on LinkedIn
San Francisco Bay Area
Syed Jahangir Peeran
A HUMAN BEHIND THE CODEAlways curious. Always building.
CURRENTLY AT MICROSOFT

Architecting Copilot.

01 / SELECTED WORK

Built with a single purpose
to Empower.

A few of the products and platforms I've helped move forward at Microsoft.

  • 6+ years at Microsoft

    Built products and platforms across emerging markets, Microsoft 365, and Copilot.

  • Authentication at Copilot scale

    Architected and led core authentication supporting billions of auth tokens daily.

  • Technical team leadership

    Led a team of engineers through Copilot Desktop web-stack modernization.

  • Server-driven experiences

    Led server-side rendering for the Copilot Desktop landing page and designed data fetching with TanStack Server Functions.

  • Modern chat streaming

    Modernized Copilot responses with Web Components and server-generated HTML.

  • Cross-org architecture

    Aligned client-to-service contracts across teams and championed code quality through reviews and knowledge sharing.

Products I've contributed to

Across AI, productivity, and collaboration.

02 / THE JOURNEY

Growing through
the work.

From my first internship to leading engineering initiatives. One constant: finding better ways to build.

Microsoft 2019 - TODAY

  1. Senior Software Engineer

    2026 - Present

    Copilot / Web & Desktop

    Shaping the next Copilot experience: reliable authentication, server-driven interfaces, faster chat streaming, and a consistent foundation across teams.

  2. Software Engineer II

    2022 - 2025

    Microsoft 365 / Copilot & Mobile

    Led core authentication and infrastructure initiatives, guided a team of engineers through desktop web modernization, and built across web and mobile.

  3. Software Engineer

    2020 - 2022

    Microsoft 365 / Growth & Emerging Markets

    Built products for small businesses, from responsive interfaces to services, queues, and scheduled jobs. Owned the Kaizala Action service for 6.5M+ users.

  4. Software Engineering Intern

    2020

    Microsoft Kaizala

    Helped prepare Kaizala for its next millions of customers through caching, targeted notifications, and measurable infrastructure savings.

  5. Software Engineering Intern

    2019

    Microsoft Forms Pro

    Prototyped asynchronous notification infrastructure, real-time log dashboards with SignalR, and email spam-filtering integrations.

03 / A LITTLE ABOUT ME

A systems thinker.
A product person.

I like the big picture.
And the details that make it work.

I'm a full-stack engineer drawn to the space between thoughtful architecture and a great user experience. At Microsoft, I work on making AI experiences not just possible, but reliable and useful.

I care about clear code, shared understanding, and helping the people around me grow. That has meant leading teams and sharing knowledge.

Indian Institute of Information Technology

Bachelor of Technology
Computer Science and Engineering

2016 - 2020

Interfaces & experiences

  • React
  • TypeScript
  • JavaScript
  • TanStack
  • HTML & CSS

Services & cloud

  • C# / .NET
  • Node.js
  • Azure
  • Cosmos DB
  • SQL
  • Redis

Beyond the browser

  • React Native
  • SwiftUI
  • Swift
  • Kotlin
  • Objective-C

How I build

  • System design
  • Security
  • Performance
  • Code quality
BEYOND THE DAY JOB

Better, together.

Open source is where curiosity meets community. I've contributed to Microsoft Teams JS SDK, Fluent UI, and the Travel Mate Android app.

Find me on GitHub

A FEW MILESTONES ALONG THE WAY

2026

Engineering excellence

Recognized by M365 Core and Copilot leadership for championing PR reviews and code quality.

2023

4th place, worldwide

Microsoft Global Hackathon: reimagining mobile productivity with LLMs and generative AI.

2019

1st runner-up

Google Build for India Hackathon.

04 / WHAT'S NEXT?

Let's build something meaningful.

A thoughtful team. An interesting challenge. A chance to make a difference. If that sounds like what you're building, let's talk.

LET'S CONNECT

For opportunities and conversations, reach out on LinkedIn.

Connect on LinkedIn