Jai Santhosh

Software Engineer

London, United Kingdom17 yrs 6 mos experience

Most Likely To SwitchAI Enabled

Key Highlights

17+ years of experience in engineering leadership.
Architected one of the world's first progressive web apps.
Active speaker at major tech conferences.

Stackforce AI infers this person is a SaaS and Fintech expert with strong frontend and product development skills.

Contact

Skills

Core Skills

Artificial Intelligence (ai)Frontend DevelopmentM365 CopilotMicrosoft SearchWeb EngineeringGame Development

Other Skills

AJAXAPIsApacheArchitectureArchitecturesCC++CSSCascading Style Sheets (CSS)Cross-functional Team LeadershipData StructuresElectronFull-Stack DevelopmentGenAIHTML

About

Engineering leader with 17+ years of experience building and scaling products across Microsoft, Flipkart, Yahoo, and startups. I'm passionate about delivering impactful user experiences through robust frontend architecture, web performance, and product innovation. At Microsoft, I've led cross-org efforts in the M365 Copilot product, commercial Windows experiences, and Microsoft Search—mentoring engineers, influencing design decisions, and driving large-scale product initiatives. Prior to that, I architected Flipkart Lite (one of the world's first PWAs), and scaled multiple consumer experiences. My leadership style focuses on nurturing technical depth, enabling ownership, and creating thriving team cultures. I’ve also been an active tech community member—speaking at JSConf, Chrome Dev Summit, and more. Let’s connect if you’re passionate about building great teams, delightful products, or pushing the boundaries of what’s possible on the web.

Experience

17 yrs 6 mos

Total Experience

3 yrs 6 mos

Average Tenure

8 yrs 3 mos

Current Experience

Microsoft

3 roles

Principal Software Engineer

Promoted

Mar 2024 – Present · 2 yrs 1 mo

Leading M365 Companion App and commercial Copilot experiences for Windows. Drove end-to-end ownership of notifications and commercial UX across the Windows shell. Collaborating with Microsoft AI and Windows teams to deliver futuristic GenAI experiences. Spearheaded incubation of generative UX interactions for commercial productivity scenarios.

GenAIMicrosoft CopilotArtificial Intelligence (AI)Frontend DevelopmentWeb Performance

Principal Engineering Manager

Promoted

Sep 2019 – Mar 2024 · 4 yrs 6 mos

Built and led a high-performing team delivering M365 Copilot Chat and Microsoft Search experiences. Owned key APIs for Copilot extensibility and architected middleware layers powering Outlook, Teams, SharePoint, and Office. Played a pivotal role in org-wide search integration and performance. Active driver of frontend hiring and Web Excellence community (1,000+ engineers).

M365 CopilotMicrosoft SearchAPIsMiddlewareFrontend Development

Senior Software Engineer

Dec 2017 – Aug 2019 · 1 yr 8 mos

Cleartax india

Engineering Manager

Mar 2016 – Nov 2017 · 1 yr 8 mos · Bengaluru, Karnataka, India

Managed the entire Web Engineering team (15 engineers) across 7 product lines. Architected native and hybrid apps using React and Electron. Launched key products like ClearSave, TDS, GST, and Offline Invoicing, bringing web-first scalability and offline capabilities to enterprise finance tools.

ReactElectronWeb Engineering

Flipkart

UI Engineer-III

Jan 2014 – Mar 2016 · 2 yrs 2 mos · Bengaluru, Karnataka, India

Led the architecture of Flipkart Lite, one of the world's first progressive web apps (PWAs). Rebuilt the Flipkart desktop site using a server-side rendered React and Node.js stack. Contributed to flash sales architecture, frontend analytics pipeline, and experimentation with React Native. Authored in-house tools like phrontend and phrontend-webpack.

ReactNode.jsProgressive Web Apps (PWAs)Frontend Development

Odinix inc

Principal Engineer

Feb 2013 – Dec 2013 · 10 mos · Bangalore

Designed and developed an educational iOS game, Turbo Math Pirate Challenge, including frontend game UI and backend services (Node.js, MySQL). Led architecture and release of a performance-intensive mobile product in an early-stage startup environment.

iOS DevelopmentNode.jsMySQLGame Development