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Subhrajit Dasgupta

@subhrajitdasgupta

Senior Software Engineer | Frontend Specialist | React.js, Next.js, TypeScript, JavaScript, AI, Three.js, Framer, Redux, Node.js, NestJS, Express.js,

India

Message

What I'm looking for

I'm looking to build scalable, high-performance web products where I can lead frontend architecture, ship real-time and accessible user experiences, mentor engineers, and work across React, Next.js, TypeScript, and the full stack.

At Khyaal, I architect and lead Next.js and React platforms serving 5M+ senior citizens. I improved Lighthouse scores to 92, cut page load time by 40%, and built scroll-linked experiences that increased engagement by 35%.

I've shipped Khyaal Assistant for 50K+ users as the sole frontend engineer, building real-time WebSocket streaming with first-token latency under 300ms and conversational commerce that increased in-chat conversion by 25%. I also delivered AI-guided insurance, customer-data, payments, authentication, and analytics experiences across web and native-app WebViews.

Previously at Thumbtack Technologies, I led frontend development for web applications, e-commerce platforms, and customer-engagement products using React, Next.js, Redux, and TypeScript. My work included Bajaj Beyond, Aircon, NOVA by IIFL, and IIFL Securities.

I enjoy creating reusable frontend architecture, accessible interfaces, and reliable real-time systems. I also mentor engineers on React, TypeScript, code quality, and engineering standards.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Khyaal

Nov 2024 - Present (1 year 9 months)

Architected and led the build of the Khyaal platform serving 5M+ senior citizens, raising Lighthouse to 92 and cutting page load 40%. Built AI chat products and a Customer Data Platform, and set frontend engineering standards while mentoring engineers.

Senior Frontend Developer

Thumbstack Technologies

Oct 2021 - Nov 2024 (3 years 1 month)

Led the frontend development of various large-scale projects, including dynamic web apps, e-commerce platforms, and customer engagement applications. Directed a team of developers, ensuring on-time delivery of projects and receiving positive client feedback. Mentored junior developers, fostering a culture of continuous learning, which improved team efficiency by 15%.