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Harsh DubeyHD
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Harsh Dubey

@harshdubey5

Associate Software Development Engineer at Zintlr who built carrier-agnostic SIP calling and real-time AI voice products.

India
Message

At Zintlr, I engineered an in-house SIP calling stack with Kamailio and Asterisk, integrating multiple carriers behind a unified abstraction layer. The calling experience is available through a WebRTC browser SDK, REST APIs, a Salesforce Lightning app, and an Electron desktop app.

I also built a real-time AI voice agent and an in-call sales coach on the calling layer. Both surfaced responses and coaching cues within about two seconds under live call conditions.

At Zintlr, I built a meeting assistant for Microsoft Teams, Chrome, and Electron, with live transcription, AI-generated notes, and conversation analysis. I also developed AI-powered lead intelligence that enriches contact profiles with company information and lead scores.

Earlier, I built a product with 15+ features at Sahayak Innovations and led frontend development for Acegrade’s student platform, which served 10,000+ users. At Zintlr as an SDE Intern, I built server-side rendered applications and static websites with Next.js, Tailwind CSS, and Redux.

Experience

Work history, roles, and key accomplishments

ZI
Current

Associate Software Development Engineer

Zintlr

Aug 2025 - Present (1 year 3 months)

Engineered a carrier-grade SIP calling stack with Kamailio and Asterisk, integrated multiple VoIP carriers, and built AI-powered voice agents and coaching systems. Delivered calling experiences across Salesforce Lightning and Electron apps, and developed AI-driven lead intelligence and meeting bots.

SI

Developer

Sahayak Innovations

Dec 2024 - Jun 2025 (6 months)

Built a full product from scratch with 15+ features across education, productivity, and accessibility domains. Achieved 98% SEO scores, sub-2s page load times, and 95+ Lighthouse performance scores, owning the full development lifecycle.

AC

Software Engineer

Acegrade

Feb 2024 - Apr 2025 (1 year 2 months)

Led frontend development for a student platform serving 10,000+ users, building 6+ features including grade prediction, time tracking, mock tests, campus navigation, and performance analytics. Optimized backend API response times by 25%.

ZI

SDE Intern

Zintlr

May 2024 - Nov 2024 (6 months)

Built server-side rendered applications and static websites using Next.js with Tailwind CSS and Redux, contributing to improved load times, better SEO, and a scalable frontend architecture.

Education

Degrees, certifications, and relevant coursework

Indian Institute of Technology, Madras logoIM

Indian Institute of Technology, Madras

Bachelor of Science, Data Science and Programming

Grade: 7.5/10

Pursuing a B.S. in Data Science and Programming with a GPA of 7.5/10.

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