Harsh Manwani
Open to workSoftware Engineer · Founding Engineer · Builder
Software engineer, 8+ years shipping web, mobile, and AI products that people actually use. Founding engineer at YC-backed and acquired startups, with work reaching 100K+ users. Now building Supercut, ihateaudio, Phren, RemixMart, and Imagefall.
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Building
Private AI video editor that runs entirely on-device. Prompt-driven edits, zero footage uploads. In the browser and on desktop.
Free audio toolkit that runs in the browser. 49 tools to trim, convert, merge, and boost, with no uploads and no signup.
Personal alignment engine. One-keystroke thought capture, background AI classification, and a calm daily view that surfaces only what matters.
100+ upvotesv2 soonremixmart.comCommunity platform for AI image and video generation. Top models in one place, with remix and discovery built in. V2 with ad remixing launches soon.
AI product photography for Shopify. Turns one phone photo into packshots, lifestyle and on-model shots, product video, and SEO alt text.
Experience
- Rebuilding a platform that serves 80K+ enterprise users from scratch as AI-native software
- Bootstrapped the new pivot end to end: architecture, ops, backend, frontend, the Chrome extension, and AI agent integrations
- Architected a multi-agent clinical AI system where LLM agents critique and validate outputs before surfacing recommendations
- Built the cross-platform mobile app (React Native), AI-driven clinician dashboards, and HIPAA-compliant backend infrastructure end to end
- Personally designed the entire brand identity, logo, design system, and product ecosystem visual language, alongside engineering the platform
- Led development of the AI-powered Workflow feature, the product's core USP, automating 50K+ leads monthly for 100+ B2B clients
- Designed and shipped a scalable design system from scratch, improving UI consistency across the entire platform
- Led the frontend team for NativeX, an online learning platform
- Scaled the product to 100K+ users and significantly boosted revenue
- Established coding standards, mentored junior devs, and shipped complex features across the platform
- Built the entire product from scratch: social platform for seniors across web (Next.js) and mobile (React Native)
- Shipped real-time notifications, an internal admin tool, and backend services (NestJS, MongoDB, AWS)
- Grew to thousands of active users before acquisition
- Delivered 4 client projects including BCG, JCurve, and Agility CIS
- Built data-intensive applications for complex business scenarios
- Won the company's internal Automation Hackathon
- Built the Restaurant POS WebApp from scratch using React.js
- Part of a comprehensive suite of 14 applications for restaurant management
- Built a landscape change monitoring website using BHUVAN satellite imagery at India's national space agency
- Conducted a case study on Hyderabad using Google Earth tools
Projects
Convert any image to vector. Figma plugin with 75K+ users.
Figma Plugin · SaaS · Desktop App
Track and split expenses between groups. Smart settlements, unlimited trips, and real-time syncing.
Mobile App · React Native · Full Stack
Full branding, logo design, and e-commerce store for a French jewelry brand.
Branding · E-commerce · Design
Complete branding, logo, business cards, and e-commerce website for a jewelry brand.
Branding · E-commerce · Design
Brain exercise mobile game for kids and creative professionals.
Link sharing platform with feed and upvotes.
Real-time collaborative drawing app with multiple boards.
Simple blockchain implementation in JavaScript.