# Yashash Pugalia > Software engineer specializing in frontend (TypeScript, Svelte) with React and full-stack experience. Built and scaled systems at a Series A B2B AI startup used by Fortune 500 companies. Built open-source projects with 20M+ visits. Portfolio for Yashash Pugalia — founding frontend engineer at Haast, creator of Windows 11 Web (20M+ visits, #1 on Hacker News). Focused on product experiences at the intersection of AI and the web. ## Pages - [About](https://yashash.com/): Background, bio, and career overview - [Work](https://yashash.com/work): Professional experience and personal projects - [Highlights](https://yashash.com/highlights): Career highlights and photos - [Testimonials](https://yashash.com/testimonials): Endorsements from peers and industry leaders ## Experience - [Haast](https://yashash.com/work/haast): 2023 - Present, Sydney, Australia - Remote. Joined as the [founding frontend engineer](https://www.linkedin.com/posts/liamking97_ai-start-ups-score-245m-funding-windfall-activity-7101717182698459136-KD0C) at Pre-Seed for a B2B AI-native marketing & legal compliance platform used by enterprises. Built and owned the majority of the frontend for the core product. Scaled through [Seed (Airtree $6M)](https://www.capitalbrief.com/article/haast-raises-6-million-to-transform-compliance-with-ai-automation-24f00fee-be78-4b0b-be61-dc0019789885/) and into [Series A (Peak XV $12M)](https://www.axios.com/pro/enterprise-software-deals/2026/04/09/enterprise-compliance-haast-12-m) during rapid growth (4.5x YoY revenue), now used by **Fortune 500** companies - [Realm Labs](https://yashash.com/work/realm-labs): 2022 - 2023, New York, United States - Remote. Joined as an early full-stack engineer and built a 0→1 AI comic creation platform, owning end-to-end development and working closely with the [founder](https://yashash.com/testimonials?highlight=will-yoo) to ship the MVP from concept to production ## Projects - [Windows 11 Web](https://yashash.com/work/windows11-web): 2021 - 2022. Built browser-based Windows 11 replicas [win11-svelte](https://win11.yashash.com/) and [win11-react](https://win11.blueedge.me), reaching **20M+ visits** and earning [11K GitHub stars](https://github.com/yashash-pugalia), sponsored by Vercel - [Prosper Mint](https://yashash.com/work/prosper-mint): Full-stack SvelteKit MVP for personal finance: connect accounts and surface a clear view of spending, balances, and where your money goes. ## Contact - [GitHub](https://github.com/yashash-pugalia) - [LinkedIn](https://www.linkedin.com/in/yashash-pugalia) - [X (Twitter)](https://x.com/yashash_pugalia) - [Instagram](https://www.instagram.com/yashash_pugalia/) - [Discord](https://discord.com/users/759823534100316200) - [YouTube](https://www.youtube.com/@yashashpugalia) - [Email](mailto:yashash1511@gmail.com) ## Optional Detailed work and project write-ups. Skip if a shorter overview is enough. **Haast** (2023 - Present · Sydney, Australia - Remote) Joined as the [founding frontend engineer](https://www.linkedin.com/posts/liamking97_ai-start-ups-score-245m-funding-windfall-activity-7101717182698459136-KD0C) at Pre-Seed for a B2B AI-native marketing & legal compliance platform used by enterprises. Built and owned the majority of the frontend for the core product. Scaled through [Seed (Airtree $6M)](https://www.capitalbrief.com/article/haast-raises-6-million-to-transform-compliance-with-ai-automation-24f00fee-be78-4b0b-be61-dc0019789885/) and into [Series A (Peak XV $12M)](https://www.axios.com/pro/enterprise-software-deals/2026/04/09/enterprise-compliance-haast-12-m) during rapid growth (4.5x YoY revenue), now used by **Fortune 500** companies - Built and scaled core product systems (workflows, reviews, asset management, rule pipelines) and document workflows (PDF comparison, annotations, commenting), contributing to **80% reduction** in manual review effort and 2–3x faster time-to-market - Led frontend foundation: migrated and optimized build system from Rollup → Vite, reducing local dev build times from 30s to 500ms (50x faster, instant HMR); upgraded Svelte v3 → v4 (+ contributions toward v5); and introduced Tailwind + DaisyUI - Delivered audit-ready review and collaboration UX (annotations, commenting, workflow states) providing complete audit trails and a single source of truth for regulated enterprise approvals - Stabilized complex state-heavy workflows and resolved production reactivity issues, improving reliability and scalability of critical user flows - Established engineering standards (TypeScript, linting, CI, pre-commit) and contributed to in-house design system and frontend scalability across the product Live: https://www.haast.io/ --- **Realm Labs** (2022 - 2023 · New York, United States - Remote) Joined as an early full-stack engineer and built a 0→1 AI comic creation platform, owning end-to-end development and working closely with the [founder](https://yashash.com/testimonials?highlight=will-yoo) to ship the MVP from concept to production - Developed key features including authentication, a custom drag-and-drop editor, AI scene and character generation, character chat, and creator monetization flows **(payments + payouts via Stripe)** - Integrated LLM and image generation workflows (LangChain, GPT-3.5, fine-tuned Stable Diffusion) to enable AI-driven content creation - Built full-stack architecture using SvelteKit, TypeScript, MongoDB + Prisma, and GCP, evolving backend from Firebase to a more scalable setup --- **Windows 11 Web** (2021 - 2022) Built browser-based Windows 11 replicas [win11-svelte](https://win11.yashash.com/) and [win11-react](https://win11.blueedge.me), reaching **20M+ visits** and earning [11K GitHub stars](https://github.com/yashash-pugalia), sponsored by Vercel - #1 on [Hacker News](https://news.ycombinator.com/item?id=35896505) ([archive](https://web.archive.org/web/20230511060851/https://news.ycombinator.com/)) - [JSNation open-source Awards](https://youtu.be/V3FzeG3OneI), nominated for 'Fun Side Project of the Year' - Endorsed by [Guillermo Rauch](https://x.com/rauchg/status/1656493176088150017) (CEO Vercel), [Eric Simons](https://x.com/EricSimons/status/1656644824190308352) (CEO Bolt.new), [Rich Harris](https://x.com/Rich_Harris/status/1657097805733715987) (Creator Svelte) and [JavaScript Weekly](https://javascriptweekly.com/issues/638#:~:text=Fake-,Windows%2011,-in%20Svelte%20%E2%80%94%20This) Live: https://win11.yashash.com/ GitHub: https://github.com/yashash-pugalia/win11-svelte --- **Prosper Mint** Full-stack SvelteKit MVP for personal finance: connect accounts and surface a clear view of spending, balances, and where your money goes. Live: https://prosper.yashash.com GitHub: https://github.com/yashash-pugalia/prosper-mint --- - [Testimonials](https://yashash.com/testimonials): Full endorsements page - [Julie Zhuo — Co-Founder Sundial | ex-VP Design Facebook](https://www.linkedin.com/in/julie-zhuo/): "Love your work! Especially your dedication to building with craft and creative exploration." - [Guillermo Rauch — CEO Vercel | Creator Next.js](https://x.com/rauchg/status/1656493176088150017): "Well played https://win11-svelte.vercel.app Also: modern web browsers are engineering marvels" - [Eric Simons — CEO Bolt.new](https://x.com/EricSimons/status/1656644824190308352): "Great work on this @yashash_pugalia!, One idea I had - you could even power the file system and standalone terminal app using the http://webcontainers.io api 👀" - [Rich Harris — Creator Svelte](https://x.com/Rich_Harris/status/1657097805733715987): "i love the 'build a pretend OS in svelte' trend — kudos @yashash_pugalia" - [Will Yoo — Co-Founder Unto Labs, Thru](https://www.linkedin.com/in/bywillyoo/): "I want to say you're one of the most talented young engineers I've met, you make some engineers and even founders I've worked with look like amateurs. I highly encourage you to take risks, and do big things with your life. I'm always here to support you. Let's win together." - [Resume (PDF)](https://drive.google.com/file/d/1rEI0fqz-LcTZS0YQD2azX91sZFjTpPKs/view?usp=sharing): Full resume download - [Sitemap](https://yashash.com/sitemap.xml): All indexed pages