Yash Gourav Kar

Software engineer

building beautiful end-to-end applications using TypeScript and AI.

I'm currently building AI applications with the AI SDK and orchestrating agents to elevate product experiences.

Having worked professionally since 2023 in a number of US startups (all in their 0–1 phase) made me take Founding Engineer responsibilities 6 months into my career.

Professional Work


ShapeshifterAlphaSept 2024 — Present
Founding EngineerFull-time
  • Refactored to a TurboRepo multi-package workspace from a foundational Next.js app on my own.
  • Rewrote ~50 LLM workflows with strict type-safety & error handling using Vercel AI SDK.
  • Decoupled a tRPC API into its own service to share with a Chrome extension for end-to-end type-safety.
  • RAG and vector embeddings for custom LLM training on user resources.
  • Referrals to bypass private access while the application is not GA.
  • Optimize the user`s resume using LLMs for any job description.
  • Built comprehensive product analytics visuals for admins as well as our users.
  • Integrated our own Slack bot for periodic and event based notifications.

Next.jsTurboRepoZustandVercel AI SDKtRPCMongoDBPrismaPineconeSlack API
LabquoteGAMay 2024 — Sept 2024
Founding EngineerFull-time
  • Wrote the entire application from scratch (no designs) + ensured responsive images for all screen sizes.
  • Support 10 types of listings with Postgres JSONB with full type safe checks
  • Notifications against selling of specific instruments for specific listings and user to edit preferences.
  • Wrote Cron jobs to expire listings and invalidate bids upon disapproval
  • Wrote entire database schemas with appropriate indexes, authentication, ui elements and custom form validation from scratch.
  • Integrated the new Google Places API (v2) to autocomplete user's address based on input.
  • Implemented a robust phone number input component that verifies whether a given number is valid for the country it's from.

Next.jstRPCPostgreSQLPrismaStripeNode.js
OrteloDefunctDec 2023 — Apr 2024
Fullstack EngineerContract
  • Added real-time notifications with MagicBell.io
  • Built payments for subscriptions and top-ups in 3 days (Stripe + webhooks) in my second week on the job.
  • Implemented DND scheduling, OTP verification, and rich filtering.
  • Shipped a test-call modal with custom prompts via OpenAI API in under 3 hours.

Next.jsNode.jsStripeOpenAI

Highlights


Personal Work


  • AI powered platform for creating compelling captions and posts for blogs and articles.

  • A fully-responsive Instagram clone with the T3 stack. Posts, animations, comments, messaging, and reactions. tRPC, Postgres, and websockets.

  • My best UI work. Generates a beautiful portfolio instantly with analytics and dynamic OG images. Next.js, Server Components, Server Actions, Next-Auth, Prisma, shadcn/ui.

Connect


Reach out to me onorview my resume