Prathmesh Vhatkar

Sole Full Stack Engineer on a production AI content-generation SaaS platform built with TypeScript, React, Next.js, tRPC, Drizzle ORM, and PostgreSQL, serving 10,000+ users and 2,000+ subscribers.

• Reduced active CPU time by 95% by replacing polling with signed Replicate and RunPod webhooks, using TanStack Query for asynchronous generation-job tracking.
• Built serverless video infrastructure with AWS Lambda, Remotion, Amazon S3, and CloudFront, powering 18,000+ AI video renders with private assets and signed CDN delivery.
• Evaluated and integrated multimodal AI models, balancing output quality, inference cost, and performance as product requirements evolved.
• Integrated a Stripe-based merchant-of-record platform for subscription management, connecting billing and payment workflows with the subscription lifecycle.
• Instrumented product workflows with PostHog to track user behavior and feature usage and inform product improvements.
• Automated Resend email workflows for payment confirmations, failed transactions, and product updates.

Built candidate recording and recruiter screening workflows at Proof of Skill.

• Migrated candidate screen and camera recording from direct S3 uploads to Amazon IVS using TypeScript and the IVS Web Broadcast SDK, with per-assignment channels and upload retries.
• Built a responsive, swipe-based recruiter app with Next.js, React, Framer Motion, and TanStack Query for candidate screening, comparison, and contact workflows.
• Worked with the design team to translate Figma specifications into responsive interfaces, maintaining consistency across layouts, components, and interaction states through rapid release cycles.

Delivered an AI email and calendar client and a role-based event accreditation platform for Government of Meghalaya operations.

• Built an AI-first email and calendar client with Next.js, TypeScript, Gmail API, Google Calendar and Meet APIs, Gemini, PostgreSQL, Drizzle ORM, and pgvector, enabling inbox RAG, AI replies, and integrated scheduling.
• Delivered a role-based FIFA accreditation platform for Government of Meghalaya event operations using React, Drizzle ORM, Better Auth, and Sharp, generating 1,500+ IDs.