Senior Full-Stack Engineer (AI Media Platform)

Core Requirements

• Senior Full-Stack Web Development — TypeScript, Node.js, React, Vite, Express, Drizzle, SQLite/Postgres
• Multi-tenant SaaS Architecture — Authentication (OAuth/JWT), user/workspace namespacing, row-level security, database migrations (SQLite → Postgres)
• Payments & Billing — Stripe integration, subscription management, webhooks, credit systems, and usage-based metering
• GPU Infrastructure & ML Ops — Experience with RunPod, Modal, Replicate, or Kubernetes + bare-metal GPU setups; job queuing, autoscaling, cold-start optimization, retry logic
• ComfyUI Expertise — Workflow JSON manipulation (node-level editing), custom node management, model handling, and advanced pipeline configuration
• Media Storage & Delivery — S3/R2-compatible storage, CDN (CloudFront, Bunny.net, etc.), signed URLs, and retention policies
• Video Processing Pipeline — FFmpeg for trimming, transcoding, HLS/DASH streaming, thumbnail generation, and watermarking
• Frontend Product Development — shadcn/ui, Tailwind CSS, iframe/micro-frontend/embedded widget patterns
• Content Safety & Moderation — Age verification, content classification, harmful content detection, and takedown workflows
• DevOps — Docker, GitHub Actions, monitoring (Sentry/Datadog), secrets management, and backup strategies

Nice-to-Have

• Python experience (ComfyUI custom nodes, FastAPI services)
• Deep knowledge of VAE / U-Net architectures and custom diffusion pipelines
• React Native for mobile apps
• Ad-tech or ad-server integration experience
• Background with high-scale media generation platforms