Backend Engineer

Krea AI Krea AI · Multimodal · San Francisco, CA · Engineering

Backend Engineer at Krea AI, a company building AI creative tools. The role focuses on designing, implementing, and maintaining private APIs, database models, and improving system performance, observability, and scalability for real-time image and video generation. Responsibilities include infrastructure improvements, open-sourcing innovations, and adding enterprise-grade features.

What you'd actually do

  1. Design, implement, deploy, and maintain private APIs for our main web and mobile applications.
  2. Design database models.
  3. Fix issues with our system that, among other things, may be related to how HTTP/3 handles client-side connections to our processes.
  4. Improve database and infrastructure performance by implementing caching solutions or better connection pooling.
  5. Profile and find bottlenecks for many types of HTTP/WebSockets requests to enable real-time image generation—and even video!

Skills

Required

  • Javascript/TypeScript
  • Svelte & SvelteKit
  • Node
  • Postgres
  • Redis
  • WebSockets
  • AWS
  • Kubernetes
  • HTTP/3
  • Observability
  • Monitoring
  • Alerting
  • Scalability
  • Performance optimization
  • API design
  • Database design

Nice to have

  • Open-source contributions
  • Enterprise-grade features (Audit Logs, SAML/SSO, SCIM)

What the JD emphasized

  • real-time image generation
  • video generation