# Backend Engineer

**Company:** [Krea](https://hotfix.jobs/companies/krea)
**Location:** San Francisco, CA
**Role:** Backend Engineering
**Skills:** TypeScript, Node.js, Postgres, Redis, Kubernetes, AWS, Sveltekit, WebSockets, Prometheus, OpenTelemetry
**Posted:** 2025-07-31

> Builds and scales private APIs, database models, and infrastructure for AI creative tools supporting web/mobile apps with real-time image/video generation. Optimizes performance, observability, and adds enterprise features using Node.js, TypeScript, Postgres, and Kubernetes.

## Job Description

## Responsibilities
- Design, implement, deploy, and maintain private APIs for main web and mobile applications.
- Design database models.
- Fix issues with system, including HTTP/3 client-side connections.
- Improve database and infrastructure performance with caching or better connection pooling.
- Profile and find bottlenecks for HTTP/WebSockets requests to enable real-time image generation and video.
- Improve observability, monitoring, and alerting for services.
- Scale services via architectural and infrastructure improvements.
- Open-source non-trivial innovations.
- Design and iterate on software development processes for web-native and AI-native creative tools.
- Professionalize product with enterprise-grade features like Audit Logs, SAML/SSO, SCIM.

## Tech Stack
- JavaScript/TypeScript
- Svelte & SvelteKit
- Node, Postgres, Redis
- WebSockets
- Managed Kubernetes on AWS
- Monitoring: Axiom/HyperDX/Prometheus/OpenTelemetry
- GitHub, Slack, Notion

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**Apply:** https://hotfix.jobs/jobs/94320e53-0937-42ef-a030-d38b1dd5c40d
**Canonical:** https://hotfix.jobs/jobs/94320e53-0937-42ef-a030-d38b1dd5c40d