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Fullstack Engineer

Krea· 01. Engineering
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San FranciscoFull-timePosted 2mo ago

About the role

Fullstack Engineer responsible for building and maintaining APIs and UI flows for web and mobile, with a focus on frontend in Svelte/SvelteKit, real-time experiences, performance optimization, and backend services.

Responsibilities

  • Build and maintain APIs and UI flows for web + mobile in Svelte/SvelteKit, TypeScript
  • Design interactive, responsive front-end experiences—drag-and-drop, real-time canvas polish, smooth and responsive UI animations
  • Optimize frontend performance: minimize render latency, profile UI with virtual DOM techniques, deliver seamless WebSocket image streams
  • Design and maintain backend services (Node), DB models (Postgres + Redis caching/pooling)
  • Kickstart a Public API project to serve Krea AI models to millions of developers
  • Diagnose HTTP/3 and WebSocket related issues both on the client side and the server side
  • Drive real-time image & video generation pipelines via low-latency APIs
  • Improve observability and alerting using OpenTelemetry tools
  • Implement enterprise features: Audit Logs, SAML/SSO, SCIM provisioning
  • Bonus: Scale our infra architecture through deep understanding of our AWS EKS GPU clusters or Kubernetes operators
  • Strong candidates may have experience with the following: Solid full-stack JS/TS engineer with frontend focus—component design, UI state, animations, client performance
  • Experience with SvelteKit or similar frameworks, real-time UI via WebSockets
  • Comfortable designing APIs, database schemas, caching strategies
  • Familiar with infra and scale: Kubernetes, Postgres, Redis, observability stacks
  • Side projects or open-source contributions in UI/infra are plus
  • Bonus: prior work on enterprise auth features, GPU workloads, ML or image/video pipelines

Qualifications

  • Solid full-stack JS/TS engineer with frontend focus—component design, UI state, animations, client performance
  • Experience with SvelteKit or similar frameworks, real-time UI via WebSockets
  • Comfortable designing APIs, database schemas, caching strategies
  • Familiar with infra and scale: Kubernetes, Postgres, Redis, observability stacks
  • Side projects or open‑source contributions in UI/infra are plus
  • Bonus: prior work on enterprise auth features, GPU workloads, ML or image/video pipelines

Skills

Required:Frontend development (Svelte/SvelteKit)Node.jsPostgreSQLRedisWebSocket
Nice to have:HTTP/3AWS EKS / KubernetesOpenTelemetryEnterprise auth features (SAML/SSO, SCIM)

Benefits

  • Competitive compensation: generous salary & equity packages
  • Health & wellness: 100% health & 99% dental/vision insurance premiums covered for employees, health FSA accounts, & long-term disability coverage
  • Time off: Flexible PTO policy
  • Financial planning: 401k with a 4% company-sponsored match
  • Meals in the office: breakfast, lunch, dinner - you name it, we'll cover it
  • Transit: Ubers covered to & from the office
  • Sponsorship: We're open to sponsoring international visas where we can (e.g., STEM OPT, OPT, H-1B, O-1, E-3)
  • And more!
Last updated Aug 27, 2026. Interested? Apply on the company site.

About Krea

The most powerful AI suite for Creatives.

Generate, edit, and enhance images, videos, and 3D assets with Krea's creative AI suite. Start for free with real-time tools, powerful models, and collaborative workflows.

AI Image GenerationAI Video GenerationAI 3D GenerationImage EnhancementsVideo EnhancementsFinetuningAsset Management
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