krea.ai · 1 month ago
Fullstack Engineer
San Francisco, CA
Full-time
Onsite
Mid LevelKrea.ai is focused on developing next-generation AI creative tools that empower human creativity. The Fullstack Engineer will be responsible for building and maintaining APIs and UI flows for both web and mobile applications, optimizing frontend performance, and designing backend services.
ArtArtificial Intelligence (AI)Photo EditingVideo Editing
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
Qualification
Required
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
Preferred
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
Company
krea.ai
Founded in 2022
2-10 employees
H1B Sponsorship
krea.ai has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
2021 (1)
Funding
Current Stage
Growth StageTotal Funding
$83MKey Investors
Bain Capital VenturesAndreessen HorowitzAbstract
2025-04-07Series B· $47M
2024-01-01Series A· $33M
2023-04-01Seed· $3M
Leadership Team
Víctor Perez
Co-founder & CEO
Diego Rodriguez
Co-founder & CTO
Recent News
2025-12-26
2025-04-08
Company data provided by crunchbase