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Krea

Fullstack Engineer

San Francisco
Level
Mid
Work type
On-site · San Francisco

Not stated in the posting: salary, visa.

Open. First seen 2 October 2026.

Apply on the company's site →

About the role

About Krea

Krea's standard text

At Krea, we are building next-generation AI creative tools.

We're dedicated to making AI intuitive and controllable for creatives - our mission is to build tools that empower human creativity, not replace it. We believe AI is a new medium that allows us to express ourselves through various formats - text, images, video, sound, and even 3D. We're building better, smarter, and more controllable tools to harness this medium. We recently took this a step forward with the launch of Krea 2, our first foundation model, built completely from scratch for aesthetic diversity and stylistic control, and with Krea 3 - our new image editing model.

We've raised over $83M and are backed by world-class investors such as a16z, Bain Capital, and Abstract. We work full-time and in-person at our waterfront office in San Francisco. We care about creativity: our team includes musicians, designers, visual artists, and engineers.

Some examples of things you will do:

  • 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

Stack:

  • Frontend: Svelte/SvelteKit
  • Backend: Node + TypeScript, Postgres, Redis
  • Realtime: WebSockets, HTTP/3
  • Infra: AWS EKS GPU clusters, Kubernetes
  • Observability: Prometheus, OpenTelemetry, Axiom/HyperDX
  • Tools: GitHub, Slack, Notion

What we offer

  • Team: Work alongside a world-class team building the future of AI creative tooling
  • Impact: Significant scope and company-wide impact
  • 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!

Please note the above benefits & perks are for full-time employees

What this role asks for

Particular to this role

GitHub · OpenTelemetry · Prometheus · Svelte · WebSockets

Rare in Krea's other 8 open postings.

Standard for full stack roles

AWS · JavaScript · Node.js · PostgreSQL · TypeScript

Common in full stack postings at any company.

In most of Krea's ads

Machine Learning

Named in most of its open postings, whatever the role.

79% of this description is written for the role. The rest is Krea's standard text, folded away below.

Read against Krea's other open postings on this site.

The team: Engineering

This role is one of 4 open in Engineering.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

Kubernetes (4 of 4), Machine Learning (4 of 4), AWS (3 of 4), PostgreSQL (3 of 4), Python (3 of 4), Redis (3 of 4), TypeScript (3 of 4)

OTHER ROLES ON THIS TEAM

From the team and dates on Krea's own job board.

Salary context

7 other open postings titled Fullstack Engineer state a salary: median USD 140,000 to USD 210,000 a year.

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