Fullstack Engineer

Responsibilities

• Build and maintain web and mobile APIs and UI flows using Svelte/SvelteKit and TypeScript.
• Design interactive, responsive frontend experiences with drag-and-drop, real-time canvas interactions, and smooth UI animations.
• Optimize frontend performance, reduce render latency, profile virtual DOM behavior, and deliver responsive WebSocket image streams.
• Design and maintain Node backend services, Postgres database models, and Redis caching and pooling.
• Kickstart a public API project serving Krea AI models to developers.
• Diagnose and WebSocket issues on both client and server sides.
• Drive real-time image and video generation pipelines through low-latency APIs.
• Improve observability and alerting using OpenTelemetry tools.
• Implement enterprise features including audit logs, SAML/SSO, and SCIM provisioning.
• Potentially scale infrastructure involving AWS EKS GPU clusters and Kubernetes operators.

Requirements

• Solid full-stack JavaScript/TypeScript engineering experience with a frontend focus, including component design, UI state, animations, and client performance.
• Experience with SvelteKit or similar frameworks and real-time UI using WebSockets.
• Ability to design APIs, database schemas, and caching strategies.
• Familiarity with Kubernetes, Postgres, Redis, and observability stacks.
• Side projects or open-source contributions in UI or infrastructure are a plus.
• Prior work with enterprise authentication features, GPU workloads, or ML and image/video pipelines is a bonus.

Benefits

• Full-time, in-person work at Krea's waterfront office in San Francisco.
• Competitive compensation with salary and equity packages.
• Krea covers 100% of employee health and 99% of dental and vision insurance premiums, plus health FSA accounts and long-term disability coverage.
• Flexible PTO policy.
• 401(k) with a 4% company-sponsored match.
• Breakfast, lunch, and dinner provided in the office.
• Ubers covered to and from the office.
• International visa sponsorship may be available, including STEM OPT, OPT, H-1B, O-1, and E-3 sponsorship.
• Benefits and perks listed apply to full-time employees.