Jobs at Cardboard, Inc

Own backend systems for video exports, proxies, media preprocessing, analysis, and AI-powered editing. Maintain APIs and state contracts across browsers, workers, storage, and databases. Improve long-running workflows including uploads, processing, progress tracking, recovery, and exports. The role requires production backend ownership, distributed workflow reasoning, media-format knowledge, and flexibility across TypeScript, Go, Rust, or Python. Deep FFmpeg, GStreamer, or codec expertise is a bonus.

Own the quality measurement and improvement of an AI video-editing agent. Build evaluation datasets, offline and online evaluations, automated checks, human reviews, regression gates, and release criteria. Analyze agent failures and improve results through better data, evaluation methods, model selection, and fine-tuning. Partner with product and engineering to ship reliable improvements while tracking quality, latency, and cost.

Own product design end to end, including user flows, UI, prototypes, micro-interactions, and design systems. Partner closely with founders, engineering, and growth to create a cohesive video storytelling and editing product. Advocate for users, shape product direction, maintain high visual and interaction quality, and coordinate external creative contributors when needed.

Build the interaction layer and visual quality of a video storytelling and editing product. Responsibilities include creating animations, micro-interactions, rendering features, editor timelines, microsites, and reusable components; optimizing browser memory and performance for large media projects; experimenting with shaders and creative techniques; improving accessibility and interface guidelines; and connecting API endpoints when needed.

Build and ship full-stack features for a browser-based video editor, spanning frontend interactions, backend services, cloud media rendering, and infrastructure. Solve challenging browser problems involving real-time editing, smooth playback, large media, performance, and reliability. Help develop AI-powered editing experiences and own features end to end in a fast-moving startup environment.