Early Product Engineer

Join Hire Hangar and work with fast-growing global companies while building a long-term, remote career. Job Title: Early Product Engineer Location | On-Site — San Francisco, CA Time Zone | PST Role Overview: We are seeking an Early Product Engineer to help build the core experience at a fast-moving AI video infrastructure startup. The company's first product turns prompts and documents into whiteboard-style explainer videos in seconds, with a bigger goal of making video generation as fast, cheap, and programmable as text generation is today. As one of the first engineering hires, you will own significant parts of the product — from how users interact with it to the systems running behind the scenes. This role suits someone who prefers building real things over managing narrow tickets, and who is energized by figuring out what to build, not just how. You will work side-by-side with the founder, shaping both the product and how the engineering team operates. Key Responsibilities: - Take product ideas from concept to shipped, working software - Build and maintain APIs supporting core workflows like accounts, jobs, and billing - Develop frontend interfaces that feel polished and dependable - Improve day-to-day product experience: onboarding, usage clarity, account tools - Partner with product, design, and customers to shape what gets built next - Maintain code quality and document...