Founding Full-Stack Engineer

Department: Engineering

Location: San Francisco

Employment Type: FullTime

About the Role

Join a pre-seed Applied AI startup in San Francisco as a Founding Full-Stack Engineer, working directly alongside the founders to ship across the entire product. This is a high-ownership, high-impact role at a small team building at the intersection of generative AI, creative intelligence, and social media — with ambitions to reach hundreds of millions of users.

You'll touch everything: web, mobile, backend, infrastructure, AI integrations, and video processing pipelines. If you thrive in fast-moving, founder-led environments and want your work to matter from day one, this role is for you.

What You'll Do

• Build across the full product surface: web app (Next.js), mobile app (React Native), admin tools, pricing flows, and dashboards.

• Ship real features fast — multi-agent orchestration, FFmpeg video stitching, Remotion pipelines, and LLM/VLM integrations.

• Architect systems designed to scale to one million users per day.

• Collaborate directly with founders on product decisions, UX flows, and technical direction.

• Dive into whatever moves the product forward — UI, backend, infra, orchestration, computer vision, ML, or DevOps.

• Own problems end-to-end without waiting for permission or detailed instructions.

What We're Looking For

Required (dealbreakers):

• Strong proficiency with Next.js and React Native for building web and mobile interfaces.

• Hands-on, end-to-end full-stack experience across UI, backend, and infrastructure.

Strongly preferred:

• Experience integrating and deploying AI systems, including large language models (LLMs) and vision language models (VLMs).

• Practical experience with video processing and media pipelines using FFmpeg and Remotion.

• 1–3 years of relevant experience in a fast-paced, multi-disciplinary environment.

• Ownership mindset — you ship fast, communicate clearly, and flag issues early rather than going quiet.

• Experience building consumer-facing applications at high user volumes.

Compensation & Benefits

• Salary: Up to $300,000 USD annually (commensurate with experience).

• Early-stage equity in a pre-seed company with strong investor backing.

• Visa sponsorship: Not available.

Location

• On-site in San Francisco, CA, United States.

• This is an in-person role; remote work is not available.