AI Full Stack Engineer

We are building AI to simulate the world through merging art and science.
We believe that world models are at the frontier of progress in artificial intelligence. Language models alone won’t solve the world’s hardest problems – robotics, disease, scientific discovery. Real progress requires models that experience the world and learn from their mistakes, the same way that humans do. And this kind of trial and error can be massively accelerated when done in simulation, rather than in the real world.
World models offer the most clear path to general-purpose simulation, changing how stories are told, how scientific progress is made and how the next frontiers of humanity are reached.

Our team consists of creative, open minded, caring and ambitious people who are determined to change the world. We aspire to continuously build impossible things and our ability to do so relies on building an incredible team. If you are driven to do the same, we'd love to hear from you.

We’re looking for an AI Full Stack Engineer to join our team and help us build cutting-edge, AI-powered video creation and collaboration tools. Rather than specialists, we’re seeking curiosity-driven engineers who are thoughtful problem solvers and thrive in fast-paced, high-ownership environments. Our engineering team is highly collaborative and works on a wide variety of exciting challenges, including developing new interfaces for AI content creation, building LLM-powered features and conversational experiences, and deploying cutting-edge computer vision and generative models to production.

The rich UI of our generative AI tools is powered by TypeScript and React with MediaBunny driving in-browser media and React Flow powering our node-based creative workflows. Our API endpoints for user and media management are written in TypeScript and Node.js and deployed as containerized services on AWS ECS Fargate. We leverage AI APIs to power advanced generative capabilities.

• Create rich multimedia interfaces using the cutting edge of the latest AI video generation models Gen-4.5 and Aleph 2.0

• Build end-to-end full-stack AI-powered product features — designing and developing both frontend experiences and backend systems, including authoring server-side processes and APIs that power our generative AI tools

• Design and implement LLM-powered features and conversational interfaces

• Partner with a world-class engineering team pushing the boundaries of creativity and content creation on the browser

• Take on new challenges across the Frontend stack to implement product features for Runway’s machine learning based generative AI tools

• Improve the performance, reliability, and code quality of our codebases

• 3+ years of industry experience in a software engineering role, ideally full-stack focused

• Demonstrated fluency of one or more programming languages, including but not limited to JavaScript/TypeScript

• Experience building with third-party AI APIs (e.g., chatbots, LLM integrations)

• Experience in architecting production-ready systems and familiarity with debugging and profiling tools

• Ability to rapidly prototype solutions and iterate on them with tight product deadlines

• Humility and open mindedness; at Runway we love to learn from one another

Runway strives to recruit and retain exceptional talent from diverse backgrounds while ensuring pay equity for our team. Our salary ranges are based on competitive market rates for our size, stage and industry, and salary is just one part of the overall compensation package we provide.

There are many factors that go into salary determinations, including relevant experience, skill level and qualifications assessed during the interview process, and maintaining internal equity with peers on the team. The range shared below is a general expectation for the function as posted, but we are also open to considering candidates who may be more or less experienced than outlined in the job description. In this case, we will communicate any updates in the expected salary range.

Lastly, the provided range is the expected salary for candidates in the U.S. Outside of those regions, there may be a change in the range, which again, will be communicated to candidates.

Great things come from great teams. We’d love to hear from you.

We’re committed to creating a space where our employees can bring their full selves to work and have equal opportunity to succeed. So regardless of race, gender identity or expression, sexual orientation, religion, origin, ability, age, veteran status, if joining this mission speaks to you, we encourage you to apply.

More about Runway

• Universal World Simulator

• GWM-1

• Gen-4.5

• General World Models

• Robotics SDK

• Conversational Real-time Agents

• Runway Studios

We're excited to be recognized as a best place to work:

Crain's | InHerSight | BuiltIn NYC | INC