HeyGen, a leader in the AI video space with over 85,000 customers, is leveraging AI to revolutionize its development processes, as explained by Head of Product Engineering Nikunj Yadav. AI has blurred the lines between backend and frontend roles, enabling engineers to write frontend code and reduce handoffs, thus speeding up the development cycle. The most significant AI benefits are in code generation and testing, with AI facilitating the creation of unit tests and improving code coverage. Despite its current limitations, AI-assisted tools like Graphite show promise in refining code quality by catching bugs and offering basic feedback. The hiring process at HeyGen now emphasizes AI fluency, assessing candidates' problem-solving skills and their ability to work with AI-generated code. AI also enhances productivity by allowing non-engineering teams to self-serve customer inquiries, minimizing interruptions for engineers. Overall, AI has expanded the capabilities of HeyGen's engineering team, fostering a culture of experimentation and innovation.