Sr Software Engineer - Fullstack at five9

This role is designed for a seasoned Fullstack Engineer with a strong background in PHP/Laravel and modern JavaScript frameworks (Vue.js or React). You will join the AI Automation team to build "Studio," a low-code drag-and-drop flow builder that powers AI agents and multi-channel interactions (voice, SMS, chatbot). Ideal candidates have experience with multi-tenant systems and a desire to integrate cutting-edge AI services like OpenAI and Google AI. As part of a remote-first R&D team in India, you will have significant ownership over the end-to-end development life cycle, from architectural design to operational performance. The position offers unique exposure to the intersection of cloud communications and Practical AI, moving beyond "hype" to deliver functional automation for global contact centers. **You might be a good fit if you...** * Are highly proficient in **Laravel** and **Vue.js** (or React) and can deliver high-quality, maintainable code. * Have experience with database sharding (MySQL, Redis, MongoDB) and cloud-native deployments (GCP, Kubernetes). * Are comfortable with an **on-call rotation** to ensure the reliability of the services your team owns. * Enjoy mentoring junior developers through code reviews and establishing engineering best practices.