Staff Software Engineer | R&D AI Automation at five9

This role is ideal for a seasoned Full-Stack Engineer with over 8 years of experience who thrives at the intersection of legacy modernization and R&D. You should have a deep background in building high-traffic, multi-tenant SaaS applications and a desire to lead the transition of existing systems into cloud-native Java microservices. A standout aspect of this position is the opportunity to work directly with cutting-edge AI automation. Based in Bengaluru under a hybrid model, you will be a key architect in migrating a PHP/Laravel and Python stack over to Java on GCP. While the role is highly technical, it also carries a leadership mandate, requiring you to mentor peers and take operational ownership of production systems. **You might be a good fit if you...** * Have mastery over **Java/Spring Boot** but are also comfortable navigating **PHP** and **Python** codebases. * Have extensive experience with **Kubernetes**, CI/CD, and observability tools like New Relic or Grafana. * Are excited about building AI agents that integrate voice, SMS, and chat for global contact centers. * Enjoy "pioneer" work—turning R&D concepts into stable, production-ready microservices.