HighLevel is a leading SaaS platform processing over 15 billion API hits and handling more than 2.5 billion message events daily. The platform manages 470 terabytes of data across five databases, operates with 250+ microservices, and supports over 1 million domain names. As a Software Development Engineer III on the Phone System team, you'll be instrumental in developing scalable backend services and managing infrastructure. The role combines technical expertise with leadership opportunities, working with a diverse team of 1,500+ members across 15+ countries in a remote-first environment. You'll be part of a platform that powers 1.5 billion messages monthly and helps generate over 200 million leads for 2 million+ businesses. The position requires strong full-stack development skills, particularly in Node.js and modern JavaScript frameworks, with experience in both SQL and NoSQL databases. This is an opportunity to make a significant impact on a rapidly growing platform while working with cutting-edge technologies in a globally distributed team.