Senior Software Development Engineer - Professional Services at five9

This role is ideal for a seasoned developer with a deep background in **Computer-Telephony Integration (CTI)** and cloud communications. You’ll need 5+ years of experience bridging the gap between contact center systems (like Genesys or Cisco) and modern web technologies. Since this is a Professional Services role, you should enjoy client-facing work, rapid-fire project cycles (days to weeks), and writing Statements of Work. The compensation range is exceptionally wide, reaching up to **$274k**, and includes a 100% employer-paid health insurance option for employees. The position offers high flexibility with a remote-first model (unless you live near San Ramon) and allows you to touch a diverse tech stack including Node.js, HTML5, and various CRM integrations like Salesforce and Zendesk. **You might be a good fit if you:** * Have hands-on experience building integrations for enterprise contact centers. * Are comfortable moving quickly between different coding environments and third-party APIs. * Can translate complex technical feasibility studies into clear business requirements for customers. * Are open to "consultant-style" engineering, which includes up to 15% travel and high-level project management.