Senior Software Engineer - Fullstack at five9

This role is ideal for a seasoned Fullstack Engineer with a strong foundation in Java and extensive experience in the JavaScript ecosystem. You should have a solid grasp of microservices architecture (gRPC/REST) and feel comfortable navigating cloud-native environments like AWS or GCP. Since this position focuses on Salesforce integrations, a background in CRM connectivity or contact center software is a major plus. The position offers a comprehensive benefits package tailored for the Portugal market, including a "10% Flex Benefit," stock shares, a bonus scheme, and an increased annual leave allowance (25 days). Working from the Porto hub, you’ll join a team-first culture that prioritizes modern DevOps practices, utilizing Docker and Kubernetes for high-scale cloud deployments. **You might be a good fit if you...** * Have 5+ years of JavaScript experience and 2+ years of professional Java development. * Are comfortable building scalable backend services using gRPC and RESTful APIs. * Have experience with (or a strong interest in) Salesforce OpenCTI or Service Cloud Voice. * Enjoy working in an Agile environment and mentoring junior developers on code quality and standards.