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Staff Software Engineer - Core Backend | India

Five9 Inc - India, Bengaluru

Posted May 5, 2026

Benefits

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About this role

Staff Software Engineer - Core Backend | India India, Bengaluru Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide. Living our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves. Overview As a Staff Engineer at Five9 , you will work on core backend services that power our global cloud contact center platform. You will tackle complex engineering challenges at scale, remain deeply involved in coding, and contribute to a culture that values craftsmanship, innovation, and technical excellence-while mentoring others and shaping best practices. What You'll Do - Design, develop, and optimize high-performance microservices using Java and Spring Boot - Write clean, maintainable, and testable code with a strong focus on scalability, reliability, and performance - Take ownership of services end-to-end - from design and implementation to deployment, monitoring, and ongoing operations - Collaborate with architects and senior engineers on system design, technical reviews, and problem-solving - Ensure services meet SLAs, performance metrics, and security standards - Contribute to improving CI/CD pipelines, automation, and observability to reduce manual effort and improve service reliability - Provide technical guidance and mentorship to mid-level and junior engineers through code reviews, pairing, and knowledge sharing - Stay current with evolving technologies and help evaluate and adopt tools that strengthen

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