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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 setting, empowering our employees to be
their authentic selves.

As a Senior Software Engineer on the Cortex Management Team, you will design,
develop, and maintain backend software solutions supporting Five9’s AI
initiatives. This role focuses on building scalable, reliable, and high
performance backend systems that power end to end platform capabilities.

You will be responsible for backend architecture, service design,
implementation, testing, and documentation. Working closely with product owners
and key stakeholders, you will translate requirements into robust backend
services and APIs. The role also involves deep technical exploration of emerging




technologies and partnering with product teams to bring innovative ideas into
production.

In addition, this position plays a key role in mentoring other engineers and
driving backend engineering best practices across Five9.

How You Contribute
• Leverage strong expertise in programming languages, frameworks, and
development methodologies to solve complex backend and distributed systems
challenges.
• Write high quality, efficient, and maintainable backend code by following best
practices and contributing to core services, APIs, and platform capabilities.
• Troubleshoot and resolve complex production and architectural issues by
identifying root causes and implementing scalable solutions.
• Ensure development stays on track, deliverables meet milestones, and solutions
align with business and platform objectives.
• Collaborate closely with cross functional teams including product managers,
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📌 Senior Backend Engineer (Bengaluru)
🏢 Five9
📍 Bengaluru