Senior Software Engineer

Confirmed live in the last 24 hours

Five9

Australia (Remote)

Hybrid

Posted March 30, 2026

Job Description

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.

The team

The Product Engineering team drives the realization of practical AI solutions for the contact center environment. Our existing Studio product stack is built on PHP/Laravel, Python, and Vue.js, and is deployed across both private and public clouds. We leverage leading cloud AI services including Azure OpenAI, Google AI APIs, IBM Watson, and Amazon Lex.

Our vision for practical AI is to equip contact center agents, supervisors, and managers with intuitive user interfaces that guide and summarize their work, identify coaching and support opportunities, automate routine interactions, and enable the creation, deployment, and ongoing management of AI agents. At the same time, Studio is being fully integrated into the robust Five9 microservices platform.

Role purpose

The Senior Software Engineer role within the R&D AI Automation Team is responsible for designing, developing, and maintaining the Studio software solution—a drag-and-drop flow builder and execution engine that integrates multiple channels such as voice, SMS, and chatbots with the Five9 contact center voice solution.

This role includes software design and development, testing, and documentation across backend, frontend, and interaction management platforms to deliver end-to-end features. You will collaborate closely with product owners and designers to expand functionality and create high-quality user interfaces, take operational ownership for service performance and quality (including participating in on-call rotations), explore cutting-edge technologies, and work with product teams to bring innovative ideas to market. This role contributes directly to the design process for new products and solutions.

How you contribute

Demonstrate comprehensive knowledge of programming languages, frameworks, and development methodologies to resolve complex technical challenges.
Produce high-quality, efficient, and maintainable code that supports scalability and tenancy management, following established best practices.
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