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. 

Five9 has led the cloud revolution in contact centers, helping organisations transition from legacy premise-based solutions to the cloud. The cloud contact center market has become the hot space for innovation in real-time communications, and is the tip of the spear for the application of Artificial Intelligence, especially Generative AI and Large Language Models (LLM). Our innovative AI team is responsible for developing a suite of leading edge AI products built upon industry-leading AI tech from vendors like OpenAI, Google, and Amazon. These products include enterprise voice and chatbots (think: ChatGPT for businesses), agent assistance, and conversation analytics. This team – the fastest growing at Five9 - is seeking a talented and experienced Staff Full Stack Software Engineer. In this role, you will be part of the team that builds software that brings AI technologies to users. Prior AI experience is not required - you will receive on-the-job experience for some of the hottest skills on the market. An ideal candidate for us is an experienced engineer who is passionate about building high performance web platforms and applications, a brilliant problem solver and a creative self-starter.

Key Responsibilities:

• Software design and development, testing and documentation across our backend, front-end and interaction management platforms to deliver end-to-end features.
• Work with product owners and designers to expand the feature set and create high-quality user interfaces.
• Design and perform architectural reviews of the end-to-end solutions.
• Mentor the team members in the art of software engineering, and take responsibility for high quality software delivery.
• Take operational responsibility for the performance and quality of services owned by your team, potentially including taking part in an on-call rotation.
• Deep dive into recent technologies and work with the products team to transfer ideas into products.
• Contribute to the architectural design process for new products and solutions. 
• Develop high quality software by using various automated testing strategies like, unit tests, functional tests and integration tests with good code coverage.
• This position requires the ability to be part of on-call rotation, troubleshooting customer issues and work with Incident command to drive issues to resolution.

Requirements:

• 10+ years of experience and have a solid understanding of backend using Java and Spring framework. Strong eye for REST standards and API development experience is a must.
• Google Cloud or similar cloud engineering experience is needed.
• Care and know about software engineering practices like continuous delivery, defensive programming and automated testing.
• Solid experience of working in an agile development environment and collaborating with a team.
• Experienced in working with distributed systems comprised of multiple services.
• AI skills in speech recognition and natural language processing are a plus but not required.
• Bachelors or Master's degree in Computer Science or equivalent work experience.

Benefits:

• Five9 Shares
• Bonus Scheme
• 10% Flexi Benefit
• Meal Allowance
• Medical Insurance
• Life Insurance 
• 25 day Annual Leave + Public Holidays

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Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills.  The more inclusive we are, the better we are.  Five9 is an equal opportunity employer. 

View our privacy policy, including our privacy notice to California residents here: https://www.five9.com/pt-pt/legal.  

Note: Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.