Backend Engineer • Senior

Who you are

You have 5+ years of backend engineering experience building production systems at scale — you've taken ownership of services from design through deployment and have navigated the complexities of debugging distributed systems. Your expertise in building APIs is well-established, and you understand the importance of consistency and efficiency in core services. You thrive in an agile environment, collaborating with product managers, architects, and engineering leaders to deliver high-quality solutions. Your knowledge of performance and scalability principles informs your development practices, ensuring that the services you create are robust and reliable. You are committed to clear documentation and communication, sharing architecture and implementation solutions with your team. You value diversity and inclusivity in the workplace, believing that a variety of perspectives leads to better outcomes.

Desirable

Experience with cloud technologies and contact center solutions would be a plus, as would familiarity with agile methodologies and best practices in software development. A background in working with cross-functional teams to deliver impactful solutions is also desirable.

What you'll do

As a Senior Backend Engineer at Five9, you will be responsible for developing scalable and highly available core platform services that are critical to our contact center solutions. You will participate in requirements analysis and contribute to architectural decisions, ensuring that the services you build meet the needs of multiple teams. Your role will involve collaborating closely with product managers and engineering leaders to align on project goals and deliverables. You will apply your understanding of performance and scalability principles to enhance the efficiency of our services. Additionally, you will document and communicate your architectural and implementation solutions clearly, fostering a culture of knowledge sharing within the team. You will also troubleshoot and support the current platform, ensuring that it operates smoothly and efficiently.

What we offer

At Five9, we offer a team-first culture that celebrates diversity and fosters an inclusive environment. You will have the opportunity to work with cutting-edge cloud technologies and contribute to a product that enhances customer experiences worldwide. We encourage you to apply even if your experience doesn't match every requirement, as we value curiosity and a growth mindset. Our hybrid work model allows for flexibility, and we are committed to supporting your professional development as you grow with us.