five9.com
12 open TypeScript positions
Open Positions
Senior Software Engineer Frontend (digital)
As a Senior Software Engineer on the Digital Team at Five9, you will design, develop, and maintain scalable, high-performance frontend applications and component libraries using React and TypeScript. The role involves collaborating with cross-functional teams to build accessible, WCAG-compliant user interfaces, mentoring engineers, and driving frontend engineering best practices.
Software Engineer II (Frontend-digital) India
As a Senior Software Engineer on the Digital Team at Five9, you will design, develop, and maintain scalable, high-performance frontend applications using React and TypeScript. The role focuses on building reusable components for a design system, collaborating with cross-functional teams, and mentoring engineers while ensuring WCAG accessibility and CI/CD best practices.
Senior Software Engineer
This Senior Software Engineer role on the CRM & SDK team focuses on developing a scalable, highly available global voice platform by integrating the Five9 dialer into various CRM systems. Responsibilities include developing software code using JavaScript, Java, Spring, and related technologies while collaborating closely with cross-functional partners. The role embraces DevOps principles, requiring involvement in designing, developing, and troubleshooting the platform in production, and also requires being On Call.
Software Engineer II Voice
The Global Voice team is seeking an experienced Software Engineer II to build high-performing, scalable, and resilient mission-critical services for the next-generation contact center platform. Key responsibilities include participating in an Agile Scrum team practicing DevOps, writing clean code, and delivering solutions running in the public cloud. The role requires 3+ years of experience developing microservices using Java/Kotlin with Spring Boot and experience with public cloud technologies like AWS or GCP.
Senior Software Engineer
The Senior Software Engineer will be responsible for designing, developing, and maintaining software solutions across the Core Applications suite, covering architecture, development, and testing for both backend and frontend platforms. Key duties involve delivering end-to-end features, ensuring operational responsibility for service performance, and mentoring other developers. The role requires deep technical proficiency and the ability to collaborate with cross-functional teams to implement innovative, high-quality user interfaces and services.
Senior Software Engineer
This role involves developing a scalable, highly available global voice platform as part of an agile team, integrating Five9 dialer into CRM systems using JavaScript, Java, and Spring. Key responsibilities include designing, developing, and troubleshooting software code, writing tests, and supporting the platform in production while adhering to performance and scalability principles.
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Senior Full-Stack Engineer
Five9 is seeking a Senior Full Stack Engineer to design, develop, and enhance mission-critical voice platform services across backend (Java/Spring) and frontend (JavaScript/React) systems. Key responsibilities include developing scalable, highly available components in an agile team and applying performance/scalability principles. The role requires deep expertise in backend Java development and modern frontend frameworks, along with embracing DevOps ownership for troubleshooting and support in production environments.
Senior Software Engineer
This role involves joining an agile team to develop a scalable, highly available global voice platform by integrating Five9 dialer into various CRM systems. The Senior Software Engineer will be responsible for designing, developing, and troubleshooting software using technologies like Java, JavaScript, and Spring, while adhering to performance and scalability principles. Key duties include writing unit/functional tests, supporting the platform in production (DevOps), and collaborating across technical and leadership teams.
Technical Support Specialist - Developer
The Technical Support Specialist is a cross-functional expert responsible for resolving escalated, highly complex technical issues for critical customer accounts. This involves deep technical analysis, advanced troubleshooting across the full stack, and performing code-level analysis using technologies like .NET Core, microservices, and REST APIs. Key responsibilities include diagnosing escalated cases, reproducing complex scenarios, and collaborating closely with Engineering and other internal teams to provide long-term remediation plans.
Sr Software Engineer - Backend Engineer Ind
Five9 is seeking a highly skilled Senior Full-Stack Developer with expertise in .NET Core to join their engineering team in Bangalore. Key responsibilities include designing, developing, and maintaining scalable microservices and APIs using .NET Core and optimizing database queries. The role requires working closely with cross-functional teams in an Agile/Scrum environment to build robust, high-performance cloud-native services.
Software Engineer II - Frontend - Voice
This role involves joining a cross-functional team to own and build the user experience for global voice features using React and TypeScript. Key responsibilities include developing modern, responsive, and accessible UIs, implementing state management patterns, writing thorough tests, and integrating with RESTful APIs. Opportunities exist for full-stack contributions using Spring Boot, although front-end expertise is the primary focus.
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Senior Software Engineer
The Senior Software Engineer will join the Core Applications team to design, develop, and maintain software solutions across essential applications like Agent Desktop Plus and Admin Console. Key responsibilities include owning software architecture, developing both backend and front-end features, ensuring service quality, participating in on-call rotations, and mentoring other developers. This role requires proficiency in modern web and server-side technologies to deliver high-quality user interfaces and features.