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.
Role Overview
We're looking for a talented Frontend Engineer who leads with UI but isn't afraid to go deep. You thrive in a fast moving environment, ship polished interfaces with TypeScript and React and embrace AI-assisted development as a core part of your workflow. This role is front-end-first, but the expectation is that you'll grow into full stack ownership over time.
How You Contribute
- Design and build responsive, performant UIs using React, TanStack, Zustand, TypeScript and/or JavaScript
- Collaborate on feature development end-to-end, gradually taking on backend work as you grow
- Use GitLab for version control, CI/CD pipelines, merge request workflows, and issue tracking
- Deploy and manage workloads on Google Cloud Platform CDN, working alongside with services like GKE, and Cloud Storage
- Leverage AI-assisted (vibe coding) tools to accelerate development — you're comfortable using Copilot, Cursor, Claude, or similar tools as a force multiplier
- Write clean, maintainable code with strong typing and component reuse in mind
- Partner closely with designers and product to translate specs into real, shippable experiences
- Participate in code reviews, retrospectives, and architectural discussions
Required Skills and Qualifications
- 5+ years of + post-internship experience with React and TypeScript.
- Solid JavaScript/ TypeScript, HTML, CSS
- Knowledge of UI Component Libraries, Web Accessibility, Internationalization
- Ability to work with test libraries (Jest, Playwright)
- Proficient in React, TanStack, Zustand
- Engineering focus
- Overall system knowledge
- Working knowledge of Jira, GitLab, Visual Studio, CI/CD
- Proficient in Google Cloud Platform, Kubernetes, BigQuery, Cloud SQL, CDN
- Ability to use Claude Code
Desirable Qualifications
- AI Tools
- Micro Front End Architecture
- Java/ Springboot
- Database SQL/ NoSQL
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.
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.
Skills Required
- 4+ years post-internship experience with React and TypeScript
- Solid JavaScript, TypeScript, HTML, CSS
- Knowledge of UI component libraries, web accessibility, internationalization
- Experience with test libraries (Jest, Playwright)
- Proficient in React, TanStack, Zustand
- Working knowledge of GitLab for version control and CI/CD
- Working knowledge of Jira and Visual Studio
- Proficient in Google Cloud Platform, Kubernetes, BigQuery, Cloud SQL, CDN, GKE, Cloud Storage
- Ability to use Claude Code / comfortable with AI-assisted development tools
- Experience with AI tools
- Micro Frontend architecture knowledge
- Java / Spring Boot
- Database experience (SQL / NoSQL)
Five9 Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Five9 and has not been reviewed or approved by Five9.
-
Healthcare Strength — Employer-paid employee premiums, multiple plan options, and broad coverage across medical, dental, vision, disability, FSAs, and EAP are emphasized as core elements of the package. These features position healthcare as a standout component of total rewards.
-
Equity Value & Accessibility — Equity grants and an ESPP are highlighted as meaningful parts of total compensation. Feedback suggests these stock components can materially enhance overall pay when company performance is favorable.
-
Fair & Transparent Compensation — Public job postings include salary ranges and company materials describe formal peer benchmarking of pay. These practices indicate structure and visibility around compensation decisions.
Five9 Insights
What We Do
Five9 is an industry-leading provider of cloud contact center solutions, bringing the power of cloud innovation to more than 2,000 customers worldwide and facilitating billions of customer engagements annually. The Five9 Intelligent Cloud Contact Center provides digital engagement, analytics, workflow automation, workforce optimization, and practical AI to help customers reimagine their customer experience. Designed to be reliable, secure, compliant, and scalable, the Five9 platform helps increase agent and supervisor productivity, connects the contact center to the business, and ultimately deliver tangible business results including increased revenue and enhanced customer trust and loyalty
