Senior Software Engineer - Frontend UI
Quick Summary
Strong React and TypeScript proficiency; experience with other modern frameworks (Vue, Angular, Svelte) is a good signal. Testing experience with Jest and/or Playwright,
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.
Requirements
~1 min read- Strong React and TypeScript proficiency; experience with other modern frameworks (Vue, Angular, Svelte) is a good signal.
- Testing experience with Jest and/or Playwright, with an understanding of the value of thorough test coverage.
- Able to operate autonomously on a small, fast-paced team; fills gaps and makes reasonable calls without constant direction.
- Strong written communication and collaboration skills for a remote, async-first, distributed environment.
- Comfortable conducting code reviews, providing constructive feedback, and mentoring less experienced engineers.
- Prior experience using AI coding tools and a genuine willingness to evolve those skills as the space changes.
- Bachelor's degree (or equivalent) in a relevant discipline.
- Service owners and their teams
- Technical leadership and senior management, including VPs
- Engineering teams
- Network and Telecom teams
- Customer service teams
- Compliance and infosec teams
- This is not a customer-facing role.
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.
- Prior experience in CCaaS, agent desktop, or UI platform roles.
- Familiarity with TanStack Query and Zustand.
- Web accessibility knowledge; familiarity with WCAG standards and building accessible UIs.
- Monorepo and micro-frontend architecture experience; Nx preferred, but PNPM, Lerna, and other tools are good signals.
- Experience with WebSockets or real-time application development.
Location & Eligibility
Listing Details
- Posted
- June 26, 2026
- First seen
- June 26, 2026
- Last seen
- June 26, 2026
Posting Health
- Days active
- 0
- Repost count
- 0
- Trust Level
- 70%
- Scored at
- June 26, 2026
Signal breakdown
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