Five9

Software Engineer II

Five9
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3 months ago
Bengaluru, IndiaMid Level

Responsibilities

  • Design and build responsive, performant user interfaces using React, TanStack, Zustand, TypeScript, and JavaScript.
  • Collaborate on end-to-end feature development while gradually taking on backend work.
  • Use GitLab for version control, CI/CD pipelines, merge request workflows, and issue tracking.
  • Deploy and manage workloads on Google Cloud Platform CDN, GKE, and Cloud Storage.
  • Use AI-assisted development tools to accelerate software delivery.
  • Write clean, maintainable, strongly typed code with reusable components.
  • Partner with designers and product teams to turn specifications into shippable experiences.
  • Participate in code reviews, retrospectives, and architectural discussions.

Requirements

  • At least 4 years of post-internship experience with React and TypeScript.
  • Strong JavaScript and TypeScript skills, plus HTML and CSS knowledge.
  • Proficiency with React, TanStack, and Zustand.
  • Knowledge of UI component libraries, web accessibility, and internationalization.
  • Ability to work with Jest and Playwright.
  • Working knowledge of Jira, GitLab, Visual Studio, and CI/CD workflows.
  • Proficiency with Google Cloud Platform, Kubernetes, BigQuery, Cloud SQL, and CDN services.
  • Ability to use Claude Code.
  • Overall system knowledge and an engineering-focused approach are required.
  • Desirable experience includes AI tools, micro frontend architecture, Java, Spring Boot, and SQL or NoSQL databases.

Tech Stack

Categories

Five9

About Five9

1,001-5,000 employees

Five9 builds cloud contact center software (CCaaS) for enterprises to manage voice and digital customer interactions, powered by AI for routing, automation, and analytics. It sells its platform as SaaS with modules for IVR, outbound dialers, agent desktop, workforce engagement, and CRM integrations such as Salesforce and ServiceNow. The company is headquartered in San Ramon, CA, serves 2,500+ customers globally, and is a public company listed on Nasdaq (also BMV).

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