Senior Frontend Software Engineer (AI Receptionist)

Role overview

Join Cresta as a Senior Frontend Software Engineer (AI Receptionist). You will build and evolve web applications that enhance the AI Receptionist experience for enterprise customers, working closely with product, design, and engineering teams.

Responsibilities

• Collaborate with Product, Design, and Engineering to define and deliver new capabilities for an AI conversational agent
• Design and build modern, responsive, highly interactive web applications
• Integrate frontend applications with backend services using:
  • REST APIs
  • WebSockets
  • Real-time streaming technologies
• Own frontend engineering challenges such as performance optimization, observability, and debugging

Requirements

• 5+ years professional software engineering experience with strong frontend focus
• Proven experience building complex, production-scale web applications with strong UX
• Strong understanding of frontend architecture, component design, state management, and modern build systems
• Deep expertise in React, TypeScript, JavaScript, HTML, and CSS
• Experience with frontend tooling including Vite, Webpack, Node.js, and modern testing frameworks
• Ability to influence technical direction and deliver high-quality production code
• Experience collaborating closely with Product and Design
• Strong communication skills and comfort in a fast-paced environment

Nice-to-haves

• Experience integrating with backend services via REST, GraphQL, WebSockets, or streaming protocols
• Experience with AI-powered / Generative AI applications
• Experience with LLMs and AI agent platforms
• Experience building products for conversational AI, voice technology, or contact center software
• Experience with real-time communication technologies and/or cloud-native distributed systems
• Familiarity with Go or other backend technologies

Location / remote

• Full remote