Senior Frontend Software Engineer, Cresta
AI Receptionist
+ Equity
Real-time intelligence for contact centers
Be an early applicant
Real-time intelligence for contact centers
501-1000 employees
Be an early applicant
+ Equity
501-1000 employees
Company mission
To use AI to help people learn high-value skills and make business radically more productive.
Role
Who you are
- 5+ years of professional software engineering experience with a strong focus on frontend development
- Deep expertise with modern frontend technologies including React, TypeScript, JavaScript, HTML, and CSS
- Experience building complex, production-scale web applications with exceptional user experiences
- Strong understanding of frontend architecture, component design, state management, and modern build systems
- Experience integrating with backend services using REST APIs, GraphQL, WebSockets, or streaming protocols
- Familiarity with frontend tooling including Vite, Webpack, Node.js, and modern testing frameworks
- Strong understanding of application performance optimization, observability, and debugging
- Experience collaborating closely with Product and Design teams to build polished enterprise applications
- Ability to influence technical direction while contributing high-quality production code
- Excellent communication skills and the ability to thrive in a fast-paced, collaborative environment
Desirable
- Experience building AI-powered or Generative AI applications
- Experience working with Large Language Models (LLMs) and AI agent platforms
- Experience building products for conversational AI, voice technology, or contact center software
- Experience with real-time communication technologies
- Experience with Go or other backend technologies
- Experience building cloud-native distributed systems
What the job involves
- Cresta AI Receptionist is redefining how businesses engage with customers by delivering natural, intelligent, and reliable AI-powered voice experiences
- Our AI Receptionist answers calls, understands customer intent, completes tasks, schedules appointments, routes conversations, and seamlessly hands off to human agents when needed
- As a Senior Software Engineer, Frontend, you'll help build the web applications that power the AI Receptionist experience for enterprise customers
- You'll work closely with Product, Design, AI/ML, and Platform teams to create intuitive interfaces for configuring AI agents, managing deployments, monitoring live conversations, analyzing performance, and continuously improving customer experiences
- You'll have the opportunity to solve challenging frontend engineering problems while helping shape the future of conversational AI and voice automation
- Partner with Product Managers, Designers, and Engineers to define and deliver new AI Receptionist capabilities
- Design and build modern, responsive, and highly interactive web applications using React and TypeScript
- Create intuitive user experiences for configuring conversational AI, managing knowledge sources, testing AI behavior, and deploying voice agents
- Build reusable UI components and frontend infrastructure that improve consistency, scalability, and engineering velocity
- Integrate frontend applications with backend services using REST APIs, WebSockets, and real-time streaming technologies
- Collaborate closely with AI and ML engineers to surface LLM-powered capabilities through intuitive user experiences
- Optimize application performance, accessibility, reliability, and responsiveness across enterprise-scale deployments
- Drive frontend architecture decisions and establish engineering best practices
- Improve developer productivity through testing, CI/CD, observability, monitoring, and automation
- Mentor engineers through technical leadership, design reviews, and collaborative problem solving
Our take
Cresta is an innovative customer service platform which leverages artificial intelligence in order to assist sales and service agents in improving their performance. The platform identifies the best employees and analyses why they outperform their colleagues before providing personalised guidance to other members of staff.
This unique approach enables the rapid sharing of best practices, and both improves and consistently implements customer service across an organisation. The app is fully compatible with mobile platforms, effectively providing an expert at every customer touch point. In addition, the machine learning aspect of Cresta enables companies to continuously optimise their performance.
Given that businesses globally spend over a trillion dollars on customer service calls each year, Cresta has a massive opportunity if it can continue to improve this aspect of its business for its clients. The company has already been recognised as an innovator in the space, with Forbes naming it one of the best startup employers of 2026, and the expansion of its AI solutions suggests it's poised and ready to move with the times and find further success.
Steph
Company Specialist at Welcome to the Jungle
Insights
129% employee growth in 12 months
Company
Funding (last 2 of 4 rounds)
Nov 2024
$125m
SERIES D
Mar 2022
$80m
SERIES C
Total funding: $276m
Company benefits
- Work with an A+ team of ex-Founders, world leading scientists, and nationally competitive athletes
- Weekly lunch & learn
- Mentorship - A world class mentorship board advises and mentors our team-members to capture the opportunity ahead of us
Company HQ
Heritage District, Sunnyvale, CA
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