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Retell AI is using first-principles thinking to reimagine the call center with cutting-edge voice AI. Thousands of companies now use Retell's AI voice agents to handle sales, support, and logistics calls that once required large teams of human agents. Backed by Y Combinator, Alt Capital, and other leading investors, we've scaled to $80M in ARR with a team of 50, up from $5M at the start of 2025, and are now valued at over $1.5B.
Our vision for 2026 is to build a modern CX platform where entire contact centers are powered by AI. Instead of basic automation that needs constant human tuning, we're creating intelligent AI “workers” that act as frontline agents, QA analysts, and managers, continuously executing, monitoring, and improving every customer interaction.
We're growing fast and looking for ambitious builders who want to tackle hard technical problems, move quickly, and have a real impact on one of the fastest-growing voice AI companies in the world.
Let's build the future together.
Recent recognition:
No. 1 Best Places to Work in the Bay Area, San Francisco Business Times 2026
#3 Fastest-Growing Software Company, G2 Best Software Awards 2026
Retell AI transforms customer experience with voice AI for enterprises, including customers like CVS/Aetna, American Airlines, Lenovo, and Grab. We have more customer stories than we can tell!
As a Frontend Engineer at Retell AI, you’ll build the user experiences that power our voice automation platform from prompt management and dashboards to analytics and customer-facing tools. You’ll design and ship intuitive, responsive interfaces using React and TypeScript, working closely with backend and DevOps partners to ensure everything is fast, reliable, and scalable.
You’ll own frontend projects end to end, collaborate directly with customers to onboard and debug real-world use cases, and turn feedback into meaningful UX improvements. This is a hands-on, high-impact role where you’ll move quickly, take ownership, and help shape a product used in production by teams building with voice AI.
Design and build core UI features like prompt management, dashboards, and analytics tools.
Develop responsive, intuitive interfaces using React, TypeScript, HTML, CSS, and JavaScript.
Collaborate on backend APIs and DevOps to ensure seamless, scalable systems.
Lead frontend projects from concept to launch, owning architecture, coding, and iteration.
Work with customers to onboard, debug, and turn feedback into UX improvements.
Have 2+ years of experience building production-grade apps with React and TypeScript.
Hold a degree in CS, CE, or equivalent practical experience.
Take ownership like a founder, proactively solving problems with clean design thinking.
Thrive in fast-paced environments, quickly learning new tools and frameworks.
Collaborate effectively, balancing clarity and momentum in small, dynamic teams.
Cash: 200k - 300k
Equity: Offers Meaningful Equity
Location: Redwood City, CA, US
US Visas: Retell AI is open to sponsoring work authorization for qualified candidates, including H-1B, TN, L-1, E-3, F-1 (OPT/CPT), and O-1 visas.
100% coverage for medical, dental, and vision insurance
$70/day DoorDash credit for unlimited breakfast, lunch, dinner, and snacks
$200/month wellness reimbursement (gym, fitness classes, etc.)
$300/month commuter reimbursement (gas, Caltrain, etc.)
$75/month phone bill reimbursement
$50/month internet reimbursement
Best Offer Upfront: Choose from three cash-equity balance options; no negotiation needed.
Top 1% Talent: Above-market pay (top 5 percentile) to attract exceptional builders.
High Ownership: Small teams, >$1M revenue/employee, and significant equity.
Performance-Based: Offers tied to interview performance, not experience or past salaries.
Intro Call (15-20min): Connect with our talent team to get a deeper look at the team and the work you'd be doing.
First Technical Phone Interview (45 min): Practical coding session focused on code fluency and system design (For frontend roles, we will focus on React-specific questions)
Technical Phone Interview (45 min): Practical coding session focused on code fluency and focused more heavily on your systems design approach
Onsite/Virtual Interviews (2–3 hrs): Hosted in our office if located in the Bay Area or virtual, with three rounds:
Practical Coding: Tackle real-world coding tasks with debugging.
System Design: Architect a production-ready system.
Tools & Automation: Build automations or improve workflows in any basic environment setup like python, java, node.js, etc.
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