Senior Software Engineer, Frontend

About the role

Retell AI is using first-principles thinking to reimagine the call center with cutting-edge voice AI. In this role, you will architect and deliver the user experiences that define how enterprises interact with AI-powered call centers. You will own the frontend architecture for critical products that manage prompts, monitor analytics, and drive customer interactions for some of the largest names in voice AI. Your work will directly support high-stakes use cases in sales, support, and logistics automation. You will translate complex requirements into intuitive, responsive, and production-ready interfaces. This position is for a builder who wants to move fast and ship impactful features at scale.

Key facts

What you'll do

• Design and build core UI features such as prompt management, dashboards, and analytics tools that power enterprise voice workflows.
• Develop responsive, intuitive interfaces using React, TypeScript, HTML, and CSS while maintaining strict JavaScript standards.
• Collaborate with backend and DevOps teams to integrate frontend services into scalable and reliable systems.
• Lead frontend projects from initial concept through launch, taking ownership of architecture, implementation, and iterative improvements.
• Work directly with customers during onboarding and debugging sessions to surface real-world challenges and drive UX enhancements.
• Translate customer feedback and product requirements into precise frontend specifications and interactive prototypes.
• Optimize application performance for high-traffic scenarios, ensuring fast load times and smooth user interactions.
• Partner with designers to refine visual systems and ensure consistency across a growing suite of products.
• Implement accessible and international-friendly interfaces that support diverse enterprise users.
• Contribute to internal tools that improve developer velocity and frontend team collaboration.

Requirements

• Hold a degree in Computer Science, Computer Engineering, or equivalent practical experience.
• Bring 2+ years of experience building production-grade applications with React and TypeScript in a professional setting.
• Demonstrate strong ownership by acting like a founder and solving problems with clean, maintainable design thinking.
• Thrive in fast-paced environments by quickly learning new tools, frameworks, and best practices.
• Collaborate effectively with cross-functional teams, balancing clarity and momentum in small, dynamic groups.
• Communicate clearly in both written and verbal formats while working with customers and technical partners.
• Navigate ambiguity and make sound technical decisions with limited direction.
• Maintain a strong sense of quality by writing tests and reviewing code for robustness.

Practical notes

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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.

1. Intro Call (15-20min)

• Connect with our talent team to get a deeper look at the team and the work you'd be doing.

2. First Technical Phone Interview (60min)

• Discuss system design, coding concepts, and your experience building production interfaces.

3. Take-home Assignment (2-4 hours)

• Build a small feature using React and TypeScript to demonstrate your practical skills.

4. Second Technical Interview (60min)

• Dive deeper into implementation details, trade-offs, and how you approach real-world constraints.

5. Final Round (45min)

• Meet with senior leadership to align on vision, ownership, and long-term impact.

INTERVIEW DETAILS

First technical phone interview will focus on your experience with React, state management, and writing clean, testable JavaScript. Expect to discuss how you approach debugging, performance, and scalability in production applications. For the take-home assignment, you will be asked to implement a feature similar to prompt management or analytics UI using a provided codebase. During the final round, you will review your work with senior engineers and product managers, explaining your decisions and trade-offs.

BENEFITS & COMPENSATION

• Cash: $200k - $300k
• Equity: Offers Meaningful Equity
• 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

COMPENSATION PHILOSOPHY

• 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.

This role is ideal for a frontend engineer who wants to shape the future of enterprise voice AI while working with a fast-growing team that values ownership, clarity, and impact. If you are passionate about building user-facing products that handle real customer workloads, this is your opportunity to make a difference at a company redefining the contact center landscape.