The company 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.
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 (the company's site)
Top 50 AI Apps, a16z (2025) (https://a16z.com/the-ai-application-spending-report-where-startup-dollars-really-go/)
3 Fastest-Growing Software Company, G2 Best Software Awards 2026 (https://company.g2.com/news/g2s-2026-best-software-awards)
Best Agentic AI Software, G2 Best Software Awards 2026 (the company's site)
Enterprise Tech 30 Class of 2026, Nasdaq & Wing VC (the company's site)
Top-Ranked Startup, Lean AI Leaderboard (https://leanaileaderboard.com/)
ABOUT THE ROLE
We have more customer stories than we can tell!
As a Senior Forward Deployed Engineer, you'll deliver Retell's voice AI solutions to enterprise clients, embedding with their teams to build production-ready systems. You'll bridge technical and non-technical stakeholders with exceptional communication, driving adoption and shaping our platform through customer insights.
We’re seeing strong growth with enterprise customers across Latin America, so we’re specifically looking for engineers who are fluent in Spanish and can communicate effectively with customers and partners across the region.
Responsibilities
Lead end-to-end delivery of projects using Retell's voice agent platform - from prototyping to production, communicating progress and risks clearly.
Become go-to experts on building voice AI solutions, especially LLM prompting tips & tricks.
Partner with sales to engage clients to gather requirements, prototype demos, and present system designs.
Scope projects, resolve blockers, and align teams with concise updates.
Codify reusable patterns into tools or platform components.
Translate field feedback into actionable product and GTM recommendations.
YOU MIGHT THRIVE IF
Have 2+ years in customer-facing technical role.
Fluent in both Mandarin and English, with the ability to communicate effectively with enterprise customers.
Open to occasional travel, including international travel to support customer engagements when needed.
Excel at communicating and explaining complex technical concepts to both technical and non-technical audiences.
Have delivered production systems in fast-paced, ambiguous environments.
Write production-grade code in Python, JavaScript/TypeScript, or a similar language.
Understand LLM-powered systems and their impact on user experience.
Proactively manage risks, drive execution, and maintain momentum under pressure.
JOB DETAILS
Cash: 180k - 300k
Equity : Equity Provided
Location : Redwood City, CA, US - <u>relocation provided </u>
US Visas : the company is open to sponsoring work authorization for qualified candidates, including H1B/H-1B, TN, L-1, E-3, F-1 (OPT/CPT), and O-1 visas.
OTHER BENEFITS
100% coverage for medical, dental, and vision insurance
$70/day DoorDash credit for unlimited breakfast, lunch, dinner, and snacks