R

Retell AI Tech Stack

Voice AI agent platform for enterprise call automation

Technology, Information and Internet San Carlos, California 11–50 employees Privately Held

Retell AI builds a voice agent platform targeting healthcare, insurance, financial services, and logistics. The stack is modern and distributed (React, Node.js, Python, Kubernetes, multi-cloud AWS/Azure/GCP), but pain points reveal the hard problem: handling millions of real-time phone conversations at scale while managing latency and reliability. The engineering-heavy hiring mix (10 of 14 non-leadership roles) and active work on prompt orchestration, telephony integrations, and backend systems suggest they're still scaling the core platform rather than expanding outward.

Tech Stack 19 technologies

Core StackReact TypeScript Node.js Python JavaScript Kubernetes Docker Helm Terraform AWS DocuSign Salesforce n8n Zapier Azure GCP SQL Apollo Clearbit

What Retell AI Is Building

◆Challenges

Replacing human finetuning with ai
Scalable support economics
Reliance on human finetuning
Scaling fast
Automation vs headcount tradeoffs
Ensuring data quality across funnel
Resilience cost performance improvements
Handling millions of real-time phone conversations
Latency-sensitive high-traffic systems
Unblocking integration challenges

▲Active Projects

Develop internal tools and dashboards
Design ai-driven support workflows
Telephony integrations
Prompt orchestration
Building sales systems and processes
Security & compliance tooling
Full-stack integrations with enterprise tools
Prototype demos for clients
Scalable backend systems
Deployment pipelines for cloud saas and on-prem environments

Hiring Activity

Steady20 roles · 6 in 30d

Department

Engineering

10

Product

3

Sales

3

Support

2

Data

1

Marketing

1

Seniority

Senior

17

Lead

1

Manager

1

Staff

1

Company intelligence

Find more companies like Retell AI by tech stack, pain points and active projects

Get started free

About Retell AI

Retell AI provides a platform for building, testing, deploying, and monitoring voice AI agents. The product is positioned for enterprise use cases in call-heavy industries: healthcare (appointment scheduling, claims handling), insurance (intake, verification), financial services (customer service, debt collection), and logistics (tracking, dispatch coordination). The company operates at 11–50 headcount, hiring primarily in the US with a focus on senior engineering talent. Projects span internal tooling, cloud/on-prem deployment pipelines, Salesforce and DocuSign integrations, and security compliance work.

HeadquartersSan Carlos, California

Company Size11–50 employees

Hiring MarketsUnited States

Frequently Asked Questions

What tech stack does Retell AI use?

React, TypeScript, Node.js, Python, Kubernetes, Docker, Terraform, multi-cloud (AWS, Azure, GCP), SQL, Salesforce, and integration platforms like n8n and Zapier.