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.
Founders Initiatives is a cross-functional team that works directly with Retell's founders on the company's highest-priority opportunities and challenges. Team members are expected to operate across functions, build from first principles, and help scale the business in whatever way creates the most impact.
This is not a narrowly scoped role, it is a high-ownership builder position where you will work across product, engineering, GTM, operations, and AI systems to design and ship core company infrastructure.
ABOUT THE ROLE
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!
We are hiring a Founders Initiatives, AI Agents builder to design and implement internal and external AI systems that power how Retell hires, sells, operates, and scales.
You will be responsible for building production-grade AI workflows, automations, and agent systems that directly impact company operations and customer experience.
This role sits at the intersection of applied AI, full-stack engineering, and startup operations.
KEY RESPONSIBILITIES
HR & Recruiting AI Systems
Build systems that extract structured signals from resumes (skills, experience, founder traits, domain expertise)
Develop lead scoring models to predict interview success and role fit
Design AI recruiter workflows for candidate screening and qualification
Automate personalized outbound email and candidate engagement workflows
Security & Compliance Automation
Build automation systems for customer security workflows (BAAs, DPAs, DocuSign, contract review flows)
Automate security questionnaire and compliance response generation
Improve internal tooling for enterprise readiness and audit processes
Operational Infrastructure Tools
Build systems for accounts receivable automation and finance-related email workflows
Create automated enterprise customer onboarding and account setup tools
Design internal systems that reduce manual operational overhead across teams
3rd-Party Integrations & Platform Work
Integrate with CRM systems such as Salesforce, HubSpot, and GoHighLevel
Build workflow automation using tools like Zapier, n8n, and Make
Design LLM-powered systems using OpenAI, Gemini, Claude, and other models
Own API-based integrations that connect internal systems across the company
GTM Engineering & Growth Automation
Build HubSpot and Lark automations to improve sales and marketing efficiency
Develop lifecycle automation systems for customer engagement and retention
Create targeted website personalization and ad content generation systems
Build email personalization and outbound automation pipelines at scale
YOU MIGHT THRIVE IF YOU
Have a Bachelor’s degree in Computer Science, Computer Engineering, or a closely related technical field.
Have 2+ years professional software engineering experience
Have 1+ year of startup experience and are comfortable with ambiguity and fast iteration.
Think like a founder and operate with high ownership
Have strong software engineering skills (backend, full-stack, or systems)
Have hands-on experience building with LLMs or AI agents in production
Are comfortable working across product, engineering, and operations
Move fast, iterate quickly, and are comfortable with ambiguity
Prefer building systems over working on narrowly defined tasks
Care deeply about real-world impact over theoretical work
JOB DETAILS
Cash: 180k - 300k
Equity : Offers Meaningful Equity
Location : Redwood City, CA, US - _ **relocation provided ** _
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.
OTHER BENEFITS
100% coverage for medical, dental, and vision insurance
$70/day DoorDash credit for unlimited breakfast, lunch, dinner, and snacks
