Senior Software Engineer, Internal Deployed

The posting, as Retell AI wrote it

ABOUT RETELL AI

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 https://finance.yahoo.com/technology/ai/articles/voice-ai-startup-retell-ai-145200025.html
• 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 https://www.retellai.com/blog/retell-ai-recognized-as-the-best-agentic-ai-software-by-g2
• #4 Fastest-Growing Software Vendor, Brex Benchmark 2025 https://www.brex.com/journal/brex-benchmark-december-2025
• Enterprise Tech 30 Class of 2026, Nasdaq & Wing VC https://www.nasdaq.com/videos/retell-ai
• Top-Ranked Startup, Lean AI Leaderboard https://leanaileaderboard.com/
• Backed by Y Combinator https://www.ycombinator.com/companies/retell-ai

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!

ABOUT FOUNDERS INITIATIVES

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

We are hiring an Software Engineer, Internal Deployed to build the AI systems and automations that power how Retell operates internally. You'll work directly with our founders and teams to streamline recruiting, sales, finance, operations, and customer support th
[…]
Prefer building end-to-end systems over narrowly defined tasks.

• Care deeply about shipping impactful products that solve real problems.
• Exceptional new graduates and engineers with up to 1 year of experience are encouraged to apply.

JOB DETAILS

• 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.

COMPENSATION

Our compensation ranges reflect different scopes of responsibility and cash/equity options. Your offer will depend on the skills and impact you demonstrate during interviews, the scope of the role, and your preferred cash/equity balance.

Annual base salary ranges

• Senior: $210,000–$250,000
• Staff: $200,000–$300,000

OTHER BENEFITS

• 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.

INTERVIEW PROCESS

• 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): System Design & Project Deep Dive
• Second Tech Screen (45min): Tools & Automation
• Final Interview
• Coding and Technical Round (90 min)
• Cross-Functional Interview (30 min)
• Past Project Deep Dive (30 min)