About the company
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.
Responsibilities
- Own the design and evolution of core platform and systems architecture.
- Lead complex technical initiatives end-to-end, from concept to production.
- Make high-leverage technical decisions that balance speed, reliability, and scale.
- Raise the technical bar through design reviews, mentoring, and hands-on leadership.
- Partner closely with product to translate business needs into robust technical solutions.
- Identify and resolve performance, scalability, and reliability bottlenecks.
- Help define engineering best practices as we scale the team and platform.
Requirements
- 9+ years of experience building and operating production systems.
- You’ve operated at Staff or Principal level (or equivalent scope), even if the title wasn’t official.
- You’re strong in systems design and can reason clearly about tradeoffs.
- You move fast but care deeply about correctness, reliability, and maintainability.
- You’re comfortable owning ambiguous problems and defining the path forward.
- You’ve built or scaled platforms used by real customers at meaningful volume.
- You enjoy being hands-on writing code, reviewing designs, and unblocking teams.
- Bonus points if you’ve worked with: distributed systems, Voice AI, real-time systems, APIs at scale, infra/platform work, or developer-facing products.
Conditions
- Cash: $225-$350k
- Equity: Offers Meaningful Equity
- Location: Redwood City, CA, US (100% 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.
- 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