Retell AI
Senior Software Engineer, Backend
San Francisco Bay Area · Senior
Stay score
odds of building a lasting career here
Sponsors, but it's cap-subject — you still face the weighted lottery (~61% per draw at Level IV). Good if you win; have a cap-exempt backup on your list.
Lottery odds assume a STEM candidate.
Personalize to your clock →Employer immigration record
from this employer's Department of Labor filings
Files H-1B transfers
Sourced from Department of Labor LCA, PERM and prevailing-wage disclosure data. Employer matching is by name, so figures may be split across an employer's legal entities. Absence of a filing means none appears in our copy of the data, not that none exists.
Community outcomes
No reports yet — be the first to help the next applicant.
About the role
- We have more customer stories than we can tell!
- As a Senior Backend Engineer, you'll shape the core systems powering millions of AI-driven conversations.
- You'll tackle real-time audio, global telephony, and developer tooling, working across the stack with the founding team.
Responsibilities
- Build foundational architecture for Retell's platform, such as prompt orchestration, testing frameworks, observability dashboards, and telephony integrations.
- Design scalable backend systems and DevOps workflows for reliable performance across millions of calls.
- Lead complex projects from architecture to production, driving delivery and monitoring.
- Collaborate with product and design teams to create intuitive APIs and interfaces for quick customer onboarding.
- Support customer onboarding, troubleshoot issues, and turn feedback into product improvements.
- Take ownership like a founder and enjoy building core systems that need to be fast, reliable, and correct.
- Communicate clearly, collaborate well across teams, and move work forward with momentum.
Requirements
- Have 2+ years of backend development experience and a strong foundation in CS fundamentals (CS/CE/EE degree or equivalent).
Benefits
- 100% coverage for medical, dental, and vision insurance
- $200/month wellness reimbursement (gym, fitness classes, etc.)
- $300/month commuter reimbursement (gas, Caltrain, etc.)
- $75/month phone bill reimbursement
- $50/month internet reimbursement
- Have startup experience or the grit to operate in a high-velocity environment, bonus points if you've worked on infrastructure, databases, or large-scale backend systems.
- Equity: Offer Equity
- Best Offer Upfront: Choose from three cash-equity balance options; no negotiation needed.
- High Ownership: Small teams, >$1M revenue/employee, and significant equity.
Visa & Work Authorization
- 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.
This listing is sourced directly from Retell AI's careers page and normalized into a canonical job model.