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About the Role
Sela is seeking a talented individual to own major components of our real-time voice platform, focusing on architecture, implementation, and production reliability. This role involves improving voice performance, building diagnostic tools, integrating our voice stack with simulation systems, training and deploying AI models, and evaluating new voice models and providers to enhance scalability, reliability, and cost efficiency for a platform handling hundreds of thousands of calls daily.
Responsibilities
- Own major components of Sela’s real-time voice platform, from architecture and implementation to reliability in production
- Improve voice performance across latency, audio quality, turn-taking, interruptions, transcription, and speech generation
- Build measurement, observability, and debugging tools that make complex voice issues easy to reproduce and diagnose
- Integrate our voice stack with simulation and evaluation systems, including end-to-end voice-to-voice evals
- Train, fine-tune, and deploy models for problems such as turn-taking, interruption handling, and voicemail detection
- Evaluate new voice models and providers, and improve the scalability, reliability, and cost efficiency of a platform handling hundreds of thousands of calls per day
Requirements
- 3–6 years of software engineering experience
- Experience building and operating low-latency, real-time, streaming, or distributed systems in production
- Strong Python or Go skills and a deep understanding of software design patterns and best practices
- Strong performance-engineering instincts and experience using instrumentation to diagnose latency, reliability, or quality issues
- Experience using AI coding tools or agents to ship maintainable, clean code
- Experience in high-growth startups, ideally at Seed through Series B
Location
- San Francisco
Work Type
- Hybrid
Experience Level
- 3-6 years
Benefits
- Top-of-market medical, dental, and vision coverage for you and your dependents
- 401(k) with a top-of-market employer match
- Unlimited PTO
- Snacks, weekly team lunches, and dinner on Sela
About the Company
- Sela is the market-leading AI voice agent for mortgage lenders, founded in 2024.
- The company has experienced rapid growth, reaching approximately $13M in revenue within 20 months.
- Sela serves 5 of the 10 largest independent mortgage banks in the U.S. as enterprise customers.
- The company has raised $21M in funding from top investors.
- Sela aims to make the cost of owning a home in the US approximately 1% cheaper.
- The mortgage industry is poised for disruption, and Sela is at the forefront of applying AI to create economic value.
- By owning the mortgage vertical, Sela intends to own the consumer relationship and become the essential AI infrastructure for high consideration consumer sales.
- The company offers a high-agency team environment with high standards, collaboration, and intensity.
- Sela is well-funded, having raised over $21M, including a $15M Series A in June 2026.