David AI
Product Engineer, Backend
$165K–$225K
San Francisco · On-site · Full-time · Posted Aug 13, 2026
- Experience
- 2+ years of backend engineering experience.
About the job
Build backend systems, data pipelines, APIs, and AI/audio solutions that help users process and understand audio data for model training.
What you'll do
- Design scalable backend systems and data-processing pipelines for large volumes of audio data; maintain APIs and services used by customers.
- Build, deploy, and evaluate LLM- and DSP-based solutions to help customers understand dataset features.
- Work with researchers and Operations to rapidly develop backend infrastructure for new data collection.
What they ask for
- Backend engineering experience designing scalable systems, APIs, and data pipelines.
- Track record of delivering engineering solutions that provide customer value.
- Experience in a fast-paced environment with detail-oriented execution.
- Focus on robust, reliable infrastructure for production-grade products.
Nice to have
- Educational or professional experience with digital signal processing and speech.
- Experience deploying ML models in production; leadership of engineering teams in high-growth environments.
Pay
$165K – $225K USD base salary
Tools
Node.js, tRPC, PostgreSQL, AWS, Trigger.dev, WebRTC, FFmpeg, TypeScript
AI focus
Build, deploy, and evaluate LLM- and DSP-based solutions; AI/ML or audio experience is not required, but willingness to learn is expected.
Model-written summary · the original posting is authoritative