Backend Engineer (AI)

Location: San Francisco, United States; on-site

Salary: $165,000–$225,000 per year plus equity

Company

An audio data research company developing high-quality datasets and infrastructure for AI labs and enterprises.

What you will do

• Design and build scalable backend systems and core data-processing pipelines for terabytes of audio data.
• Architect and maintain APIs and services used by thousands of users.
• Build, deploy, and evaluate LLM- and DSP-based solutions for analyzing nuanced dataset features.
• Deploy backend infrastructure supporting new data collection in collaboration with research and Operations teams.
• Apply technologies across backend engineering, data engineering, machine learning, and signal processing to improve the product.

Requirements

• 2+ years of backend engineering experience.
• Strong fundamentals in scalable systems, APIs, and high-volume data pipelines.
• Track record of delivering engineering solutions that create customer value.
• Experience working in a fast-paced environment with detail-oriented execution.
• Ability to build robust, reliable, production-grade infrastructure.

Nice to have

• Experience with digital signal processing and a strong understanding of speech.
• Experience building and deploying machine learning models in production.
• Experience managing or tech-leading engineering teams in high-growth environments.

Culture & Benefits

• Unlimited paid time off.
• Health, dental, and vision coverage with 100% coverage for most plans.
• FSA, HSA, and 401(k) access.
• Meals twice daily, office snacks and beverages.
• Unlimited company-sponsored Barry's classes.