Staff Backend Engineer, Voices

About the role

We are looking for a Staff Backend Engineer to lead the development of core backend services for an AI‑powered voice generation platform. You will design, build, and operate distributed systems that combine multiple text‑to‑speech providers with our own AI models, delivering high‑quality voice output at scale.

Key responsibilities

• Design and maintain backend systems that power script preview and voice generation workflows.
• Develop orchestration layers that integrate third‑party TTS providers and internal AI models.
• Implement reliability mechanisms such as retries, failover, throttling, and fallback logic for external APIs.
• Design data persistence and consistency solutions to ensure reproducible voice outputs.
• Improve storage, retrieval, and reuse of voice assets across the platform.
• Build evaluation and recommendation features for voice discovery.
• Monitor performance and user‑experience metrics using observability tools.
• Collaborate with frontend, product, and research teams to define APIs and end‑to‑end workflows.

Required profile

• Several years of experience building production‑grade backend systems.
• Strong product mindset with focus on user‑facing impact.
• Proven ability to work with third‑party APIs and manage external service dependencies.
• Experience designing reliable, observable, and scalable services.
• Comfort collaborating across frontend, backend, and product teams.

Required skills

• Python
• FastAPI (or similar web framework)
• Distributed systems design
• API integration and orchestration
• Reliability engineering (retries, failover, throttling)
• Observability and monitoring tools
• Data consistency and storage mechanisms