Senior Staff AI Systems Architect – Voice & Multimodal

Thomas Talent Network; San Francisco (CA); On-site; USD 225,000 - 300,000; Full time

Job summary

Confidential client, a seed-stage startup building the simulation and evaluation layer for Voice AI agents, seeks a Senior Member of Technical Staff. You will architect and develop systems for conversational AI, scaling AWS infrastructure to handle millions of real-time conversations, surface insights, and ensure safety and alignment with human intent.

The role is on-site in San Francisco, requiring senior-level ownership and deep experience across the stack. Visa sponsorship is not available.

Qualifications

• 6+ years of engineering experience.

Responsibilities

• Architect and develop simulation, analysis, and evaluation systems for conversational AI (voice and multimodal).
• Build resilient, scalable AWS infrastructure for millions of real-time conversations.
• Create algorithms and pipelines to surface insights and detect failure modes.
• Own your work across the stack from design to deployment.

Tools

AWS

Lambda

EC2

WebSockets

SIP

Job description

Confidential client, a seed-stage startup building the simulation and evaluation layer for Voice AI agents, seeks a Senior Member of Technical Staff. You will architect and develop systems for conversational AI, scaling AWS infrastructure to handle millions of real-time conversations, surface insights, and ensure safety and alignment with human intent.

The role is on-site in San Francisco, requiring senior-level ownership and deep experience across the stack. Visa sponsorship is not available.