Staff Software Engineer - On-Prem Voice AI Infrastructure

Lupitor; San Francisco (CA); On-site; USD 150,000 - 190,000; Full time

Job summary

Lupitor is building the infrastructure layer for enterprise voice AI, delivering on-prem and air-gapped deployments for regulated environments. You will design, implement, and iterate the systems powering live customer conversations at scale, taking ideas from concept to production and owning refinement end to end.

You will optimize the inference stack, focusing on latency, throughput, and cost, and ensure portability and operability across diverse customer environments while maintaining high

Qualifications

• Experience building and shipping production backend or infrastructure systems.
• Strong grasp of distributed systems and real-time workloads.
• Ability to work independently and own large pieces of work.
• Experience with AI-assisted development workflows to ship high-quality code fast.
• Sound technical judgment on architecture and tradeoffs.
• Clear communication with technical and non-technical teammates.

Responsibilities

• Build and ship the voice infrastructure that runs in production.
• Own the inference stack for TTS and speech-to-speech, focusing on latency, throughput, and cost.
• Deploy into on-prem and air-gapped customer infrastructure with security constraints.
• Move fast without lowering the bar on reliability, performance, and code health.

Skills

Production backend

Distributed systems

Real-time workloads

Performance engineering

Ownership

AI-assisted development

Architecture judgment

Communication

Job description

Lupitor is building the infrastructure layer for enterprise voice AI, delivering on-prem and air-gapped deployments for regulated environments. You will design, implement, and iterate the systems powering live customer conversations at scale, taking ideas from concept to production and owning refinement end to end.

You will optimize the inference stack, focusing on latency, throughput, and cost, and ensure portability and operability across diverse customer environments while maintaining high