Senior Fullstack Engineer (AI)

TL;DR

Senior Fullstack Engineer (Voice AI): Building a real-time voice AI product to make live conversations feel natural and reliable with an accent on latency reduction, telephony integrations, and conversation flow. Focus on designing scalable backend services, implementing WebRTC and SIP protocols, and solving real-time interaction challenges.

Location: Hybrid in Austin, Madison, or San Francisco (USA)

Salary: $145,000–$217,000

Company

hirify.global provides customer experience software that powers billions of interactions, enabling businesses to build meaningful relationships with their customers.

What you will do

• Design and implement backend services for real-time voice conversations, focusing on latency, reliability, and observability.
• Build integrations for telephony, WebRTC, real-time audio processing, and external AI/speech services.
• Ship end-to-end product features across backend systems and user-facing web experiences.
• Improve platform reliability through monitoring, tracing, autoscaling, and failure recovery.
• Address real-time interaction challenges such as turn-taking, interruptions, and human handoff.
• Collaborate with product, design, and ML teams to deliver polished voice experiences.

Requirements

• 3+ years of experience building production software with a significant backend focus.
• Experience with real-time or event-driven systems such as WebRTC, SIP, or streaming APIs.
• Proficiency in Python and asynchronous architectures.
• Must be located in or able to work from Austin, Madison, or San Francisco to support the hybrid work model.

Nice to have

• Experience with telephony stacks, media servers, or ASR/TTS integrations.
• Familiarity with LLMs, speech models, or conversational AI production infrastructure.
• Experience shipping both backend and frontend user experiences.
• Expertise in diagnosing performance issues under real-time constraints.

Culture & Benefits

• Hybrid work model providing flexibility and purposeful in-person collaboration.
• Commitment to a fulfilling and inclusive experience with global diversity, equity, and inclusion.
• Competitive annualized base salary with eligibility for bonuses and other incentives.