Senior Full Stack Engineer,Solve Voice Job Madison area,Wisconsin USA,Software Development

Senior Full Stack Engineer, Solve Voice

Our mission is to power exceptional service for every person on the planet. We’re building a real‑time voice AI product that makes live conversations feel natural and reliable, reducing latency and improving conversation flow.

Responsibilities

Design and implement backend services powering 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 when required.
Improve platform reliability and performance: monitoring, tracing, autoscaling, and failure recovery.
Address real‑time interaction challenges such as turn‑taking, interruptions, responsiveness, and graceful handoff to humans.
Partner with product and design to deliver voice experiences that feel polished and human.

What you bring to the role

Solid backend fundamentals with experience designing APIs, async systems, and scalable integrations.
Hands‑on experience with real‑time systems (WebRTC, Web Sockets) or telephony protocols.
Product‑driven engineering mindset – you ship user‑facing features and care about UX quality.
Ability to debug and optimize latency and reliability issues in production systems.
Enjoys cross‑functional collaboration with product, design, and ML/speech teams.

Basic Qualifications

3+ years building production software, with significant backend engineering experience.
Experience with real‑time or event‑driven systems (WebRTC, SIP, streaming APIs).
Proficiency in Python or equivalent backend languages and async architectures.

Preferred Qualifications

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

US annualized base salary range: $–$. This position may also be eligible for bonus, benefits, or related incentives.

Zendesk is an equal‑opportunity employer. If you are based in the United States and would like more information about your EEO rights under the law, please contact us. Zendesk also makes reasonable accommodations for applicants with disabilities. If you have a disability and require a reasonable accommodation, please send an e‑mail to

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