Software Engineer III, Voice AI

🕒 il y a 1 mois

🇺🇸 États-Unis – Télétravail

💵 $105 700 - $132 100 / an

⏰ Temps Plein

🟡 Intermédiaire

🟠 Senior

🧑‍💻 Développeur Full-Stack

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Natera

Site WebLinkedInTous les Emplois

1001 - 5000 employés

Fondée en 2004

🏥 Santé

🧬 Biotechnologie

⚕️ Assurance santé

Healthcare • Biotechnology • Healthcare Insurance

Natera est un leader mondial de la technologie de tests d'ADN libre circulant, spécialisé dans les tests génétiques non invasifs et les diagnostics. Les solutions innovantes de l'entreprise se concentrent sur des domaines tels que le dépistage prénatal, la détection du cancer et la surveillance des greffes d'organes. En utilisant une bioinformatique avancée et une analyse de l'ADN, Natera fournit aux professionnels de la santé et aux patients des informations cruciales pour prendre des décisions médicales plus éclairées.

Description

• Take ownership of assigned voice AI features and components, guiding them through the full software development lifecycle. • Contribute to design discussions, code reviews, and best practice adoption within the Voice AI team. • Drive technical decisions on voice pipeline optimization — VAD tuning, turn-taking, interruption handling, and latency management. • Plan and prioritize tasks in an Agile environment, ensuring timely and high-quality delivery. • Work with Product Managers and stakeholders to refine requirements and scope technical efforts for conversational AI features. • Monitor voice platform health metrics (call efficacy, ASR accuracy, per-segment latency) and prioritize improvements based on data. • Mentor junior team members, sharing knowledge and best practices in voice AI architecture, TypeScript, and real-time systems. • Encourage a culture of continuous learning and technical excellence through pair programming and design reviews. • Document voice AI patterns, integration contracts, and operational runbooks for the team. • Partner with Product Managers, QA, and clinical operations to gather requirements, validate conversational designs, and guide projects from inception to deployment. • Coordinate with other engineering teams to integrate voice agents with internal services via authenticated APIs. • Work with the analytics team to ensure voice metrics flow correctly through the data pipeline for reporting and optimization. • Drive improvements in our multi-agent orchestration approach — tool calling patterns, agent handoff logic, and state management across conversation turns. • Advocate for high-quality standards and automated testing strategies for conversational AI systems, including voice-specific test patterns (simulated calls, transcript validation, latency benchmarks). • Identify and resolve voice-specific UX issues: ASR errors on medical terminology, silence detection tuning, barge-in recovery, and end-to-end response latency.

🎯 Exigences

• 5+ years of overall software development experience, focusing on scalable backend services using Node.js and TypeScript. • 1+ years of experience with voice AI, conversational AI, or real-time audio systems in production. • Hands-on experience with agentic LLM architectures — tool calling, multi-agent orchestration, prompt engineering, and conversation state management. • Familiarity with voice AI pipeline components: STT (Deepgram, Azure Speech, OpenAI Whisper), TTS (ElevenLabs, OpenAI, Cartesia), and LLM APIs (OpenAI Realtime API, Anthropic Claude). • Experience with telephony systems — Twilio (media streams, SIP, IVR) or equivalent WebSocket-based audio streaming platforms. • Understanding of voice-specific challenges: VAD configuration, turn-taking, interruption handling, latency budgets, and audio codec management (mulaw/PCM). • Solid understanding of the software development lifecycle (SDLC), including build, configuration, release, and deployment. • Knowledge of microservice architecture and distributed systems best practices. • Proficiency with AWS services (ECS Fargate, Lambda, DynamoDB, S3, Kafka/MSK, API Gateway). • Experience with event-driven architecture and message processing (e.g., Apache Kafka, SQS). • Strong relational database skills (MySQL) and exposure to NoSQL databases (DynamoDB, Redis). • Demonstrated teamwork skills and a collaborative mindset. • Excellent communication and organizational skills. • Experience with RAG architectures (AWS Bedrock, vector stores, embedding models) is a plus.

🏖️ Avantages

• Health insurance • 401(k) benefits • Paid time off • Flexible working hours • Pregnancy and baby bonding leave • Free testing for employees and their families • Commuter benefits • Employee referral program