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Simpplr

Intranet platform enabling employee experience

Lead Voice AI Engineer

Natural Language Processing & LLMsConfirmed live in the last 24 hours
Full-timeNo salary listedHybrid

About the Job

Requirements

  • At least 7 years of software engineering experience.
  • Strong experience building production distributed or real-time systems.
  • Hands-on experience with Conversational AI, Voice AI, Speech AI, or LLM-based agents.
  • Strong programming skills in Python, Java, Go, or an equivalent language.
  • Experience with APIs, streaming systems, asynchronous architectures, and cloud-native platforms.
  • Strong understanding of system design, scalability, reliability, and observability.

Responsibilities

  • Design and build the real-time voice runtime for live conversations.
  • Build and optimize streaming automatic speech recognition, text-to-speech, voice activity detection, endpointing, turn-taking, and barge-in.
  • Build adaptive voice pipelines for high-noise frontline environments, hospitals, factory floors, and warehouses, including server-side noise cancellation, echo suppression, and dynamic automatic speech recognition/text-to-speech optimization for PSTN and mobile phone audio quality.
  • Architect multi-provider speech routing across a broad multilingual matrix, including code-switching such as Spanglish and Hinglish, with real-time language detection, provider selection, and fallback chains operating mid-call.
  • Develop Voice Agents that support multi-turn, multi-intent conversations, context switching, clarification, and recovery.
  • Integrate Voice Agents with workflows, APIs, CRM, ITSM, knowledge bases, and enterprise systems.
  • Build secure identity verification, consent, privacy, audit, and compliance controls.
  • Implement warm transfer, callback, queue routing, and seamless human handoff with full conversation context.
  • Optimize multilingual voice quality across accents, noisy environments, latency, and naturalness.
  • Build evaluation frameworks for word error rate, intent accuracy, response latency, containment, resolution, escalation, and customer satisfaction.
  • Establish production observability across the full call path from automatic speech recognition through the large language model, tools, and text-to-speech.
  • Evaluate and integrate leading speech, telephony, and artificial intelligence technologies.
  • Define architecture, engineering standards, and production readiness for the Voice AI platform.
  • Mentor engineers and lead critical technical design reviews.

Desired Qualifications

  • Hands-on experience with Deepgram for real-time automatic speech recognition and streaming speech recognition.
  • Hands-on experience with LiveKit for WebRTC, real-time audio, voice-agent runtime, and session orchestration.
  • Hands-on experience with ElevenLabs for low-latency, natural text-to-speech and conversational voice experiences.
  • Experience with OpenAI, Azure Speech, Google Speech, or similar automatic speech recognition/text-to-speech technologies.
  • Experience with WebRTC, SIP, RTP, WebSockets, Twilio, or contact-center platforms.
  • Experience with large language model agents, tool calling, retrieval-augmented generation, LangGraph, or similar orchestration frameworks.
  • Experience integrating enterprise systems such as Salesforce, ServiceNow, Jira, Zendesk, or Workday.
  • Experience with multilingual speech, accent handling, noisy environments, personally identifiable information redaction, and call-recording controls.
  • Experience building high-scale, multi-tenant software-as-a-service platforms.

About the Company

Simpplr

Intranet platform enabling employee experience

Simpplr provides a modern intranet platform that helps organizations improve internal communication, employee experience, and company culture. Its product is a SaaS intranet that employees access via web and mobile, delivering personalized feeds, internal news, documents, and social features to connect people across locations and work modes. The platform tracks employee sentiment and digital wellbeing, making it easier for admins to measure engagement and for employees to find information quickly, collaborate, and stay aligned. Unlike generic collaboration tools, Simpplr focuses on a cohesive experience tailored to companies of all sizes, with a subscription model based on users or service level. The goal is to help businesses boost productivity and collaboration by creating a centralized, easy-to-use hub for information and culture that scales with growth and supports remote and distributed teams.

Company size
501-1,000
Company stage
Series D
Total funding
$123M
Headquarters
Redwood City, CA
Founded
2014

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