Senior Software Engineer – Voice AI Platform

Incognito Software Systems Inc; Woburn, Northern (MA, KY); Hybrid; USD 140,000 - 190,000; Full time

Job summary

Parlance in Woburn, MA (remote) is seeking a senior software engineer to own end-to-end voice AI platform development, from telephony and real-time media to LLM-driven workflows and EHR data integrations.

You will design real-time voice agents, build backend services in Python, review architecture, and collaborate with product and customers to ship reliable software.

Qualifications

• 6+ years building production software with Python focus.
• Experience with real-time voice/telephony stacks and audio latency.
• Experience integrating LLMs into production systems.
• Strong API design and CI/CD practices.
• Clear written and verbal communication.

Responsibilities

• Design and build real-time voice agents and STT/TTS pipelines.
• Own features across telephony, backend services, and dashboards.
• Connect agents to FHIR/EHR data securely.
• Debug production issues across cloud, telephony, and APIs.
• Contribute to architecture decisions and code reviews.

Skills

Python

API design

CI/CD

Debugging

Distributed systems

Communication

Tools

Pipecat

LiveKit

WebRTC

SIP

Five9/Webex CC

LLM integration

Job description

**Job Summary:**Parlance builds conversational voice AI for healthcare — patient-facing agents that answer calls, verify identity, schedule, and reach into EHRs like Epic, Cerner, Meditech, and Athena to get things done. We are looking for a senior full-stack engineer who has shipped on a modern voice agent stack and can own problems end to end: from telephony and real-time media, through orchestration and LLM logic, to the APIs and data services behind it. This is not a narrowly scoped integrations role. You will be one of the engineers shaping how our next-generation voice platform is built.**Job Description:****Senior Software Engineer – Voice AI Platform**Parlance | Woburn, MA (remote) | Full-time## **About the role**Parlance builds conversational voice AI for healthcare — patient-facing agents that answer calls, verify identity, schedule, and reach into EHRs like Epic, Cerner, Meditech, and Athena to get things done. We are looking for a senior full-stack engineer who has shipped on a modern voice agent stack and can own problems end to end: from telephony and real-time media, through orchestration and LLM logic, to the APIs and data services behind it.This is not a narrowly scoped integrations role. You will be one of the engineers shaping how our next-generation voice platform is built.## **What you’ll do*** Design and build real-time voice agents on frameworks such as Pipecat, LiveKit Agents, or comparable platforms — STT/TTS pipelines, turn-taking, interruption handling, latency tuning* Own features across the stack: telephony/CCaaS connectivity (SIP, WebRTC, Five9/Webex CC), backend services in Python, and the internal tools and dashboards the team runs on* Build and extend the services that connect agents to healthcare systems — FHIR-based EHR integrations, scheduling, and patient data access — with the security and reliability healthcare demands* Debug hard problems in production: audio quality, call flow failures, model behavior, and distributed-system issues across cloud, telephony, and third-party APIs* Set up evaluation and observability for voice agents so we know when they are working and when they are not* Contribute to architecture decisions, review code, and raise the bar for the team* Work directly with product, customer success, and customers to turn ambiguous requirements into shipped software## **What we’re looking for*** 6+ years building production software, with strong depth in Python and comfort across backend, frontend, and infrastructure* Hands-on experience building voice agents on Pipecat, LiveKit, Vapi, Retell, Daily, or a similar real-time framework — you have dealt with barge-in, latency budgets, and flaky audio, not just a demo* Working knowledge of real-time media and telephony: WebRTC, SIP, audio codecs, streaming STT/TTS (Deepgram, ElevenLabs, Cartesia, Azure Speech, or similar)* Experience integrating LLMs into production systems — prompt design, function calling, structured outputs, evals* Solid engineering fundamentals: API design, testing, CI/CD, containers, cloud deployment (Azure preferred; AWS/GCP fine)* Strong debugging instincts and the ability to work through ambiguity without waiting for a spec* Clear written and verbal communication## **Nice to have*** Healthcare integration experience: FHIR, HL7, EHR APIs, HIPAA-aware engineering* Contact center platform experience (Five9, Genesys, Webex CC, Amazon Connect)* Experience with CCaaS/IVR migration or replacing legacy speech platforms* Frontend experience with React/TypeScript for Web Portal## **Why Parlance**Small, senior engineering team with real ownership. Real patients on the other end of every call. Backed by Constellation Software, so the stability of a large company with the pace of a small one.## **Compensation & eligibility**Candidates must be authorized to work in the United States; we are unable to sponsor employment visas now or in the future.**Worker Type:**Regular**Number of Openings Available:**1