Senior Software Engineer – Voice AI Platform

Parlance Corporation; United States; Remote; USD 150,000 - 210,000; Full time

Job summary

Parlance builds conversational voice AI for healthcare, developing patient-facing agents that interact with EHRs to verify identity, schedule, and access data. We seek a senior full-stack engineer who can own problems from telephony to APIs and data services, shaping our next-generation voice platform.

This role is a senior, full-time position based in Woburn, MA with remote flexibility. You will work on real-time media pipelines, LLM integration, and end-to-end orchestration across the stack to

Qualifications

• 6+ years building production software.
• Strong Python backend and full-stack capabilities.
• Experience shipping real-time voice agents.
• Experience deploying on cloud (Azure preferred; AWS/GCP ok).
• Ability to work with cross-functional teams and communicate clearly.

Responsibilities

• Design and build real-time voice agents with Pipecat or LiveKit.
• Own features across the stack: telephony connectivity and Python backend.
• Build services connecting agents to EHRs (FHIR) with security.
• Debug production issues: audio quality and call flows.
• Set up observability and monitor voice agents.
• Contribute to architecture decisions and code reviews.
• Collaborate with product and customers to ship software.

Skills

Python

Backend

Frontend

CI/CD

Real-time voice

API design

Tools

Pipecat

LiveKit

Vapi

Retell

Daily

WebRTC

SIP

Five9/Webex CC

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