Senior Full-Stack Engineer: Real-Time Voice Platform

Hopper Inc.; New York (NY); Hybrid; USD 150,000 - 210,000; Full time

Benefits offered by this job

Unlimited PTO

Carrot Cash travel stipend

Work-from-home stipend

Job summary

Hopper Inc. is seeking a senior full stack engineer to anchor HTS Assist, Hopper's agentic AI assistant for travel. You will own the realtime and voice layer end-to-end, building React/TypeScript front ends, Scala and Python services, and cloud infrastructure.

The role emphasizes ownership, multi-tenant scale, and rapid delivery across voice, chat, and telephony integrations. You will work on streaming speech-to-text, TTS pipelines, and latency budgets, while ensuring safety, observability, and

Qualifications

• 6+ years of software engineering experience with full-stack ownership.

Responsibilities

• Own voice channel end-to-end including telephony and CPaaS integrations
• Build features across stack: React/TypeScript front ends, Scala/Python services, and cloud infra
• Design for multi-tenant scale with one codebase
• Build safety/compliance plumbing for audit and PII redaction
• Maintain health of deployments via observability, alerts, and SLAs
• Configure partner telephony integrations and go-lives
• Mentor and review code to raise engineering bar

Skills

Senior full stack

React/TypeScript

Scala

Python

Cloud infrastructure

WebRTC/SIP

CPaaS integration

Observability / on-call

Tools

Twilio

Amazon Connect

GCP

AWS

Job description

Hopper Inc. is seeking a senior full stack engineer to anchor HTS Assist, Hopper's agentic AI assistant for travel. You will own the realtime and voice layer end-to-end, building React/TypeScript front ends, Scala and Python services, and cloud infrastructure.

The role emphasizes ownership, multi-tenant scale, and rapid delivery across voice, chat, and telephony integrations. You will work on streaming speech-to-text, TTS pipelines, and latency budgets, while ensuring safety, observability, and