Senior Full Stack Engineer (Realtime & Voice) Customer Experience Platform

Hopper
New York, Chicago
Workplace: RemoteFull timeUSD 200,000 - 250,000 annuallyFunction: Customer Success & Account ManagementSkills: ["Communication","Problem-solving","Iterative delivery","Ownership","Mentoring","Code review","Architecture reviews"]

Own the realtime and voice layer for an agentic AI travel assistant that resolves flight changes, cancellations, refunds, and bookings over chat and voice. Build end-to-end features across React/TypeScript front ends, Scala and Python backend services, and GCP infrastructure, including multi-tenant scaling, streaming speech-to-text/text-to-speech, telephony/CPaaS integrations, and safety/compliance guardrails. Ensure production reliability with observability, alerting, incident response, and latency/quality budgets.

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FursaFursa
Hopper
Hopper
4 days ago

Senior Full Stack Engineer (Realtime & Voice) Customer Experience Platform

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 11 hours agoStatus: Live

Job Summary

Own the realtime and voice layer for an agentic AI travel assistant that resolves flight changes, cancellations, refunds, and bookings over chat and voice. Build end-to-end features across React/TypeScript front ends, Scala and Python backend services, and GCP infrastructure, including multi-tenant scaling, streaming speech-to-text/text-to-speech, telephony/CPaaS integrations, and safety/compliance guardrails. Ensure production reliability with observability, alerting, incident response, and latency/quality budgets.
Location: New York, Chicago
Workplace: Remote
Employment Type: Full time
Job Function: Customer Success & Account Management
Seniority: Mid level

Key Responsibilities

  • •Own the voice channel end to end, including telephony and CPaaS integrations, streaming speech-to-text/text-to-speech pipelines, realtime model orchestration, and latency/quality budgets.
  • •Build product features across the stack, including React/TypeScript web chat front ends, Scala/Python backend services, and GCP infrastructure.
  • •Design for multi-tenant scale using a single codebase serving many partners through configuration.
  • •Implement safety and compliance plumbing for enterprise partners, including guardrails, content filtering, and PII redaction integration points.
  • •Maintain revenue-critical deployments with observability, alerting, incident response, and SLA performance while raising the engineering bar through reviews and mentoring.

Pay and Benefits

Salary: USD 200,000 - 250,000 annually
Perks:Paid LeaveHealth InsuranceDentalVision401kTravel AllowanceRemote Work

Key Requirements

  • •6+ years of software engineering experience with senior-level ownership across production systems and full-stack scope.
  • •Hands-on experience with realtime systems such as voice applications, WebRTC/SIP, or streaming low-latency products.
  • •Strong modern front-end skills (React, TypeScript) and backend depth (Scala/JVM and/or Python), plus cloud infrastructure experience on GCP or AWS.
  • •Track record designing and maintaining RESTful APIs, microservices, and/or event-driven systems.
  • •An operable-systems mindset covering SLAs, observability, on-call, and rollback plans.
Experience:TravelFintech
Skills:CommunicationProblem-solvingIterative deliveryOwnershipMentoringCode reviewArchitecture reviews
Tech Stack:ReactTypeScriptScalaPythonGCPAWSTwilioAmazon ConnectWebRTCSIPREST APIsMicroservicesEvent-driven systemsCPaaSStreaming speech-to-textText-to-speechTelephonyObservabilityAlertingOn-call

Company Brief

Hopper
Hopper is a mobile-first travel marketplace and travel-tech provider (HTS) that uses machine learning and fintech ancillaries (Price Freeze, disruption protection) to power consumer bookings and white-label partner travel portals globally.
Industry: TravelTech
Company Size: Large (251 to 1,000 employees)
Revenue: USD 500M to 1B
Growth: Scaleup
Valuation: Unicorn (USD 1B+)
Funding: Series E+
Headquarters: Montreal, Canada
Founded: 2007
Glassdoor
Glassdoor: 3.2
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