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

Hopper
Austin, Boston, Miami
Workplace: RemoteFull timeFunction: Customer Success & Account ManagementExperience: 6+ yearsSkills: ["Communication","Problem-solving","Iterative delivery","Mentoring","Pragmatic tradeoff-making"]

Own Hopper’s HTS Assist agentic AI assistant experience for flight changes, cancellations, refunds, and bookings delivered over chat and voice. Lead the realtime and voice layer end to end, integrating telephony/CPaaS, streaming speech-to-text/text-to-speech, and low-latency model orchestration. Build full-stack features with React/TypeScript, Scala/Python services, and GCP infrastructure, while ensuring safety/compliance, observability, and production reliability.

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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 Hopper’s HTS Assist agentic AI assistant experience for flight changes, cancellations, refunds, and bookings delivered over chat and voice. Lead the realtime and voice layer end to end, integrating telephony/CPaaS, streaming speech-to-text/text-to-speech, and low-latency model orchestration. Build full-stack features with React/TypeScript, Scala/Python services, and GCP infrastructure, while ensuring safety/compliance, observability, and production reliability.
Location: Austin, Boston, Miami
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/CPaaS integrations, streaming speech-to-text and text-to-speech pipelines, realtime model orchestration, and latency/quality budgets.
  • •Build product features across the stack with React/TypeScript web chat front ends, Scala/Python backend services, and GCP infrastructure.
  • •Design multi-tenant scale using one codebase configured for many partners.
  • •Implement safety and compliance capabilities for enterprise partners, including guardrails, content filtering, and PII redaction integration points.
  • •Maintain revenue-critical deployments with observability, alerting, incident response, and SLA performance; raise engineering standards through reviews and mentoring.

Pay and Benefits

Equity and Bonus:Equity
Perks:Paid LeaveHealth InsuranceDentalVision401k

Key Requirements

  • •6+ years of software engineering experience with senior-level ownership of production systems and full-stack range.
  • •Hands-on realtime systems experience, including voice applications and/or low-latency streaming systems (e.g., WebRTC/SIP).
  • •Strong modern frontend skills (React, TypeScript) and backend depth (Scala and/or Python), plus cloud infrastructure experience on GCP or AWS.
  • •Experience designing, building, and maintaining RESTful APIs, microservices, or event-driven systems.
  • •An operable-systems mindset covering SLAs, observability, on-call, and rollback plans.
Experience:6+ years
Skills:CommunicationProblem-solvingIterative deliveryMentoringPragmatic tradeoff-making
Tech Stack:ReactTypeScriptScalaPythonGCPAWSRESTful APIsMicroservicesEvent-driven systemsWebRTCSIPCPaaSTwilioAmazon ConnectOpenAI RealtimeDeepgramElevenLabsWhisperGenesysLiveKit

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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