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

About the Role:

• HTS Assist is Hopper's agentic AI assistant for travel, resolving flight changes, cancellations, refunds, and bookings over chat and voice for major travel brands.
• As a senior full stack engineer, you'll anchor this product, owning the realtime and voice layer end-to-end while building across front end, backend, and cloud infrastructure.
• The team is lean and senior, with broad ownership and a short path from code to customer.

What you'll do:

• Own the voice channel end-to-end, including CPaaS integrations, streaming speech-to-text/text-to-speech pipelines, and latency budgets.
• Build product features across the stack, including web chat front ends in React/TypeScript, backend services in Scala and Python, and infrastructure on GCP.
• Design for multi-tenant scale, build safety and compliance plumbing, and keep revenue-critical deployments healthy through observability and incident response.

What we're looking for:

• 6+ years of software engineering experience with senior-level ownership of production systems and genuine full-stack range.
• Hands-on realtime systems experience (voice, WebRTC/SIP, streaming media) and strength in React/TypeScript, Scala, Python, and cloud infrastructure.
• An operable-systems mindset and ability to break down complex problems, make pragmatic tradeoffs, and ship iteratively.

Perks and benefits:

• Well-funded startup with competitive salary, pre-IPO equity, and unlimited PTO.
• 100% premium coverage for group insurance, telemedicine services, and an RRSP plan.
• Carrot Cash travel stipend, work-from-home stipend, and access to co-working spaces.