Senior Full Stack Engineer (Realtime & Voice)

Toronto, Ontario

On-site

Full-time

No salary postedToday

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Employment type: Full-time · On-site
Posted: September 14, 2026
Province: Ontario (ON)

Hiring confidence: Sparse posting · 22/100

This posting is missing most of the signals we look for, or shows patterns common to listings that are not actively being filled. Check with the employer before applying. How this is scored

Job Overview

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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 some of the world's largest travel brands. We're looking for a senior full stack engineer to anchor this product, owning the realtime and voice layer end to end while building across React/TypeScript front ends, Scala and Python services, and cloud infrastructure. The team is lean and senior, ownership is broad, and the path from your code…

This role is based in Ontario. Hopper is hiring for this full-time position through Jobily, where you can check how well your resume matches the posting before you apply.

Market context

About this role in Ontario

Average salary for Senior Full Stack Engineer (Realtime & Voice) in Ontario

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NOC code

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Typical qualifications for Canadian employers

Senior-level full stack engineering experience
Proficiency with React and TypeScript
Experience with Scala and Python
Cloud infrastructure knowledge
Experience building realtime systems

Fit check

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What you'll do

Own the realtime and voice layer end to end
Build and maintain React/TypeScript frontend applications
Develop Scala and Python backend services
Design and manage cloud infrastructure
Resolve flight changes, cancellations, refunds, and bookings through the platform
Work on chat and voice integration for travel assistance
Anchor the HTS Assist product development
Collaborate with a lean, senior engineering team

What you'll need

Senior-level full stack engineering experience
Proficiency with React and TypeScript
Experience with Scala and Python
Cloud infrastructure knowledge
Experience building realtime systems
Voice technology experience
Ability to own projects end-to-end