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

About the Role

Day-to-Day Responsibilities

• Own telephony and CPaaS integrations, streaming speech pipelines, realtime model orchestration, and latency and quality budgets.
• Build React and TypeScript web chat features, Scala and Python backend services, and infrastructure on GCP.
• Design multi-tenant systems that serve many partners through configuration rather than code forks.
• Build guardrails, content filtering, and PII redaction integration points for enterprise safety and compliance.
• Maintain revenue-critical deployments through observability, alerting, incident response, and SLA performance.
• Build capabilities for partner telephony integrations and go-lives.
• Contribute to code reviews, architecture reviews, and mentoring.

Required Qualifications

• At least 6 years of software engineering experience with senior-level ownership of production systems and full-stack range.
• Hands-on realtime systems experience, such as voice applications, WebRTC or SIP, streaming media, or comparable low-latency products.
• Strength in React and TypeScript, with backend depth in Scala or another JVM language and/or Python.
• Cloud infrastructure experience on GCP or AWS.
• Experience with RESTful APIs, microservices, or event-driven systems.
• Familiarity using AI coding tools and owning the quality of shipped work.
• Experience with SLAs, observability, on-call rotations, and rollback plans.
• Strong communication, pragmatic problem-solving, and iterative delivery skills.

Preferred Experience

• Conversational AI, LLM orchestration, or speech technologies such as Deepgram, ElevenLabs, Whisper, or OpenAI Realtime.
• Cloud telephony or CPaaS platforms such as Twilio, Amazon Connect, Genesys, or LiveKit.
• Customer service, CRM, contact center, or workflow automation tools.
• Travel industry technologies such as PSS/GDS, hotel PMS, or CRS.

Compensation

• The posting states a compensation range of CAD 200,000 to CAD 250,000, but does not specify a pay cadence.

Perks and Benefits

• Hopper covers 100% of group insurance premiums and provides disability coverage.
• Employees have access to an HSA, telemedicine services, an RRSP plan, parental leave, and unlimited PTO.
• Additional benefits include a travel stipend, coworking access, and a work-from-home stipend.

About Hopper