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Senior Full Stack Engineer – Telephony
Location
Canada
Posted
47 days ago
Salary
$135K - $185K / year
Seniority
Senior
Job Description
Senior Full Stack Engineer – Telephony
Yelp
• Build and scale Voice AI infrastructure: LLM-powered voice bots, real-time call transcription, and AI-generated call summaries using LiveKit, OpenAI, Deepgram, and Cartesia • Develop custom Twilio Flex plugins (React/Node.js) that sales and CS reps use every day: autodialers, call controls, admin dashboards, CRM integrations • Build backend services and APIs using Node.js, AWS Lambda, and DynamoDB that handle call routing, task management, and Salesforce reporting • Manage cloud infrastructure with Terraform, Terragrunt, and Atlantis across Twilio and AWS environments • Build new messaging capabilities (SMS, RCS) within Twilio Flex for customer communication • Work closely with business partners across Sales, Customer Success, Collections, and Product to scope and deliver features that drive revenue • Help keep the platform reliable through lightweight on-call/on-point rotations (production incidents are rare and the platform is stable)
Job Requirements
- Interest in or experience with AI/ML, especially conversational AI, voice technologies, or LLMs
- Strong experience with JavaScript/TypeScript and modern web development (React, Node.js)
- Experience building and running applications on AWS (Lambda, DynamoDB, S3, API Gateway, or similar services)
- Familiarity with infrastructure-as-code, ideally Terraform
- Comfortable working across the full stack: frontend, backend, and cloud infrastructure
- Good at debugging and working through problems across distributed systems that span multiple platforms
- Clear communicator who can work well with both engineers and non-technical business partners.
Benefits
- There may be flexibility with the range included in this posting should a candidate be leveled higher or lower than the posted range.
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