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Senior Frontend Software Engineer, AI UX

Toronto, Ontario💼 Full-time🗓 2026-09-28 → 2026-09-29

Core

Design and build full-stack features for a conversational AI assistant (Alfie), with primary ownership on the frontend/UX side to shape AI-native user experiences.

Role type

Senior Full-Stack Software Engineer (AI UX)

Builds

Conversational AI assistant interfaces and agentic workflows

Domain

AI/ML, Conversational UI, Global Work Platform

Deliverable

product features

Required skills

React, TypeScript, LLM-based system design, agentic workflows, prompt engineering, streaming UI, API design, frontend/backend integration

Preferred skills

Generative UI techniques, multi-step agent reasoning, observability for agentic systems, clean code architecture, mentorship

Technologies

React, TypeScript

Responsibilities

Design and build full-stack features for the conversational AI assistant; apply LLM and agentic system patterns to shape assistant behavior and UI; prototype new interaction patterns for generative AI; troubleshoot end-to-end production issues including AI-specific failure modes; mentor junior team members.

Seniority

Senior, hands-on IC

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