CareerPlan

Lead Full Stack Developer

Toronto, CanadaRemoteFull-time$130k–$150k2026-05-22 → 2026-10-22
HybridNo visa sponsorship

Core

Lead Full Stack Developer for an innovative AI platform initiative, owning technical direction across frontend, backend, agentic/AI services, and integrations.

Role type

Senior IC Lead Full Stack Developer (AI/Platform)

Builds

Multi-tier AI platform with React frontend, Spring Boot backend, and FastAPI agentic services

Domain

Advertising Technology / AI / LLM Agents

Deliverable

production ML models

Required skills

Software architecture, React/TypeScript, Java/Spring Boot, Python/FastAPI, Kubernetes, API design, distributed systems, AI/LLM agent orchestration, CI/CD

Preferred skills

Google ADK, LangGraph, LlamaIndex, Terraform, event-driven architectures, domain-driven design, regulated environment experience

Technologies

React, TypeScript, Spring Boot, FastAPI, Vertex AI, Claude, OpenAI, GKE, Kubernetes

Responsibilities

Own technical direction across platform tiers; lead architecture and design reviews; stay hands-on in code and reviews; mentor mid-level and senior engineers; partner on production reliability; drive integration architecture; champion LLM/agent layer

Seniority

Senior, hands-on IC with leadership responsibilities