Full Stack Developer

Quantiphi
Full Time Toronto or United States Posted 1 week ago
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Job Overview

Design and build scalable, high-performance applications powering next-generation Agentic AI platforms. Lead the development of API-first, distributed systems and contribute across the stack from backend microservices to modern frontend experiences. Partner closely with AI/ML teams to integrate LLM-driven workflows, RAG architectures, and multi-agent systems into production-grade applications. This is a hands-on engineering role with strong ownership across architecture, developer experience, and system reliability.

Responsibilities

  • Design and build scalable full stack applications using React, TypeScript, and Next.js on the frontend and Python (FastAPI) and/or Node.js on the backend.
  • Architect and maintain RESTful APIs and microservices with strong versioning, backward compatibility, and API-first design principles.
  • Develop distributed systems leveraging event-driven architectures, messaging systems (Kafka, Pub/Sub), and asynchronous processing.
  • Build and integrate LLM-powered applications, including RAG pipelines, agentic workflows, and tool-calling frameworks (LangChain, LangGraph).
  • Collaborate with AI/ML teams to integrate model serving platforms and orchestrate multi-agent systems.
  • Implement real-time capabilities using WebSockets, Server-Sent Events (SSE), or streaming frameworks.
  • Ensure high-quality engineering standards across testing (TDD/BDD), CI/CD pipelines, and infrastructure-as-code.
  • Deploy and manage cloud-native applications on GCP and/or Azure, leveraging Docker.

Qualifications

  • 5-10 years of experience.