Senior Full Stack Developer – Generative AI & Autonomous Agents - Toronto, Canada - Hybrid (10038)

Extremenetworks; Toronto; On-site; CAD 120,000 - 180,000; Full time

Job summary

Extremenetworks is seeking a Senior Full Stack Developer to join an agile team in Toronto, Canada. The role blends robust backend services with modern front-end interfaces to build GenAI-enabled solutions.

You will design and implement end-to-end systems using Java, Python, microservices, Angular, and React, while deploying with Docker/Kubernetes and cloud platforms. Strong collaboration with ML teams is essential.

Qualifications

• 7+ years of professional experience as a full stack or combined backend/frontend engineer.
• Strong skills in Java and Python, with microservices and distributed systems experience.
• Deep knowledge of FastAPI, OpenAPI, gRPC, and asynchronous workflows.
• SQL and NoSQL databases, distributed computing (Kafka, Redis, RabbitMQ), performance optimization.
• Frontend expertise with Angular and React, including TypeScript and HTML/CSS.
• State management with Redux/NgRx, and building accessible UIs.
• Cloud & DevOps with AWS/Azure/GCP, Docker, Kubernetes, CI/CD.
• Security best practices across the stack; strong collaboration and communication.

Responsibilities

• Design, implement, and optimize end-to-end solutions for GenAI applications, from backend services to user-facing interfaces.
• Build modular and reusable UI components in Angular and React, ensuring responsive and accessible interfaces.
• Develop and optimize backend services and APIs (REST, GraphQL, gRPC) to support real-time AI-driven applications.
• Architect and maintain distributed microservices (synchronous and asynchronous).
• Integrate ML models into scalable, production-ready systems with ML teams.
• Manage workflow orchestration with DAGs and asynchronous task queues.
• Implement automated testing, CI/CD, Docker/Kubernetes, and cloud deployments.
• Ensure security, performance optimization, and fault tolerance in backend systems.
• Collaborate with UX/product teams for human-in-the-loop AI experiences.
• Mentor junior developers and promote coding standards.

Skills

Java

Python

Angular

React

Microservices

REST/GraphQL/gRPC

Distributed systems

TypeScript

Redux/NgRx

Leadership

Tools

Docker

Kubernetes

CI/CD

OpenAPI

FastAPI

Kafka

Redis

RabbitMQ

Job description

We are seeking an experienced Senior Full Stack Developer with deep expertise in backend systems (Java, Python, microservices) and modern UI frameworks (Angular, React) to join our high-performing agile team.

This role focuses on building robust, scalable, and user-friendly end-to-end solutions for GenAI applications, combining cutting-edge backend services with intuitive front-end experiences.

Full Stack Development

• 5+ years
• Design, implement, and optimize end-to-end solutions for GenAI applications, from backend services to user-facing interfaces.
• Build modular and reusable UI components in Angular and React, ensuring responsive and accessible interfaces.
• Develop and optimize backend services and APIs (REST, GraphQL, gRPC) to support real-time AI-driven applications.

Backend Egineering

• Architect and maintain distributed microservices (synchronous and asynchronous) using Java, Python, and FastAPI.
• Integrate ML models into scalable, production-ready systems in collaboration with ML engineers and scientists.
• Manage workflow orchestration with DAGs and asynchronous task queues.
• Implement automated testing, CI/CD pipelines, containerization (Docker, Kubernetes), and cloud-native deployments (AWS, Azure, GCP).
• Ensure security, performance optimization, and fault tolerance in backend systems.

Frontend Engineering

• Collaborate with UX and product teams to create human-in-the-loop AI experiences with Angular and React.
• Implement robust state management (Redux, NgRx, or equivalent) for real-time, data-intensive applications.
• Optimize rendering, bundle size, and performance for enterprise-scale UIs.
• Lead UI testing (Jest, Cypress, Playwright, Jasmine, Karma) to maintain quality and reliability.

Collaboration & Leadership

• Work closely with cross-functional teams to deliver cohesive GenAI-powered products.
• Mentor junior developers, promote coding standards, and drive best practices across front-end and back-end development.
• Communicate effectively with technical and non-technical stakeholders, ensuring transparency and alignment.

• 7+ years of professional experience as a full stack or combined backend/frontend engineer.
• Backend expertise:
• Strong skills in Java and Python, with experience in microservices and distributed systems.
• Deep knowledge of FastAPI, OpenAPI, gRPC, and asynchronous workflows.
• Proficiency with SQL and NoSQL databases, distributed computing (Kafka, Redis, RabbitMQ), and performance optimization.
• Frontend expertise:
• Expert-level experience with Angular and React, including TypeScript, JavaScript (ES6+), HTML5, CSS3/SASS.
• Strong grasp of state management frameworks (Redux, NgRx, etc.).
• Proven ability to build responsive, accessible, and performant enterprise UIs.
• Cloud & DevOps: Hands-on with AWS/Azure/GCP, Docker, Kubernetes, and CI/CD pipelines.
• Strong understanding of security best practices across the stack.
• Excellent collaboration, problem-solving, and communication skills.