Senior Full-Stack Developer (Node.js, React, MongoDB)

VTRAC Consulting Corporation (WBE); Ontario; On-site; CAD 80,000 - 120,000; Full time

Job summary

A clean-tech organization in Ontario is seeking an experienced Senior Full-Stack Developer to join their team. You will build and scale a cutting-edge decarbonization platform, collaborating with cross-functional teams to create impactful, data-driven tools. The ideal candidate has over 5 years of experience in full-stack development with skills in TypeScript, Node.js, and React. This role offers the chance to work in a fast-paced, collaborative environment focused on sustainability.

Qualifications

• 5+ years of professional experience delivering full-stack features in a SaaS environment.
• Extensive experience with TypeScript, Node.js, React, and MongoDB.
• Strong backend experience with Python and FastAPI.

Responsibilities

• Build and own end-to-end features across the stack.
• Collaborate with product and design teams to translate requirements into technical solutions.
• Implement AI / ML-powered carbon reduction tools into the platform.

Skills

TypeScript

Node.js

React

MongoDB

Python

FastAPI

Google Cloud Platform

AI / ML

Education

Bachelor’s degree in Computer Science or related field

Job description

Description

This is an exciting opportunity for an experienced Senior Full-Stack Developer to join a clean-tech organization focused on helping companies reduce carbon emissions and operational costs across the lifecycle of their buildings. You will play a pivotal role in building and scaling a cutting-edge decarbonization platform from the ground up—shaping architecture, functionality, and user experience.

In this role, you will work closely with designers, product managers, and climate domain experts to create powerful, data-driven tools that enable smarter decisions in building management and sustainability. The environment is fast-paced and collaborative, ideal for a hands-on developer who thrives in early-stage, high-growth settings.

Key Responsibilities

• Build and own end-to-end features across the stack, from backend services to frontend UI.
• Collaborate with product, design, and domain experts to translate requirements into scalable technical solutions.
• Implement and integrate AI / ML-powered carbon reduction tools into the platform.
• Develop backend services with Node.js (Express) and Python (FastAPI).
• Build responsive, user-friendly interfaces using React (Vite).
• Design, implement, and maintain MongoDB data models and APIs.
• Leverage Google Cloud Platform (GCP) for hosting, storage, and deployment.
• Mentor junior developers and promote best practices in coding, testing, and deployment.
• Adapt quickly to changing requirements and user feedback.
• Participate in code reviews, architecture discussions, and sprint planning.

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, Mathematics, or related field.
• 5+ years of professional experience delivering full-stack features in a SaaS environment.
• Extensive experience with TypeScript, Node.js, React, and MongoDB.
• Strong backend experience with Python and FastAPI.
• Experience deploying and scaling applications on Google Cloud Platform.
• Proven ability to work in fast-paced, startup-like environments.
• Strong problem-solving skills, attention to detail, and a growth mindset.
• Excellent communication skills and the ability to collaborate across teams.
• Passion for sustainability and building impactful products.

Nice to Have

• Experience in clean-tech, energy efficiency, or building management software.
• Familiarity with AI / ML-based applications.
• Experience with CI / CD pipelines and cloud-based DevOps practices.

We thank all candidates in advance. Only selected candidates for interviews will be contacted. VTRAC is an equal-opportunity employer.