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

VTRAC Consulting Corporation (WBE)

Ontario

On-site

CAD 65,000 - 95,000

Part time

14 days+

Get more replies from employers

Send a job-specific resume in minutes.

Job summary

A clean-tech organization is seeking an experienced Senior Full-Stack Developer to build a decarbonization platform. Responsibilities include developing backend services and user interfaces, collaborating with cross-functional teams, and mentoring junior developers. Ideal candidates should have 5+ years of full-stack experience and be passionate about sustainability. This role is hybrid, based in Ontario.

Qualifications

5+ years of professional experience delivering full-stack features in a SaaS environment.
Strong problem-solving skills and attention to detail.
Excellent communication skills to collaborate across teams.

Responsibilities

Build and own end-to-end features across the stack.
Collaborate with product and design teams to translate requirements into solutions.
Mentor junior developers and promote best coding practices.

Skills

TypeScript

Node.js

React

MongoDB

Python

FastAPI

Google Cloud Platform

Education

Bachelor’s degree in Computer Science or related field

Tools

Cloud-based DevOps practices

Job description

Direct message the job poster from VTRAC Consulting Corporation (WBE)

Sr. Technical Recruiter @ VTRAC Consulting | IT, Engineering

VTRAC Consulting Corporation

Thank you for applying to VTRAC opportunities. Please e-mail your resume as an MS-WORD document in confidence. Subject: Senior Full-Stack Developer (Python, React, MongoDB) Attention: sunnyr@vtrac.com or call: (508) 905-6468

Position #: 251203

Position Type: Contract, 3-6 Months

No. of Positions: 1

Location: GTA - Hybrid

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.

Good to Have