Full Stack Javascript Developer
Senior full-stack JavaScript/TypeScript contractor building enterprise-scale SaaS platforms: React single-page apps on the front end and Node.js/NestJS REST services on Google Cloud on the back end, in an Agile/Scrum team. Hybrid contract (through Dec 2026, likely extended) via staffing firm S.I. Systems for a consumer business client, based Downtown Toronto/Brampton a few days per week.
- Compensation
- Not disclosed
- Location
- Toronto, Canada
- Work setup
- Not specified
- Seniority
- Not specified
- Employment
- Not specified
- Experience
- 3+ years
- Category
- Fullstack
- Posted
Skills
Must have
- 10+ years of professional experience (Senior Fullstack Engineer)
- 5+ years of professional development with JavaScript/TypeScript and core JavaScript concepts
- 3+ years developing applications with React
- 3+ years developing applications with Node.js
- Strong understanding of RESTful APIs and API architecture
Nice to have
- Experience developing high-traffic or enterprise-scale web applications
- Experience with JIRA and Confluence
- Experience with Terraform
- Experience with Google Cloud Platform (GCP)
Full description
The ideal candidate is passionate about building efficient, intuitive, and high-quality user interfaces for enterprise-scale SaaS platforms and takes pride in
delivering reliable, maintainable software.
You will work in a fast-paced, collaborative environment using Agile/Scrum methodologies to design, develop, and deliver solutions that support evolving
business and customer needs.
Location: Downtown Toronto / Brampton - 2 to 3 days per week to start for team ramp up;1-2 days per week after thatStart Date: ASAPEnd Date: to December 2026, will be renewed until December 2027, or longerWhat You'll Do
- Design and build responsive, accessible, and user-friendly web interfaces using modern HTML5 and CSS3
- Develop robust Node.js/NestJS backend services that integrate with Google Cloud and external APIs
- Design, develop, and maintain scalable RESTful APIs and backend integrations
- Write and maintain unit and automated tests to ensure software quality, reliability, and maintainability
- Collaborate within an Agile/Scrum team to deliver solutions that meet evolving business requirements
- Contribute to software architecture, technical design, and UI/UX discussions
- Participate in code reviews and promote engineering best practices
- Troubleshoot, optimize, and continuously improve application performance and reliability
- Stay current with emerging technologies, industry trends, and modern web development practices
- Support a collaborative team culture that encourages learning, knowledge sharing, and continuous improvement
Must Haves
- 3+ years developing applications with React
- 3+ years developing applications with Node.js
- Strong understanding of RESTful APIs and API architecture
Nice to Have
- Experience with JIRA and Confluence
- Experience with Terraform
- Experience with Google Cloud Platform (GCP)
Our consumer business client is seeking a Senior Fullstack Engineer (10+ years) to develop enterprise-scale SaaS platforms using JavaScript/TypeScript, React, and Node.js
This is a fantastic opportunity for an experienced Senior Fullstack Developer (JavaScript/TypeScript) to join a growing software development team.
The ideal candidate is passionate about building efficient, intuitive, and high-quality user interfaces for enterprise-scale SaaS platforms and takes pride in