RQ09981 - Software Developer - Full Stack - Senior

@ Source Code

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Toronto, Ontario

7+ years experience

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SIGNALS

Overview

Source Code is hiring a senior full stack software developer on a 3-month contract with three possible extensions, onsite at 40 St. Clair W, Toronto, for the Ministry of Public and Business Service Delivery and Procurement's Land & Resources Cluster. The developer maintains and supports the Ceres plant health application (MERN stack on Azure), fixing bugs, keeping it available, and planning technical upgrades. Some work may be assigned to Bill 5 related projects.

Responsibilities:

Resolve issues reported on the Ceres application and keep it continuously available
Identify and prioritize technical upgrades to the MERN stack components
Deliver bug fixes and functional improvements based on user feedback
Maintain up-to-date technical documentation for knowledge transfer

Requirements summary:

7+ years full stack experience with MERN stack
4+ years developing build books for releases
Experience with AODA accessibility design
Knowledge of OAuth 2, SAML and IT security practices
Experience in Agile delivery environments

Tools & skills

Azure Azure DevOps Git

Source and dates

Source type not verified · manatal

Employer posting date: Not provided
First seen by our source: 2026-10-12
Source record updated: 2026-10-12

These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.

Job details

Seniority	Senior
Department	Software development
Experience	7+ years
Travel	air: none · ground: none
Work setting	Office
Position	Mostly sitting
Physical demands	physical low · computer high
Languages	English

Summary and details written by AI from the posting; the employer’s posting is the authority.

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Source Code

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Job description

RQ09981 - Software Developer - Full Stack - Senior

3-month contract (fiscal year end), 3 possible extensions

ONSITE - 40 St. Claire W, Toronto

Land & Resources Cluster - Ministry of Public and Business Service Delivery and Procurement

To respond to the priorities of the Government of Ontario through the passage of the Bill 5, Protect Ontario by Unleashing Our Economy Act 2025, the resource may be partially assigned to Bill 5 related projects or initiatives on an as needed basis.

Background:

This Ceres application was launched in February 2023 for ministry users, to improve management of plant health data and enable timely access to critical information (present and historical), as well as efficient identification of pest threats. The requirement is to make sure that the CERES application is continuously available, while also enabling implementation of bug fixes, issue resolution or minor improvements, based on user feedback.

We are looking for a senior full stack software developer who will be responsible for providing maintenance and support for theCeres application. The Ceres application is built using MERN (MongoDB, Express, React, Node.js) technology stack and hosted on Azure OPS tenant. The work activities for Ceres Maintenance and Support will entail:

· Responding to and resolving any issues reported on the application and ensuring that the application is continuously available for use

· Identifying and prioritizing technical upgrades to keep the platform up to date, including upgrades to the components in the technology stack

· Bug Fixes and Improvements identified regarding the functionality of the application

Soft Skills and Experience

Ability to work independently and work closely with other developers especially for system integration.
Professional team player with ability to work collaboratively with other project team members.
Analytical and problem-solving skills.
Attention to detail
Strong communication skills

Must have:

7+ years full-stack developer experience, working with the specific MERN (MongoDB, Express, React, Node.js) technology stack.
4+ years developing and documenting build books for managing build and deployment of application releases
Technical documentation skills to ensure all technical documentation are sufficiently updated to ensure proper knowledge transfer
Experience designing and delivering solutions which incorporate
Accessibility for Ontarians with Disability Act (AODA)
Experience working in an Agile software delivery environment
Knowledge of IT security best practices and protocols (OAuth 2, SAML)

Desirable Skills/Nice-to-Have's:

Experience building and deploying cloud native solutions, ideally in Azure
Experience working on Agricultural data collection and analysis applications
Familiarity with relevant Government of Ontario Information and Technology Standards (GO-ITS)
Experience in source control, DevOps, CI/CD, and related tools (Azure DevOps, Git)