RQ11399 - Software Developer - Full Stack - Senior

• Cloud, Database & DevOps Engineering

Software Developer – Full Stack – Senior (RQ11399)

Client: Ministry of Public and Business Service Delivery and Procurement

Location: 222 Jarvis Street, Toronto, Ontario (Onsite)

We are seeking a highly skilled Senior Full Stack Software Developer to support the design, development, integration, and delivery of enterprise-level digital solutions within a complex public-sector environment.

The successful candidate will be responsible for building scalable, secure, and high-performing applications across the complete technology stack, including front-end development, back-end services, APIs, cloud platforms, databases, DevOps, and modern software architecture.

The ideal candidate will have advanced experience with React/Next.js, Node.js, Python, FastAPI, .NET Core, C#, RESTful APIs, Azure cloud services, database technologies, CI/CD pipelines, and AI/ML solution development. Experience with computer vision, machine learning models, and cloud-native architecture will be highly valued.

Role Snapshot

Requisition ID: RQ11399

Job Title: Software Developer – Full Stack – Senior

Client: Ministry of Public and Business Service Delivery and Procurement

Work Location: 222 Jarvis Street, Toronto, Ontario (Onsite)

Estimated Start Date: August 31, 2026

Estimated End Date: March 31, 2027

Contract Duration: 246 Business Days

Extension: Probable after the initial mandate

Work Schedule: 7.25 Hours per Day

Security Clearance: No Clearance Required

Key Responsibilities

• Full Stack Application Development & Engineering Delivery (55%)
• Design, develop, test, and maintain enterprise-grade web applications.
• Translate technical specifications into fully tested software solutions.
• Develop scalable front-end applications using:
  • React.js
  • Next.js
  • Node.js
• Develop robust backend services using:
  • Python
  • FastAPI
  • .NET Core
  • C#
• Design and implement RESTful APIs and application integrations.
• Develop and maintain data pipelines involving:
  • Data extraction
  • Data transformation
  • Data loading processes
• Create reusable, modular, and testable software components.
• Implement responsive UI designs and modern user interface architectures.
• Build applications optimized for:
  • Performance
  • Scalability
  • Security
  • Maintainability
• Perform coding, debugging, unit testing, and technical troubleshooting.
• Support application deployment, migration, and production issue resolution.
• Cloud, Database & DevOps Engineering
• Develop and support cloud-based solutions using Microsoft Azure.
• Design applications leveraging modern cloud architectures.
• Implement CI/CD pipelines and automated deployment practices.
• Work with Azure DevOps tools and Agile delivery platforms.
• Design and optimize database solutions including:
  • Azure SQL Server
  • SQL Server
  • Oracle
  • Cosmos DB
  • Redis Cache
• Perform database optimization activities including:
  • Query tuning
  • Stored procedures
  • Triggers
  • Functions
  • Encryption
  • Performance optimization
• Utilize Azure Key Vault for secure secrets and configuration management.
• Support container-based application packaging and deployment.
• AI / Machine Learning Development (15%)
• Design, integrate, and deploy AI/ML capabilities within enterprise applications.
• Develop and train machine learning models using:
  • TensorFlow
  • PyTorch
• Build computer vision solutions using:
  • OpenCV
• Perform model evaluation and optimization using metrics including:
  • Accuracy
  • Precision
  • Detection performance
• Support AI-driven automation and intelligent application enhancements.
• Collaborate with technical teams on ML model integration and deployment.
• Architecture & Solution Design (20%)
• Participate in application architecture and technical solution design.
• Design modern cloud-based architectures using:
  • Microservices
  • RESTful APIs
  • Serverless architecture patterns
• Develop secure and scalable application solutions across:
  • Front-end layers
  • API services
  • Back-end systems
  • Database platforms
• Define application integration patterns and technical standards.
• Optimize application performance and state management.
• Create reusable architecture components and frameworks.
• Apply software design principles and enterprise architecture best practices.
• Technical Leadership & Collaboration (10%)
• Provide technical leadership within development teams.
• Establish and promote engineering best practices.
• Mentor developers and contribute to technical excellence.
• Collaborate with:
  • Product Managers
  • Business Analysts
  • UX Designers
  • Architects
  • Stakeholders
• Participate in Agile ceremonies including:
  • Scrum
  • Kanban
  • Sprint planning
  • Technical reviews
• Prepare technical documentation, assessments, and solution designs.
• Demonstrate strong communication, analytical, and problem-solving skills.

Required Skills & Experience

Skill / Experience Requirement Senior Full Stack Development Experience Required React.js / Next.js / Node.js Advanced Python Development Advanced FastAPI REST API Development Required .NET Core Services / Web API Required C# Development Required RESTful API Design Required Responsive UI Architecture Required Azure Cloud Development Required Azure DevOps & CI/CD Required Database Design & Optimization Required Cloud Architecture Required Microservices Architecture Required AI/ML Development Preferred Computer Vision Experience Preferred

Technical Skills & Tools

Front-End Technologies

• React.js
• Next.js
• Node.js
• JavaScript
• HTML/CSS
• Responsive Design Patterns
• UX/UI Principles

Backend Technologies

• Python
• FastAPI
• .NET Core
• C#
• REST APIs
• SOAP Services

Cloud & DevOps

• Microsoft Azure
• Azure DevOps
• CI/CD Pipelines
• Azure Key Vault
• Container Deployments

Databases

• Azure SQL Server
• SQL Server
• Oracle
• Cosmos DB
• Redis Cache

Security Technologies

• OAuth 2.0
• JWT Authentication
• Web Security Practices
• Session Management

AI/ML Technologies

• TensorFlow
• PyTorch
• OpenCV
• Computer Vision
• Machine Learning Model Evaluation

Highly Desired Qualifications

• Experience delivering solutions for large government applications.
• Ontario Public Sector (OPS) experience.
• Experience with cloud-native enterprise applications.
• Experience with Agile/Scrum/Kanban environments.
• Strong knowledge of application architecture patterns.
• Experience with Angular and modern JavaScript frameworks.
• Experience with Java web technologies:
  • Tomcat
  • WebLogic
  • EJB
  • Servlet
• Strong SQL development skills.
• Experience with JIRA and Agile delivery tools.
• Knowledge of Accessibility for Ontarians with Disabilities Act (AODA) standards.
• Experience conducting technical walkthroughs and design reviews.

Ideal Candidate Profile

The ideal candidate is a Senior Full Stack Developer with extensive experience delivering enterprise applications using modern technologies and cloud platforms. You have strong hands-on expertise across front-end, backend, APIs, databases, DevOps, architecture, and AI/ML integration.

You are comfortable owning technical solutions, mentoring development teams, designing scalable architectures, and delivering secure applications within Agile enterprise environments.

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