Senior Full Stack Developer

6 days ago


Toronto, Ontario, Canada Teckhorizon Inc Full time $120,000 - $180,000 per year

Assignment ID:
RQ09711

Client:
Government of Ontario – Government Services Integration Cluster

Location:
Toronto, ON (Hybrid)

Type:
Contract

Duration:
Initial term with a possible 6-month extension

Position Overview
We are seeking a highly skilled
Senior Full Stack Developer
to design, develop, and deploy modern
cloud-native applications
leveraging
AI/ML capabilities
. The ideal candidate will have deep technical expertise across front-end, back-end, and cloud environments, with strong experience in

,
Python (FastAPI)
,
.NET Core
, and
Azure DevOps
.

This role requires a
self-motivated and detail-oriented professional
passionate about solving complex challenges, improving government digital services, and mentoring junior developers in a collaborative Agile environment.

Key Responsibilities
Software Design & Development

  • Translate technical specifications into fully functional and tested applications.
  • Design and implement scalable, secure, and maintainable full-stack solutions.
  • Develop, test, and deploy data pipelines for extraction, transformation, and loading (ETL).
  • Build and integrate REST APIs connecting front-end UI with back-end services.
  • Conduct unit testing, debugging, and performance optimization.
  • Resolve technical issues and provide implementation and migration support.

Architecture & Documentation

  • Contribute to architectural discussions and solution design for cloud-native and microservices environments.
  • Prepare system design documentation, deployment guides, and release notes.
  • Ensure compliance with OPS, AODA, and ministry standards.

Collaboration & Mentorship

  • Collaborate with Product Managers, Business Analysts, and UX/UI Designers across the SDLC.
  • Lead by example, coach junior developers, and promote best engineering practices.
  • Participate in Agile ceremonies (stand-ups, sprint planning, retrospectives).

Required Technical Skills
Full-Stack Development

  • Front-End: Advanced proficiency in (hooks, Context API, functional components) and (SSR, routing).
  • Back-End: Strong experience in Python (FastAPI), , Java Spring Boot, and .NET Core / Web API (C#).
  • Languages & Frameworks: TypeScript, HTML5, CSS3/SCSS, JavaScript, responsive design, CSS-in-JS.
  • UI/UX: Strong understanding of modern UI architecture and testable component design.
  • API Development: Deep experience with RESTful APIs, OAuth2.0, and JWT authentication.

Cloud & DevOps

  • Proven expertise in Microsoft Azure, including:

  • Azure SQL Server (encryption, stored procedures, triggers, query optimization)

  • Cosmos DB and Azure Key Vault
  • Azure Kubernetes Service (AKS) and Docker
  • CI/CD pipelines using Azure DevOps
  • Configuration with YAML and ARM templates

  • Experience with Git/GitHub and version control best practices.

AI / Machine Learning

  • Hands-on experience with TensorFlow and PyTorch for model training and deployment.
  • Familiarity with OpenCV for image processing and computer vision.
  • Experience with data preparation, model tuning, and evaluation metrics (accuracy, precision, recall).

Architecture & Design

  • Knowledge of microservices, serverless, and cloud-based architectures.
  • Ability to design reusable, scalable, and high-performance components.
  • Strong understanding of web security, scalability, and performance optimization.

General & Interpersonal Skills

  • Excellent analytical, problem-solving, and decision-making skills.
  • Strong written and verbal communication abilities.
  • Ability to collaborate across technical and business teams.
  • Proven track record of meeting deadlines in Agile, fast-paced environments.
  • Understanding of AODA accessibility standards and documentation best practices.

Must-Have Qualifications

  • Advanced proficiency in and Python (FastAPI).
  • Experience with , Java Spring Boot, .NET Core, and C#.
  • Expertise in Azure DevOps, Docker, Kubernetes, and CI/CD.
  • Experience with TensorFlow, PyTorch, and image manipulation (OpenCV).
  • Proven experience with microservices, serverless architecture, and RESTful APIs.

Nice to Have

  • Experience with microservices architecture and serverless computing.
  • Knowledge of security best practices and performance optimization.
  • Exposure to DevOps practices and automated testing frameworks.


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