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Senior Fullstack Developer (.Net / Javascript)

Resonaite

Pickering, Canada

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125 - 150 Posted: September 14th, 2025

Job Description

Overview

This range is provided by Resonaite. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

CA$110,000.00 / yr - CA$115,000.00 / yr

Responsibilities

  • Design, develop, and maintain enterprise-level applications using ASP.NET, C#, SQL Server, and web technologies.
  • Develop and implement RESTful APIs for system integration and data exchange.
  • Write clean, efficient, and well-documented code following industry best practices.
  • Apply dependency injection and design patterns to build scalable, maintainable solutions.
  • Optimize SQL Server databases, queries, and stored procedures for performance.
  • Architect, deploy, and maintain applications on cloud platforms (Azure, AWS, or GCP).
  • Troubleshoot, debug, and enhance existing software applications.
  • Collaborate with cross-functional teams to gather requirements and translate them into technical solutions.
  • Create clear process and technical documentation for applications, workflows, and system procedures.
  • Stay current with emerging technologies and recommend innovative improvements.
  • Ensure secure coding practices and compliance with IT security policies.

Requirements

  • Experience in RESTful API development and system integration, dependency injection and object-oriented programming principles.
  • Experience in Cloud Computing (Azure, AWS, or GCP).
  • Experience with DevOps practices, CI / CD pipelines, and version control (Git).
  • Familiarity with cybersecurity practices and secure coding standards.
  • Exposure to enterprise IT systems, ERP / CRM solutions, or legacy modernization.
  • Knowledge of modern front-end frameworks (e.g., React, Angular).
  • Solid understanding of systems operations, including monitoring, troubleshooting, and optimizing IT environments.

Seniority level

  • Mid-Senior level

Employment type

  • Full-time

Job function

  • Information Technology

Industries

  • Software Development and Construction

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