Senior Software Developer (Mississauga,ON)

Media Resources Inc.; Mississauga; Hybrid; CAD 110,000 - 140,000; Full time

Job summary

Media Resources Inc. is seeking a Senior Software Developer (Full Stack) with 7+ years of commercial software engineering experience for an on-site role in Mississauga.

You will lead the modernization of core diagnostic platforms, building scalable web apps, microservices, and cloud-ready components across Windows and Linux environments. The role emphasizes architecture modernization, performance, security, and collaboration with product and hardware teams.

Qualifications

• This role requires 7+ years of software development experience.
• Bachelor’s degree in Computer Science, Software Engineering, or equivalent.
• Experience with Windows and Linux environments; embedded systems background is a plus.
• Proven ability to design, re-architect, and modernize complex platforms.
• Familiarity with AI-assisted development tools and modern tooling.

Responsibilities

• Lead modernization and architecture of core diagnostic platforms.
• Develop robust web applications and microservices using Node.js, C#, and C++.
• Ensure performance, security, and reliability of systems.
• Collaborate with product, hardware engineers, and stakeholders.
• Drive automated testing, code reviews, and CI/CD improvements.
• Utilize AI tools to enhance engineering efficiency and code quality.
• Create and maintain system architecture docs and APIs.

Skills

Full-stack development

7+ years experience

Node.js

C#

C++

Architecture modernization

CI/CD

Windows & Linux

AI-assisted development tools

Cross-functional leadership

Education

Bachelor’s degree in Computer Science or Software Engineering

Tools

MySQL

AWS DynamoDB

RESTful APIs

gRPC

MQTT

VS Code

Job description

Summary:

We are seeking an experienced Senior Software Developer (Full Stack) with 7+ years of commercial software engineering experience. In this key on-site role in Mississauga, you will lead the modernization and architecture of our core diagnostic platforms, developing robust web applications, hardware integrations, and cloud services.

The primary responsibilities and duties include but are not limited to:

• Diagnostics Modernization: Re-build, architect, and enhance core hardware diagnostic and monitoring platforms for optimal performance and reliability.
• Full-Stack Development: Design, code, and maintain scalable web applications and microservices using Node.js, C#, C++, and modern frontend frameworks (SPA).
• Performance & Security: Troubleshoot, debug, and optimize applications for speed, responsiveness, low latency, and security compliance.
• Cross-Functional Collaboration: Partner with product management, hardware engineers, and business stakeholders to translate technical requirements into scalable solutions.
• Testing & CI/CD: Drive automated unit testing, code reviews, and CI/CD deployment pipeline improvements across Windows and Linux environments.
• AI & Modern Tooling: Leverage modern AI development tools (e.g., Claude, VS Code AI tools) to streamline engineering efficiency and code quality.
• Technical Documentation: Maintain clean system architecture designs, API specifications, and developer documentation.

Requirements / Qualifications:

Academic Training:

• Bachelor’s degree in Computer Science, Software Engineering, or equivalent practical industry experience.

Work & Technical Experience:

• Experience: 7+ years of software development experience.
• Databases: MySQL, AWS DynamoDB, and general NoSQL database architectures.
• APIs & Messaging: RESTful APIs (experience with gRPC or MQTT protocols is a plus).
• Systems & OS: Hands-on experience with both Windows and Linux operating environments; embedded systems background.
• AI Developer Tools: Familiarity with AI-assisted development tools (Claude, VS Code, Cursor).
• Software Architecture & Platform Modernization: Proven ability to design, re-architect, and modernize complex software platforms, with a focus on performance, reliability, and maintainability.
• Full-Stack & Systems Development: Advanced expertise in developing scalable web applications, microservices, and system-level solutions using Node.js, C#, C++, and modern SPA frameworks.
• Performance Optimization & Secure Development: Strong capability in troubleshooting, debugging, performance tuning, and implementing secure, compliant software solutions.
• Quality Engineering & DevOps: Experience leading automated testing, code review practices, and CI/CD pipeline optimization across Windows and Linux environments.
• Cross-Functional Technical Leadership: Ability to collaborate with product managers, hardware engineers, and business stakeholders to translate requirements into scalable technical solutions.
• AI-Enabled Software Development: Proficiency leveraging AI-powered development tools to improve engineering productivity, code quality, and development efficiency.
• Technical Documentation & Knowledge Sharing: Skilled in producing and maintaining system architecture documentation, API specifications, technical standards, and developer guidance.

Job Posting Requirements:

This posting is for an open vacancy currently available within Media Resources Inc.

Artificial Intelligence (AI) is not utilized in the recruitment process.

MRI does not require Canadian Experience.

Wethank all applicants and advise that only those selected for an interview will be contacted and informed of the next steps within 45 days of the interview. MRI will retain a copy of the job posting and associated application form for 3 years.