We are seeking an experienced Senior Software Developer (Full Stack) with 7+ years of commercial software engineering experience. In this key on-site role, you will lead the modernization and architecture of our core diagnostic platforms, developing robust web applications, hardware integrations and cloud services. Responsibilities and duties 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 up-to-date 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 and qualifications Academic Training
- Bachelor’s degree in Computer Science, Software Engineering, or equivalent practical industry experience. Work & Technical Experience
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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. 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. We thank 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. Engineered to look better, longer. From engineering and manufacturing through installation and lifetime support, Media Resources delivers LED display systems with lasting visual quality, dependable performance and lower lifetime operating costs.

📌 Senior Software Developer (Mississauga)
🏢 Media Resources
📍 Mississauga