Java Full Stack Software Engineer Jobs in Ontario

Position Details:

· Permanent, Full-time.

· Salaried

· On-Site

· Schedule: Monday to Friday.

· Hours of Work: 8:30 a.m. to 5:00 p.m.

Location: Royal Windsor Dr. Mississauga

Summary:

We are seeking a skilled Full Stack Software Developer with 5+ years of professional experience to design, develop, and maintain robust web applications from concept to deployment. In this on-site role in Mississauga, you will build responsive frontend interfaces, maintain backend architectures, integrate APIs, and thrive in a continuous integration and deployment (CI/CD) environment.

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

· End-to-End Development: Build, deploy, and maintain full-stack web applications from architectural design through production release.

· API Design & Integration: Design, implement, and integrate robust RESTful APIs and modern RPC protocols (gRPC) for seamless communication.

· Code Quality & Standards: Write clean, efficient, maintainable, and well-documented code adhering to OOP and functional design best practices.

· Performance & Optimization: Troubleshoot, debug, and optimize applications for high responsiveness, low latency, scalability, and security.

· Testing & Automated CI/CD: Participate in peer code reviews, write unit tests, and expand automated testing frameworks within CI/CD pipelines.

· Cross-Functional Alignment: Collaborate closely with product managers, UI/UX designers, hardware teams, and business stakeholders to turn requirements into technical solutions.

· Documentation & Modernization: Maintain clear technical documentation and evaluate emerging technologies to continuously upgrade core systems.

Requirements / Qualifications:

Academic Training:

· Bachelor’s degree in computer science, Software Engineering, or a related field with a strong programming component (or equivalent practical experience).

Work & Technical Experience:

· 5+ years of full-time commercial software development experience, including hands-on full-stack (front-end and back-end) work.

· Front-End Stack: Angular, React, HTML5, SCSS/CSS3, JavaScript (ES6+), jQuery.

· Back-End Stack: Django (Python), Node.js, Go.

· Databases: PostgreSQL relational database design, query optimization, and management.

· APIs & Messaging: RESTful API design & integration, gRPC protocols.

· Cloud & Infrastructure: AWS services, Docker containerization, Git (Kubernetes is a plus).

· DevOps & Environments: Kubernetes, CI/CD pipelines, unit/automated testing.

· Systems & OS: Hands-on experience with both Windows and Linux operating environments.

· AI Developer Tools: Familiarity with AI-assisted development tools (Claude, VS Code, Cursor).

· Core Competencies: Deep knowledge of Object-Oriented Programming (OOP), functional design, and eagerness to learn evolving technologies.

Specific Competencies:

· Full-Stack Development: Demonstrated expertise in designing, developing, deploying, and maintaining scalable front-end and back-end web applications.

· API Design & Systems Integration: Proficiency in building and integrating RESTful APIs and gRPC services to enable secure and reliable system communication.

· Software Engineering Excellence: Strong knowledge of OOP, functional programming principles, software design patterns, and code quality best practices.

· Performance, Scalability & Security: Ability to troubleshoot, optimize, and secure applications to ensure high performance, reliability, and scalability.

· Testing & DevOps Practices: Experience with automated testing, code reviews, CI/CD pipelines, and modern software delivery methodologies.

· Cross-Functional Collaboration: Proven ability to work effectively with product, UX/UI, engineering, and business stakeholders to deliver technical solutions aligned with business needs.

· Technical Documentation & Continuous Improvement: Skilled in maintaining technical documentation and evaluating emerging technologies to drive system modernization and innovation.

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.

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.

Media Resources Inc. is one of the top-performing companies in the Signage Industry, and it is a place that offers big growth possibilities. Our customers range from the top billboard advertising companies in North America to leading commercial sign companies & AV industry leaders, to advertising agencies and building developers. For them, we design and manufacture world-class indoor & outdoor digital displays, large-format digital printing, 3D creations, and North American sign installation services.

We are in this position because of the great people that make up the Media Resources team from the team members who make our products and install signage from across the industry, to the people who service our customers directly, to the people who keep the “engine running”. Truly we believe great experiences start with great people.

We are looking for people to join our team. If you are someone who shares our values around having a passion for excellence, a belief in a result-driven work environment, a belief in a culture focused on innovation & continuous improvement, and a system built on teamwork & internal promotion then Media Resources might be a place for you!