Senior Full Stack Software Designer (Java & React)

Senior Full Stack Software Designer (Java & React)

Position Description
We are seeking an Expert Full Stack Developer to design, build, and maintain both front end interfaces and back end systems, including APIs, microservices, databases, and cloud deployments. This role will be responsible for developing scalable, secure, and high performing enterprise applications using technologies such as Java, Spring Boot, React, Node.js, Python, and SQL.

The ideal candidate is a strong hands on engineer with deep full stack expertise, capable of translating business requirements into robust technical solutions. This individual will work closely with product, architecture, QA, DevOps, and business stakeholders to deliver modern digital solutions that are reliable, maintainable, and aligned with enterprise standards.

This role is hybrid and requires you to be at our downtown Toronto and/or Client office at a minimum 2 days per week subject to change at any time.

Your future duties and responsibilities
• Design, develop, test, deploy, and support full stack applications across front end and back end environments.
• Build responsive, accessible, and user friendly interfaces using React and modern web development practices.
• Develop and maintain back end services, APIs, and business logic using Java, Spring Boot, Node.js, and Python.
• Design and implement microservices based architectures for scalable and modular application development.
• Build and maintain secure RESTful APIs and service integrations.
• Design, optimize, and manage relational databases and queries using SQL.
• Contribute to cloud native application deployment and operational support in platforms such as AWS, Azure, or GCP.
• Collaborate with cross functional teams to define technical solutions aligned with business and architecture requirements.
• Ensure code quality through peer reviews, automated testing, and adherence to engineering best practices.
• Troubleshoot and resolve issues across the full stack, including UI, APIs, services, databases, and cloud environments.
• Support CI/CD pipelines, release processes, and deployment automation.
• Create and maintain technical documentation for applications, integrations, and support processes.
• Contribute to continuous improvement in engineering standards, design patterns, and team practices.

Required qualifications to be successful in this role
• Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
• 10+ years of experience in software development, including significant full stack development experience.
• Strong expertise in Java and Spring Boot for enterprise application development.
• Proven experience building scalable web applications using React.
• Hands on experience with back end technologies such as Node.js and Python.
• Strong experience designing and building APIs and microservices.
• Strong knowledge of SQL, relational databases, schema design, and query optimization.
• Experience deploying and supporting applications in cloud platforms such as AWS, Azure, or Google Cloud Platform.
• Experience with version control tools such as Git.
• Familiarity with CI/CD pipelines, automated testing, and DevOps practices.
• Solid understanding of application security, authentication, authorization, and secure coding principles.
• Strong analytical, problem solving, and communication skills.
• Ability to collaborate effectively with both technical and non technical stakeholders.

Preferred Qualifications
• Experience with TypeScript and modern front end architecture patterns.
• Familiarity with Docker, Kubernetes, and containerized deployment models.
• Experience with event driven architecture, messaging systems, or asynchronous processing.
• Knowledge of API gateways, observability, logging, and monitoring tools.
• Exposure to enterprise scale environments with high availability and security requirements.
• Experience working in Agile delivery teams.
• Background in banking, financial services, or other regulated industries.
• Experience mentoring developers and contributing to technical leadership.
Technical Skills
Front End
• React
• JavaScript
• TypeScript
• HTML
• CSS
• Responsive design
Back End
• Java
• Spring Boot
• Node.js
• Python
• REST APIs
• Microservices
Database
• SQL
• Relational databases
• Data modeling
• Schema design
• Query optimization
Cloud/DevOps
• AWS
• Azure
• GCP
• CI/CD
• Docker
• Kubernetes
• Deployment automation
Engineering Practices
• Testing
• Code reviews
• Debugging
• Performance tuning
• Secure coding
Core Competencies
• Full stack application design and delivery
• Strong back end and API development expertise
• Microservices and distributed systems thinking
• Front end usability and performance optimization
• Cloud native engineering and deployment
• Problem solving and analytical thinking
• Cross functional collaboration
• Strong ownership and accountability
• Quality, security, and maintainability focus
Success Measures
The successful candidate will:
• Deliver scalable, secure, and maintainable full stack applications.
• Build high quality APIs and microservices that support business growth.
• Improve engineering efficiency through reusable components and automation.
• Maintain strong standards for performance, reliability, and security.
• Partner effectively across teams to deliver business value.

Key Competencies
Software architecting: Use modelling, decision making, and validation techniques to design a system that fulfils stakeholder requirements.
Systems integration: Create and implement software that fits within its business and technology environment.
Requirements analysis: Understand and validate software requirements, focusing on quality attributes and other architectural drivers.
Delivery: Drive the realization and implementation of software and hardware systems.
Software technology knowledge:
Apply knowledge of development stacks, programming languages, design and integration patterns, and algorithms.
Certifications
• RCDA Practitioner
• Java Enterprise Edition
• Azure Solutions Architect
• Leading SAFe
• Software Architecture: SEI Certified Software Arch Professional
• IASA: Specialist Software

**CGI is providing a reasonable estimate of the pay range for this role. The determination of this range includes factors such as skill set level, geographic market, experience and training, and licenses and certifications. Compensation decisions depend on the facts and circumstances of each case. A reasonable estimate of the current range is $95,000–$145,000. This role is an existing vacancy.

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Together, as owners, let’s turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…

You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

At CGI, we value the strength that diversity brings and are committed to fostering a workplace where everyone belongs. We collaborate with our clients to build more inclusive communities and empower all CGI partners to thrive. As an equal-opportunity employer, being able to perform your best during the recruitment process is important to us. If you require an accommodation, please inform your recruiter.

That same commitment to fairness extends to how we use technology. To support our recruitment team, AI tools may be used to help assess applications though they never replace human judgement. All hiring decisions remain entirely in the hands of our recruitment professionals.

To learn more about accessibility at CGI, contact us via email . Please note that this email is strictly for accessibility requests and cannot be used for application status inquiries.

Come join our team—one of the largest IT and business consulting services firms in the world.