Senior Full Stack.NET Developer

Position Description:

Are you motivated by the opportunity to delight your clients by providing innovative solutions to complex technical challenges? These are exciting times for CGI, and we are looking for talented professionals who are passionate about technology, continuous improvement, and delivering business value through modern software engineering practices.
If you thrive in collaborative environments where you can influence technical direction, contribute to architecture decisions, and deliver high-quality enterprise solutions, we invite you to join our team.
This is an excellent opportunity to join our CGI Edmonton team, providing leading information technology services to our clients. We are seeking experienced Senior Full Stack Developers to work within large-scale enterprise environments, delivering modern web applications, APIs, and digital solutions.

About the Role
The delivery team relies on the Senior Full Stack Developers to design, develop, enhance, and support enterprise applications utilizing expertise across the full software development lifecycle. The successful candidate will leverage modern Microsoft technologies, front-end frameworks, and DevOps practices to deliver scalable, secure, and maintainable solutions.
This role requires hands-on development experience across both front-end and back-end technologies, strong API and database development skills, and the ability to contribute to architectural decisions within Agile delivery teams.

Your future duties and responsibilities:

• Design, develop, and maintain enterprise applications using C#, .NET, ASP.NET Core, and ASP.NET Core Web API.
• Build and support secure, privacy-focused systems that handle sensitive data while adhering to security, compliance, and governance requirements.
• Design, develop, and maintain scalable REST APIs, including API contract design, DTO modeling, serialization, and versioning strategies.
• Create and maintain API documentation using Swagger/OpenAPI standards.
• Develop and optimize data access layers using Entity Framework Core, SQL Server, and advanced T-SQL programming techniques.
• Develop modern, responsive user interfaces using React or Angular, TypeScript, HTML, and CSS.
• Troubleshoot and resolve complex application, API, integration, database, and performance issues across the full technology stack.
• Drive technical excellence through code quality, peer reviews, automated testing, performance optimization, and continuous improvement initiatives.
• Develop and execute automated testing strategies, including unit testing, integration testing, and regression automation.
• Manage source code, pull requests, branching strategies, and collaborative development workflows using GitHub.
• Contribute to and support CI/CD integration pipelines, automated deployments, release management, and DevOps practices.
• Lead greenfield development initiatives, helping establish modern engineering practices, reusable frameworks, and development standards.
• Mentor developers and contribute to technical leadership through knowledge sharing, design reviews, and architectural discussions.
• Collaborate closely with product owners, UX designers, architects, business analysts, and stakeholders to translate business requirements into technical solutions.
• Participate actively in Agile delivery processes, including sprint planning, backlog refinement, estimation, daily stand-ups, reviews, and retrospectives.
• Consistently deliver measurable business value by improving application performance, reducing technical debt, enhancing maintainability, and accelerating delivery timelines.

Required qualifications to be successful in this role:

• 7+ years of hands-on experience developing enterprise applications using C#, .NET, ASP.NET Core, and ASP.NET Core Web API.
• Experience with microservices and SOA service-oriented architecture
• Skilled in presenting technical topics to business stakeholders and in translating business rules to programmatic logic
• Possess intellectual humility and pro-social EQ skills conducive to a high-collaboration team environment
• Strong experience designing, developing, and supporting REST APIs and service-oriented architectures.
• Strong experience with SQL Server, database design, performance tuning, query optimization, and advanced T-SQL development.
• Experience developing front-end applications using React or Angular, including TypeScript, HTML, and CSS.
• Experience developing and maintaining automated tests, including unit testing, integration testing, and regression automation.
• Strong troubleshooting and diagnostic skills across applications, APIs, integrations, databases, and distributed systems.
• Experience implementing and supporting CI/CD integration pipelines and modern DevOps practices.
• Experience working within Agile software delivery environments using Scrum, Kanban, or similar methodologies.
• Ability to lead end-to-end design, development, testing, deployment, and support of complex software solutions.
• Strong communication and collaboration skills with both technical and non-technical stakeholders.
• Experience working with teams that utilize UX Design, Service Design, Design Thinking, or Human-Centered Design methodologies.


Preferred Qualifications
• Experience with Microsoft Azure and/or AWS cloud services.
• Experience with DevSecOps practices, infrastructure as code, and cloud-native application development.
• Experience with containerization technologies such as Docker and Kubernetes.
• Experience supporting enterprise-scale digital transformation or modernization initiatives.
• Experience mentoring developers and contributing to technical leadership and architecture discussions.

Educational Qualifications
• Degree or Diploma in Computer Science, Software Engineering or a related field
• Relevant certifications in Microsoft Azure, AWS, .NET Development, DevOps, or Agile methodologies are considered an asset.

CGI is providing a reasonable estimate of the pay range for this role. The determination of this range includes various factors including but not limited to skill set level, geographic market, experience and training, and licenses and certifications. Compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range is $70, - $,.

#LI-AP1

Skills:

• .NET