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Senior Net Developer Web And Mobile Application Security (Remote)

CGI
Full Timesenior
CAPosted March 21, 2026

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SQLElasticsearchJiraAgileMicroservicesAPI

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Job Description

Senior Net Developer Web And Mobile Application Security | CGI | Canada We are looking for an experienced .NET Developer to contribute to the development, evolution, and security of our critical web and mobile applications. You will actively participate in the design and optimization of modern application solutions based on the Microsoft .NET ecosystem, while integrating best practices in application security, performance, observability, and software architecture. You will work in a stimulating technological environment where code quality, system robustness, and continuous improvement are top priorities. Your future duties and responsibilitiesDesign, develop, and maintain web applications and APIs in .NETParticipate in the evolution and integration of mobile applications (iOS and Android) with backend servicesDesign robust, high-performance, and secure application solutionsParticipate in improving application architecture and modernizing existing systemsOptimize the performance of applications and SQL Server databasesIntegrate and utilize monitoring, logging, and observability tools (Elastic Stack or equivalent)Implement secure development best practicesParticipate in code reviews and the improvement of development standardsCollaborate with architecture, infrastructure, security, and development teamsContribute to technical documentation and knowledge sharing Required qualifications to be successful in this roleDegree in Computer Science or equivalentMinimum of 5 years of experience in software developmentExcellent command of the .NET / C# ecosystemExperience in developing modern web applicationsGood understanding of API and microservices architecturesExperience in Agile environmentsStrong analytical and problem-solving skillsAutonomy, rigor, and a strong sense of responsibilityAbility to work effectively in a teamFluent in spoken and written French Assets: Experience with mobile applications (iOS / Android)Knowledge of payroll, HR, or management systems Essential Technical Specializations: Development C#, .NET Framework / .NET Core / .NET 8+ASP.NET MVC, Web API, Microservices Architecture Web and Mobile Web ApplicationsIntegration with iOS and Android applicationsREST API Data SQL Server, Query Optimization, Stored Procedures, Performance Analysis Security Application Security Application security best practices API securityAccess management and authentication (OAuth2, JWT – an asset) Observability and monitoring Application loggingElastic Stack (Elasticsearch, Kibana, Logstash) or similar toolsMonitoring and APM tools Tools Visual Studio / GitGitHub / Jira / ConfluenceWindows Server / IIS General skills: Excellent autonomyTechnical and functional analysis skillsTechnological curiosityContinuous improvement mindsetAbility to design robust and scalable solutionsStrong collaborative work skills 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 $60 000–$115 000. This role is an existing vacancy. 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. 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.

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