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Senior .NET Developer - Web and Mobile Application Security

$60k - $115k per year
Développeur(euse) .NET Senior Sécurité Applicative Web et Mobile

Description de poste
Développeur(euse) .NET Senior Sécurité Applicative Web et Mobile

Job Description
Nous recherchons un Développeur .NET expérimenté pour contribuer au développement, à l'évolution et à la sécurisation de nos applications Web et Mobile critiques.
Vous participerez activement à la conception et à l'optimisation de solutions applicatives modernes reposant sur l'écosystème Microsoft .NET, tout en intégrant les meilleures pratiques en matière de sécurité applicative, performance, observabilité et architecture logicielle.
Vous évoluerez dans un environnement technologique stimulant où la qualité du code, la robustesse des systèmes et l'amélioration continue sont au cœur des priorités.

Your future duties and responsibilities
-Concevoir, développer et maintenir des applications Web et des API en .NET
-Participer à l'évolution et à l'intégration d'applications mobiles (iOS et Android) avec les services backend
-Concevoir des solutions applicatives robustes, performantes et sécurisées
-Participer à l'amélioration de l'architecture des applications et à la modernisation des systèmes existants
-Optimiser la performance des applications et des bases de données SQL Server
-Intégrer et exploiter des outils de monitoring, logging et observabilité (Elastic Stack ou équivalent)
-Mettre en œuvre les bonnes pratiques de développement sécurisé
-Participer aux revues de code et à l'amélioration des standards de développement
-Collaborer avec les équipes architecture, infrastructure, sécurité et développement
-Contribuer à la documentation technique et au partage des connaissances

Required qualifications to be successful in this role
-Diplôme en informatique ou formation équivalente
-Minimum de 5 ans d'expérience en développement logiciel
-Excellente maîtrise de l'écosystème .NET / C#
-Expérience dans le développement d'applications Web modernes
-Bonne compréhension des architectures API et microservices
-Expérience dans des environnements Agile
-Forte capacité d'analyse et de résolution de problèmes
-Autonomie, rigueur et sens des responsabilités
-Capacité à travailler efficacement en équipe
-Français parlé et écrit
Atouts :
-Expérience avec des applications mobiles (iOS / Android)
-Connaissance du domaine paie, RH ou systèmes de gestion
Spécialisations techniques essentielles :
Développement
- C#, .NET Framework / .NET Core / .NET 8+
-ASP.NET MVC, Web API , Architecture micro services
Web et Mobile
-Applications Web
-Intégration avec applications iOS et Android
-API REST
Données
-SQL Server, Optimisation de requêtes, Procédures stockées, Analyse de performance
Sécurité applicative
-Bonnes pratiques de sécurité applicative
-Sécurisation des API
- Gestion des accès et authentification (OAuth2, JWT – un atout)
Observabilité et supervision
-Logging applicatif
- Elastic Stack (Elasticsearch, Kibana, Logstash) ou outils similaires
-Outils de monitoring et APM
Outils
-Visual Studio / Git
-GitHub / Jira / Confluence
-Windows Server / IIS
Compétences générales :
-Excellente autonomie
-Capacité d'analyse technique et fonctionnelle
- Curiosité technologique
-Esprit d'amélioration continue
- Capacité à concevoir des solutions robustes et évolutives
-Bon sens du travail collaboratif

CGI offre une estimation raisonnable de la fourchette salariale pour ce poste. Le calcul de cette fourchette dépend de divers facteurs, notamment le niveau de compétence, le marché géographique, l’expérience, la formation ainsi que les licences et certifications professionnelles. Les décisions en matière de rémunération dépendent des particularités de chaque cas. Une estimation raisonnable de cette fourchette salariale se situe entre 60,000$-115,000$ ce poste est vacant.

#LI-AM1

Fonctions et responsabilités

Qualités requises pour réussir dans ce rôle

Ensemble, en tant que propriétaires, mettons notre savoir-faire à l’œuvre.

La vie chez CGI est ancrée dans l’actionnariat, le travail d’équipe, le respect et un sentiment d’appartenance. Chez nous, vous pourrez exploiter votre plein potentiel parce que…

Nous vous invitons à devenir propriétaire dès le jour 1 alors que nous travaillons ensemble à faire de notre rêve une réalité. C’est pourquoi nous nous désignons comme associés de CGI, plutôt que comme employés. Nous tirons profit des retombées de notre succès collectif et contribuons activement à l’orientation et à la stratégie de notre entreprise.

Votre travail crée de la valeur. Vous élaborerez des solutions novatrices et développerez des relations durables avec vos collègues et clients, tout en ayant accès à des capacités mondiales pour concrétiser vos idées, saisir de nouvelles opportunités, et bénéficier d’une expertise sectorielle et technologique de pointe.

Vous ferez évoluer votre carrière en vous joignant à une entreprise bâtie pour croître et durer. Vous serez soutenus par des leaders qui ont votre santé et bien-être à cœur et qui vous permettront de saisir des occasions afin de parfaire vos compétences et élargir les horizons.

Chez CGI, nous valorisons la richesse que la diversité apporte et nous nous engageons à favoriser un environnement de travail où chacun s’épanouit. Nous collaborons avec nos clients pour bâtir des communautés plus inclusives et permettre à tous les associés de CGI de réussir. En tant qu’employeur prônant l’égalité des chances, il est important pour nous que vous puissiez donner le meilleur de vous-même durant le processus de recrutement. Si vous avez besoin d’un accommodement particulier, veuillez en informer votre recruteur.

Pour en savoir plus sur l'accessibilité chez CGI, contactez-nous par courriel . Veuillez noter que ce courriel est strictement réservé aux demandes d'accessibilité et ne peut être utilisé pour vérifier l'état d’une candidature.

Joignez-vous à nous, l’une des plus importantes entreprises de conseil en technologie de l’information (TI) et en management au monde.

Senior .NET Developer - Web and Mobile Application Security

Position Description
Senior .NET Developer - Web and Mobile Application Security

Position Description
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 responsibilities
- Design, develop, and maintain web applications and APIs in .NET
- Participate in the evolution and integration of mobile applications (iOS and Android) with backend services
- Design robust, high-performance, and secure application solutions
- Participate in improving application architecture and modernizing existing systems
- Optimize the performance of applications and SQL Server databases
- Integrate and utilize monitoring, logging, and observability tools (Elastic Stack or equivalent)
- Implement secure development best practices
- Participate in code reviews and the improvement of development standards
- Collaborate with architecture, infrastructure, security, and development teams
- Contribute to technical documentation and knowledge sharing

Required qualifications to be successful in this role
- Degree in Computer Science or equivalent
- Minimum of 5 years of experience in software development
- Excellent command of the .NET / C# ecosystem
- Experience in developing modern web applications
- Good understanding of API and microservices architectures
- Experience in Agile environments
- Strong analytical and problem-solving skills
- Autonomy, rigor, and a strong sense of responsibility
- Ability to work effectively in a team
- Fluent 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 Applications
- Integration with iOS and Android applications
- REST API

Data
- SQL Server, Query Optimization, Stored Procedures, Performance Analysis

Security Application Security

- Application security best practices

- API security
- Access management and authentication (OAuth2, JWT – an asset)

Observability and monitoring
- Application logging
- Elastic Stack (Elasticsearch, Kibana, Logstash) or similar tools
- Monitoring and APM tools

Tools
- Visual Studio / Git
- GitHub / Jira / Confluence
- Windows Server / IIS
General skills:

- Excellent autonomy
- Technical and functional analysis skills
- Technological curiosity
- Continuous improvement mindset
- Ability to design robust and scalable solutions
- Strong 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.

#LI-AM1

Your future duties and responsibilities

Required qualifications to be successful in this role

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.

Vacancy posted 3 days ago
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