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 $60 –$ . This role is an existing vacancy.
#LI-AM1
Bilingualism (French and English) is required for this position due to the nature of the role requiring interaction with national and global clients.
Senior.NET Developer - Web and Mobile Application Security • Montreal, Canada
Advance your career as a Firmware Developer at dormakaba in Montreal, QC.Design production firmware critical to battery-powered security and access control systems, focusing on low-power design pri... Show more
Be among the first 25 applicants.Get AI-powered advice on this job and more exclusive features.This range is provided by Insight Global.Your actual pay will be based on your skills and experience —... Show more
Sr US IT Recruiter @ Lorven Technologies Inc | MBA, US and Canada Staffing Services.We are currently looking for a strong.Remote (Canada/ Mexico PST Time Zone).Please find the detail description be... Show more
A leading translation management company in Montreal is seeking an Intermediate/Senior.You'll work with a talented team on innovative projects, contributing to the development of the FlowFit soluti... Show more
You’ll have to look long and hard to find a digital development gig like this in Montreal.A Canadian multinational company that is growing at an unprecedented rate and that is actively throwing its... Show more
Mobile App and Web Developer – Quiz Platform (Freelance Contract) role at.Develop a cross-platform quiz application for young learners with a mobile app and matching website.The solution will host ... Show more
Be among the first 25 applicants.Get AI-powered advice on this job and more exclusive features.Direct message the job poster from Quarry Consulting.I’ve included the position requirements below.If ... Show more
Get AI-powered advice on this job and more exclusive features.This range is provided by TEEMA.Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.Di... Show more
Direct message the job poster from Accion Labs.Remote - Immediate interviews for Senior.Net Developer - Long term contract.Entity Framework experiences for CRUD (CQRS), Design Pattern Implementatio... Show more
We’d like you to join our team as a remote employee developing our software components running in a cloud environment.Olivine has a development environment utilizing Windows,.You keep abreast of ch... Show more
A technology consulting firm located in Ottawa, Ontario, is seeking a Senior Application/Software Architect with strong expertise in.NET to design and implement enterprise applications.Candidates s... Show more
A cutting-edge tech company in Canada is seeking a skilled Software Engineer specializing in security and privacy.The role involves improving security properties by implementing features, auditing ... Show more
Embrace Software, headquartered in Tampa, USA, is one of the fastest-growing software acquirers in the world.We focus on building niche software businesses that deliver mission-critical solutions a... Show more
A leading technology provider is seeking a.NET Developer in Montreal, QC (Hybrid) for a long-term role.The successful candidate will have strong hands-on experience with C#,.NET Core, and REST APIs... Show more
NET Developer for a 6 months contract with the intention of converting to full time permanent.Role is hybrid with 4 days a week on site in Downtown Montreal.The candidates must be able to take func... Show more
Job Title: React Native Web & Mobile Developer.Seeking a Lead React Native Developer to architect, build, and deliver mobile (iOS/Android) and web applications for healthcare patient- and clinician... Show more
A job placement service is seeking an experienced.NET Developer for a fully remote, long-term contract.The role involves contributing to the Student Financial Services (SFS) solution, focusing on.I... Show more
Introducing Our Job Placement Service at ImmigrationDoor.At ImmigrationDoor, we have expanded our services to include job placement, assisting our clients in not just moving to Canada but also in s... Show more
NET (C#) Developer - IoT (Zigbee, BLE).NET (C#) Developer - IoT (Zigbee, BLE).Were Hiring for Our Client: Senior.NET (C#) Developer IoT (Zigbee, BLE).Smart Home Technology & Security Systems.Were h... Show more
Shape the future of security at Confluence in Montreal as a Senior Security Engineer.Focus on vulnerability remediation and improve security practices across IT infrastructure.In this pivotal role,... Show more
