Available to hire
I am Sylvain Breton, a Web and Full Stack Developer with expertise in .NET Core, RESTful APIs, and modern automation. I design robust, scalable solutions by leveraging Docker, Azure DevOps, and secure authentication (Auth0, JWT) to deliver reliable software. I thrive in agile environments and enjoy solving complex problems with clean, maintainable code.
I independently designed and delivered secure microservices for Ubee, integrated CI/CD pipelines with Azure DevOps and GitHub Actions, and built test suites using xUnit, Moq, and FluentAssertions. I follow SOLID, SRP, and DRY principles, document automation processes, and collaborate effectively to improve quality, performance, and reliability across projects.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Language
English
Advanced
French
Advanced
Work Experience
Developer Analyst – .NET Microservice at Ubee
January 1, 2025 - June 11, 2024Developed a microservice to automate the import and synchronization of listings from files. Automated the insertion, deletion, and validation of listings to ensure data quality and integrity. Integrated RabbitMQ for asynchronous messaging with a queue of workers to ensure reliable and lossless data management. Implemented Docker Compose locally and CI/CD pipelines on Azure DevOps for deployment. Optimized scalability by anticipating multiple consumers based on workload.
.NET Web Developer at B&By
March 1, 2023 - January 1, 2025Developed backend REST API using .NET Core, EF Core 8, and Azure DevOps with MySQL models using code-first. Created CI/CD pipelines with GitHub Actions and Microsoft Azure (including Kubernetes, Jenkins, Terraform). Implemented security measures including role management with Identity Server, JWT, and SSL certificates. Designed and developed interactive frontend components and web services using React, Axios, TypeScript, and Sass, optimized builds with Webpack and Docker.
.NET Web Developer at Amilia
November 1, 2021 - February 28, 2022Developed and maintained web applications handling Jira tickets. Frontend development with React and SASS and participated in Agile meetings. Backend development involved .NET C#, NHibernate, and SSMS with application of TDD for testing and quality assurance. Collaborated with senior developers to design and implement new features while ensuring application security.
.NET Web Developer at Devolutions, Marketing Team
October 1, 2021 - March 1, 2023Developed dynamic web applications including a serverless static site using Node.js, 11ty, Nunjucks, Sass, and Strapi CMS. Designed backend systems with .NET Core, C#, Entity Framework 6, and MSSQL focusing on data workflow and performance. Integrated Salesforce SaaS CRM with secure API communications (OAuth 2.0). Created responsive UIs with Angular 12, TypeScript, and Rxjs. Collaborated with senior developers to implement advanced features.
PHP Front-End Web Developer at Opale Net
May 1, 2019 - August 31, 2019Developed and maintained custom WordPress sites using BeaverBuilder. Created and customized PHP functions, plugins, and themes adhering to best practices. Optimized site performance using Google Page Speed Insights and WP Rocket. Enhanced SEO with structured data, optimized images, and caching. Ensured compliance with WCAG and W3C standards.
PHP Full-Stack Web Developer at Mac Media Agency
September 1, 2018 - April 30, 2019Developed and maintained WordPress websites using BeaverBuilder, managing frontend and backend configurations. Created custom PHP functions and plugins while optimizing performance via speed reports and caching. Implemented SEO best practices, optimized images, and improved site structure for increased organic traffic. Ensured compliance with accessibility and web standards.
eCommerce Advocate, QA Analyst at BMTC Group
August 1, 2015 - August 31, 2018Served as eCommerce advisor and interim digital project manager, writer, and QA analyst. Increased online sales and represented the company. Managed bilingual customer communications and moderated social media exchanges. Oversaw financial reports and stock statuses. Used DevOps tools including Atlassian Confluence and Jira. Contributed to IBM WebSphere migration.
IT Analyst at IBM
July 1, 2009 - July 31, 2011Managed IBM client accounts specializing in all OS, cloud computing, and security for U.S. banks. Provided IT support and content management for corporate operations. Offered expertise in virtualization and GIS solutions. Troubleshot across platforms and network configurations. Supported client servers and services.
IT Analyst at Videotron
January 1, 2009 - January 31, 2010Provided technical support for Cable, Internet, and IP communications services. Delivered security solutions for users and managed enterprise accounts. Resolved issues on Windows and Mac OS platforms relating to configured security networks.
Instructor at Collège Beaubois
September 1, 2006 - February 28, 2007Taught computer science to journalism students covering HTML, CSS, and JavaScript basics. Prepared documentation for short films including editing and mastering. Developed a new conception final exam approved by a PhD teacher.
Developer Analyst – .NET Microservice at Ubee
January 1, 2025 - June 6, 2024Developed a microservice to automatically import and synchronize listings from files. Automated insertion, deletion, and validation of listings to ensure data quality and integrity. Integrated RabbitMQ to publish and consume asynchronous messages, implementing a queue of workers to publish new listings, enabling reliable and lossless data management. Implemented Docker Compose locally and CI/CD pipelines on Azure DevOps for deployment. Optimized scalability by anticipating the possibility of adding multiple consumers based on workload.
.NET Web Developer at B&By
March 1, 2023 - January 1, 2025Developed backend API REST using .NET Core, EF Core 8, and Azure DevOps, MySQL models using code-first. Created a CI/CD pipeline with GitHub Actions and Microsoft Azure (DevOps: Kubernetes, Jenkins, Terraform). Implemented security measures, role management with Identity Server, JWT, and SSL certificates. Designed and developed interactive frontend components and web service with React, Axios, TypeScript, and Sass, with optimized builds on Webpack and Docker.
.NET Web Developer at Amilia
November 1, 2021 - February 1, 2022Development and maintenance of web applications (Jira tickets). Frontend development using React and SASS, attending periodic Agile meetings. Involved in backend development using .NET C#, NHibernate, and SSMS, applying TDD for comprehensive testing and quality assurance. Collaborated with senior developers to design and implement new features, ensuring application security through good design practices.
.NET Web Developer at Devolutions, Marketing Team
October 1, 2021 - March 1, 2023Developed dynamic web applications, including a serverless static site using Node.js, 11ty, Nunjucks, Sass, and Strapi CMS, ensuring scalability and flexibility. Designed backend systems with .NET Core, C#, Entity Framework 6, and MSSQL, optimizing data workflows and performance. Integrated Salesforce SaaS CRM, securing API communications with OAuth 2.0 for robust data protection. Built responsive UIs using Angular 12, TypeScript, and Rxjs. Collaborated with senior developers to design and implement advanced features.
PHP Front-End Web Developer at Opale Net
May 1, 2019 - August 1, 2019Developed and maintained custom WordPress sites using BeaverBuilder, implementing frontend designs and backend configurations for optimal performance. Created and customized PHP functions, plugins, and themes, optimizing site performance through speed analysis tools like Google Page Speed Insights and WP Rocket. Enhanced SEO through structured data implementation, optimized image assets, and caching strategies, significantly boosting organic traffic and ensuring compliance with high web standards (WCAG, W3C).
PHP Full-Stack Web Developer at Mac Media Agency
September 1, 2018 - April 1, 2019Developed and maintained WordPress websites using BeaverBuilder, managing both frontend and backend configurations. Created custom PHP functions, plugins, and themes, optimizing performance through speed reports and caching strategies. Increased organic traffic by implementing SEO best practices, optimizing images, and improving site structure. Ensured web standards compliance (WCAG, W3C) for responsive, accessible, and high-performance websites.
eCommerce Advocate, QA Analyst at BMTC Group
August 1, 2015 - August 1, 2018Acted as an eCommerce advisor and interim digital project manager, writer, and QA analyst. Contributed to increasing online sales and represented the company. Managed bilingual online customer communications. Moderated social media exchanges and managed financial reports and stock statuses. Used DevOps tools like Atlassian Confluence and Jira. Contributed to an IBM WebSphere migration.
IT Analyst at IBM
July 1, 2009 - July 1, 2011Managed IBM client accounts specializing in all OS, cloud computing, and security for U.S. banks. Provided IT support and content management for corporate operations. Offered virtualization expertise and geographic information system (GIS) solutions. Troubleshooted across various platforms and network configurations. Supported client servers and services.
IT Analyst at Videotron
January 1, 2009 - January 1, 2010Provided technical support for Cable, Internet, and IP communications services. Delivered security solutions for users and managed enterprise accounts. Resolved issues on Windows and Mac OS platforms to configure security networks.
Instructor at Collège Beaubois
September 1, 2006 - February 1, 2007Taught computer science to journalism students, with HTML, CSS, JavaScript basics. Prepared documentation for short films, including editing, scene cutting, and mastering. Concluded the session with a new conception final exam approved with a PhD Teacher.
Full-Stack Developer at Ubee
January 1, 2025 - October 30, 2025Developed a microservice to automatically import and synchronize listings from Excel files, with automated insertion, deletion, and validation to ensure data quality. Integrated RabbitMQ to publish and consume asynchronous messages, enabling a reliable, scalable queue of workers for new listings. Implemented Docker Compose locally and CI/CD pipelines on Azure DevOps. Planned for multi-consumer scalability, and authored unit and integration tests (xUnit, Moq, FluentAssertions) focused on listing validation, token injection, and RabbitMQ consumption, all integrated into the Azure DevOps pipeline.
Full-Stack Developer at B&By
January 1, 2025 - January 1, 2025Developed a REST API backend using .NET Core, EF Core 8, and MySQL (code-first). Built CI/CD pipelines with GitHub Actions and Azure (Kubernetes, Jenkins, Terraform). Implemented security with Identity Server, JWT, and SSL. Designed and developed interactive frontend components with React, Axios, TypeScript, and Sass, with optimized Webpack/Docker builds.
Full-Stack Developer at Devolutions
March 1, 2023 - March 1, 2023Developed and maintained web applications (Jira tickets). Frontend with React and Sass; backend with .NET Core, NHibernate, and SSMS. Practiced TDD for comprehensive testing and quality assurance. Collaborated with senior developers to design and implement features, ensuring security through solid design practices.
PHP Web Developer at Opale Net
August 1, 2019 - August 1, 2019Developed and maintained custom WordPress sites on Linux, created PHP functions, plugins, and themes, and optimized performance. Enhanced SEO with structured data, image optimization, and caching strategies to boost organic traffic while ensuring WCAG/W3C compliance.
PHP Web Developer at Mac Media Agency
April 1, 2019 - April 1, 2019Developed and maintained WordPress sites; implemented frontend and backend configurations. Created custom PHP functions, plugins, and themes, and optimized performance and SEO to improve site traffic and accessibility.
eCommerce Advocate, QA Analyst at BMTC Group
August 1, 2018 - August 1, 2018Project management across multiple web projects; acted as eCommerce advisor and interim digital project manager, writer, and QA analyst. Managed bilingual online communications, moderated social media, and supported IBM WebSphere migration using Atlassian Confluence and Jira.
IT Analyst at IBM
July 1, 2011 - July 1, 2011Managed IBM client accounts focusing on OS, cloud, and security for U.S. banks. Provided IT support, virtualization, GIS solutions, and troubleshooting across multiple platforms and networks. Supported client servers and services.
IT Analyst at Videotron
January 1, 2010 - January 1, 2010Provided technical support for Cable, Internet, and IP services. Delivered security solutions for users and managed enterprise accounts. Resolved issues on Windows and Mac OS, ensuring secure networks.
Instructor at Collège Beaubois
February 1, 2007 - February 1, 2007Taught computer science basics (HTML, CSS, JavaScript) to journalism students. Prepared documentation for short films, edited and mastered scenes, and contributed to final exams.
Education
Master at Université du Québec à Montréal
January 1, 2015 - December 31, 2015Bachelor at Université du Québec à Montréal
January 1, 1998 - December 31, 1998DEC at Collège Montmorency
January 1, 1994 - December 31, 1994Master at Université du Québec à Montréal
January 1, 2015 - December 31, 2015Bachelor at Université du Québec à Montréal
January 1, 1998 - December 31, 1998DEC at Collège Montmorency
January 1, 1994 - December 31, 1994Master in Art History at Université du Québec à Montréal
January 1, 2015 - January 1, 2015Bachelor in Visual Arts at Université du Québec à Montréal
January 1, 1998 - January 1, 1998DEC in Visual Arts at Collège Montmorency
January 1, 1994 - January 1, 1994AEC in Web Technology Programming at Cégep Gérald-Godín
January 1, 2021 - January 1, 2021AEC in 3D Animation at Ubisoft Campus with Cégep de Matane in Montreal
January 1, 2007 - January 1, 2007PC Hardware Specialist Certification at DeVry Institute of Information Technology
January 1, 2000 - January 1, 2000Macromedia Flash, Dreamweaver, Fireworks Certification at Cégep de Maisonneuve
January 1, 2003 - January 1, 2003JavaScript Certification at Collège Bois-de-Boulogne
January 1, 2021 - January 1, 2021DevOps Tools Certification at Collège Bois-de-Boulogne
January 1, 2024 - January 1, 2024Qualifications
DevOps Tools Certification
January 1, 2024 - December 31, 2024JavaScript Certification
January 1, 2021 - December 31, 2021AEC in Web Technology Programming
January 1, 2021 - December 31, 2021AEC in 3D Animation
January 1, 2007 - December 31, 2007Macromedia Flash, Dreamweaver, Fireworks Certification
January 1, 2003 - December 31, 2003PC Hardware Specialist Certification
January 1, 2000 - December 31, 2000DevOps Tools Certification
January 1, 2024 - December 31, 2024JavaScript Certification
January 1, 2021 - December 31, 2021AEC in Web Technology Programming
January 1, 2021 - December 31, 2021AEC in 3D Animation
January 1, 2007 - December 31, 2007Macromedia Flash, Dreamweaver, Fireworks Certification
January 1, 2003 - December 31, 2003PC Hardware Specialist Certification
January 1, 2000 - December 31, 2000DevOps Tools Certification
January 1, 2024 - January 1, 2024JavaScript Certification
January 1, 2021 - January 1, 2021Macromedia Flash, Dreamweaver, Fireworks Certification
January 1, 2003 - January 1, 2003PC Hardware Specialist Certification
January 1, 2000 - January 1, 2000Industry Experience
Software & Internet, Telecommunications, Media & Entertainment, Education, Professional Services, Retail
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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