Sanexen is looking for a Full Stack Senior Developer for our Brossard office.
Job description
Job Summary
Sanexen is looking for a passionate and autonomous Senior Full Stack Developer to manage, evolve and redesign a large-scale application used to manage contaminated soils that Sanexen is mandated to dispose of or rehabilitate. This key role requires full involvement in the product lifecycle – from user requirements gathering through to delivery and support of the solution. The incumbent will contribute to both the maintenance of the current application and the development of version 2.0, which will serve as the foundation for the coming years.
Key Responsibilities:
- Analyze business needs in collaboration with internal stakeholders (operations, engineering, environment, IT).
- Design and document technical solutions, in line with software architecture best practices.
- Develop and maintain the front-end and back-end functionalities of the existing application.
- Participate in the complete redesign (version 2.0) of the application, including the modernization of the technology stack.
- Ensure code quality through reviews, automated tests and continuous integration.
- Write the relevant technical and functional documentation.
- Provide advanced application support, diagnose and resolve incidents.
- Work closely with the IT team to ensure system security, performance and stability.
Qualifications required
Sought Profile
- Education: Bachelor’s degree in computer science or equivalent experience.
- Experience: 5 to 10 years’ experience in full stack development, ideally in complex, integrated environments.
- Analytical skills: Experience in requirements analysis, functional analysis and software architecture.
- Technical mastery (Back-end) : Solid expertise with .NET Core / ASP.NET and C# (or equivalent).
- Technical expertise (Front-end): Concrete experience with React, Angular or Blazor.
- Databases: Proficiency in SQL Server, PostgreSQL or a similar system.
- Professional qualities: thoroughness, sense of responsibility, attention to detail and excellent ability to work independently.
- Collaboration: Strong aptitude for teamwork and collaboration with internal stakeholders.
Assets
- Architecture & APIs: Knowledge of REST APIs, microservices and third-party integrations.
- DevOps methodologies: Experience with CI/CD tools such as Azure DevOps, GitHub Actions or their equivalents.
Proficiency in French and English:
Given the diversity of our team and the need to work with local, pan-Canadian, and international clients and partners, the ability to understand and communicate in both languages is required.
We value diversity and inclusion and are committed to providing a respectful and equitable work environment for all.
Choosing SANEXEN means:
- Competitive compensation;
- Benefits that meet your needs;
- Opportunities for career development and professional growth;
- Projects and challenges that align our DNA and your passion;
- A dynamic environment where everyone works toward shared goals.
About SANEXEN
SANEXEN – Over 40 years of innovative environmental solutions
A North American leader in environmental solutions, SANEXEN has been designing sustainable, customized, state-of-the-art solutions for over four decades. Our areas of expertise include site remediation, management of regulated materials, risk assessment, dredging, dewatering, industrial effluent treatment, PFAS removal, and much more.
What sets us apart? Our passionate multidisciplinary teams of engineers, scientists, and environmental specialists who innovate every day to tackle the most complex environmental challenges facing the industrial, municipal, and government sectors.
Working at SANEXEN means contributing to meaningful projects in a workplace where your expertise is valued, your voice matters, and your growth is supported.
Here, you are part of a committed team building a cleaner, safer, and more sustainable future — for everyone.
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