Senior Software Developer (C#/.NET)

Walters Group is a family-owned steel construction company that designs, fabricates, and constructs unique and complex commercial and industrial projects throughout North America. With over 65 years of experience, Walters ensures high quality results through our passion and commitment to every project. Our head office is located in Hamilton and we have multiple fabrication plants in Hamilton, Stoney Creek and Princeton. As Walters grows and expands into new markets, we are seeking to welcome aspiring and driven individuals to our team who share our passion, vision, and values.

At Walters, we build history, and we are incredibly proud of our projects, to name a few - Tim Hortons Field in Hamilton, ON, the Burgoyne Bridge in St. Catharines, ON, The Bow in Calgary, AB, and the Canadian Museum of Human Rights in Winnipeg, MB.

We're consistently ranked among the best companies to work for, including Canada's Best Managed and Great Place to Work Certified. We're committed to supporting and developing our teams. We also ensure a positive, safe, collaborative work environment with ample personal and career development opportunities.

If you want to be a part of our team – read on and apply. Even if you feel like you don’t meet all criteria, please give it a shot, and still apply. 

Vacancy type: This posting is for an existing vacancy.

About the Position:

Design and implement server-side application logic, RESTful APIs, and SQL Server integrations using C#/.NET and ASP.NET Core, ensuring scalability, maintainability, and long-term reliability. 

Develop high-performance APIs that enable seamless communication across the application ecosystem. 

Produce clean, maintainable code that adheres to modern design principles and supports long-term system health. 

Establish and maintain a strong automated testing framework (unit, integration, and end-to-end tests). 

Provide in-depth code reviews, offering guidance that improves architecture consistency, security, performance, and overall code quality. 

Drive technical research efforts, including proofs of concept, to evaluate new technologies and identify potential risks or opportunities. 

Collaborate with stakeholders to translate business requirements into technical designs, iterating quickly while keeping quality high. 

Contribute to deployment and release practices (CI/CD), environment management, and infrastructure collaboration (DevOps). 

Work Location:

Head office in Hamilton ON.

Position Requirements:

5+ years of hands-on software engineering experience in application development. 

Strong experience with .NET/C#, including WinForms development and the Model–View–Presenter (MVP) design. 

Strong experience building and integrating RESTful APIs in .NET / ASP.NET Core. 

Extensive expertise in SQL Server, including stored procedures, functions, indexing, query tuning, and performance optimization; strong schema design skills. 

Strong architecture skills: clean separation of UI/business/data concerns, domain modeling for workflow-heavy systems; reliable integration with external systems.

Solid understanding of Azure DevOps, Git workflows, and CI/CD pipelines.

Familiarity with automated testing frameworks (xUnit/NUnit, mocking, integration test patterns) and quality practices.

Experience with MSAL authentication and Microsoft Graph is an asset. 

Bachelor’s degree in Computer Science or Software Engineering, or a related field.

Compensation Package:

Salary: $95,000-$120,000/Year

Vacation.

Paid sick and Bereavement leaves.

Flexible extended health and dental care packages.

Employee Assistance Program.

RRSP Matching.

Profit Sharing.

Employee Family Scholarship Program.

Tuition support (Apprentice, Continued Education)

Values in Action (ViA)- participating in charity events coordinated by employees. As well as team bonding activities.

Walters Group is committed to providing accommodations throughout the interview and employment process. If you require an accommodation, we will work with you to meet your needs.

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