Job Summary

We are seeking an experienced Senior .NET Application Engineer to design, develop, implement, and maintain technical solutions supporting legacy .NET applications across Windows 10/11, Windows Server, and cloud/OpenShift environments.

The ideal candidate will have strong hands-on experience with the .NET technology stack, C#, Windows-hosted applications, OpenShift, application security, APIs, and legacy application modernization . This role will focus on improving application stability, reducing technical debt, enhancing automation, and supporting ongoing modernization initiatives.

Key Responsibilities

- Design, develop, implement, and maintain .NET applications and application components across Windows and cloud/OpenShift environments.
- Support and enhance legacy .NET applications , including desktop application components.
- Identify opportunities to reduce technical debt , improve application performance, and increase automation.
- Troubleshoot application issues and perform root cause analysis (RCA) .
- Refactor legacy code and implement appropriate technical improvements.
- Address application vulnerabilities and support security remediation activities.
- Implement and maintain authentication and authorization mechanisms.
- Work with OAuth, Active Directory, application certificates , and related security technologies.
- Develop and support integrations using HTTP, REST, SOAP, and other web services .
- Work with XML structures and data layouts to facilitate data movement between platforms.
- Document application updates, technical changes, and implementation activities.
- Collaborate with business stakeholders, Agile squads, and Site Reliability Engineering (SRE) teams.
- Participate in technical planning, prioritization, development, testing, and production support.




- Work with teams and stakeholders across Canada and globally .

Required Qualifications
- 5+ years of hands-on experience with the .NET technology stack.
- Solid experience with C#, .NET Framework, .NET Core, or ASP.NET .
- Experience developing, implementing, and maintaining applications across Windows 10/11 and Windows Server environments.
- Experience supporting cloud/OpenShift-hosted applications .
- Strong understanding of OAuth, Active Directory, authentication, and authorization mechanisms .
- Experience working with application certificates and security-related configurations.
- Strong knowledge of HTTP, REST, and SOAP protocols.
- Experience working with XML structures and data layouts .
- Proven experience troubleshooting complex application issues and performing root cause analysis .
- Experience with legacy code refactoring and application modernization .
- Experience identifying and remediating application vulnerabilities .
- Strong analytical, troubleshooting, and problem-solving skills.
- Excellent communication and collaboration skills.

Preferred Qualifications
- Experience with Red Hat OpenShift and Kubernetes .
- Experience with CI/CD and DevOps practices.
- Experience working with Agile/Scrum teams .
- Experience collaborating with SRE teams .
- Experience with application monitoring and production support.
- Knowledge of automation and technical debt reduction strategies.
- Experience working in large enterprise environments.

What We’re Looking For The ideal candidate is a hands-on .NET application engineer who is comfortable working with both legacy Windows applications and modern cloud/OpenShift environments . You should be able to troubleshoot complex issues, identify root causes, improve legacy code, address security vulnerabilities, and collaborate effectively with business, development, and SRE teams.

📌 .NET Application Engineer (Toronto)
🏢 Axiom Global Technologies
📍 Toronto