.NET Application Engineer

Axiom Global Technologies; Toronto; On-site; CAD 90,000 - 130,000; Full time

Job summary

Axiom Global Technologies is seeking a hands-on Senior .NET Application Engineer to design, develop, and modernize legacy .NET applications across Windows and cloud/OpenShift environments. You will focus on stability, automation, and security while supporting modernization efforts.

The ideal candidate brings 5+ years in .NET, strong C#, OpenShift experience, and deep knowledge of authentication, APIs, and data interchange formats. Collaboration with cross-functional teams and SREs is essential.

Qualifications

• 5+ years hands-on experience with the .NET technology stack (C#, .NET Framework/Core/ASP.NET).
• Experience building and maintaining Windows 10/11/Server applications and cloud/OpenShift-hosted apps.
• Strong knowledge of OAuth, Active Directory, authentication/authorization mechanisms.

Responsibilities

• Design, develop, implement, and maintain .NET applications across Windows and cloud/OpenShift environments.
• Support legacy .NET applications and desktop components.
• Reduce technical debt, improve performance, and increase automation.
• Troubleshoot complex issues and perform root cause analysis (RCA).
• Refactor legacy code and implement security improvements.
• Work with authentication/authorization, application certificates, and security remediation.
• Develop and support integrations using HTTP, REST, SOAP, and other web services.
• Collaborate with business stakeholders, Agile squads, and SRE teams.

Skills

.NET stack

C#

OpenShift

OAuth

Active Directory

HTTP/REST/SOAP

XML

legacy modernization

root cause analysis

automation

Tools

OpenShift

Kubernetes

CI/CD tooling

Job description

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.
• Strong 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.