Senior Support Maintenance and Dev (.NET)

Vantix Systems Inc.; Regina; On-site; CAD 95,000 - 115,000; Full time

Job summary

Vantix Systems Inc. in Regina, Saskatchewan, seeks a Senior Support, Maintenance and Development (.NET) professional to keep mission-critical applications running smoothly while building modern integrations.

This hands-on role blends new development with production support across an enterprise environment, delivering fixes, performance improvements, and a better user experience. The position is fully on site in Regina, Monday to Friday.

Qualifications

• 5+ years of professional C# .NET development experience.
• 5+ years integrating Web APIs (REST) using XML and JSON.
• 5+ years developing modern APIs and backend services.
• 5+ years building web apps with Angular, Node.js, TypeScript, HTML, CSS.
• 5+ years of SQL Server scripting.
• Ability to work full time on site in Regina, SK (Mon-Fri).

Responsibilities

• Build, enhance, and maintain C# .NET applications and services.
• Design and develop modern Web APIs (REST) and integrations (XML, JSON).
• Develop and support web applications using Angular, Node.js, TypeScript, HTML, and CSS.
• Write and maintain database scripts and queries using SQL Server.
• Troubleshoot, triage, and resolve production issues; deliver fixes and improvements with strong attention to stability.
• Participate in code reviews, documentation, and operational readiness to support smooth releases.
• Support application deployments and configuration in IIS.
• Contribute to ongoing maintenance activities such as upgrades and environment compatibility work.
• Collaborate with cross functional teams to ensure solutions are supportable.

Skills

C# .NET

Web APIs (REST)

XML/JSON

Angular

Node.js

TypeScript

HTML/CSS

SQL Server

On-site Regina work

Education

Bachelor's or Diploma in CS/IS/Engineering

Tools

Azure

Azure DevOps

CI/CD

Git

Postman

SSRS/SSMS

Oracle tooling

Job description

Our client is seeking a Senior Support, Maintenance and Development (.NET) professional to keep mission critical business applications running smoothly while also building and enhancing modern integrations. This is a hands on role blending new development with production support, where your work will directly improve reliability, performance, and user experience across a complex enterprise environment. This position is fully on site in Regina, Saskatchewan (Monday to Friday).

Responsibilities

• Build, enhance, and maintain C# .NET applications and services
• Design and develop modern Web APIs (REST) and integrations (XML, JSON)
• Develop and support web applications using Angular, Node.js, TypeScript, HTML, and CSS
• Write and maintain database scripts and queries using SQL Server
• Troubleshoot, triage, and resolve production issues; deliver fixes and improvements with strong attention to stability
• Participate in code reviews, documentation, and operational readiness to support smooth releases
• Support application deployments and configuration in IIS
• Contribute to ongoing maintenance activities such as upgrades and environment compatibility work
• Collaborate with cross functional teams (operations, security, architecture, delivery) to ensure solutions are supportable

Qualifications

• 5+ years of professional experience developing with C# .NET
• 5+ years of experience integrating with Web APIs (REST) using XML and JSON
• 5+ years of experience developing modern APIs and backend services
• 5+ years of experience building web applications with Angular, Node.js, TypeScript, HTML, CSS
• 5+ years of SQL Server scripting experience
• Ability to work full time on site in Regina, SK (Monday to Friday)

Nice to have (not required)

• Degree or diploma in Computer Science, Information Systems, Engineering, or a related discipline
• Experience with Azure, Azure DevOps, and CI CD
• Familiarity with Git, Postman, performance testing and tuning
• Experience with SSRS, SSMS, or Oracle tooling and scripting
• Integrations experience (for example, identity directory services, ERP, HRIS, service platforms)
• Exposure to AI assisted development tools and integrating AI services via APIs or SDKs

We believe diverse teams build stronger companies, and we welcome applicants from all backgrounds, experiences, and perspectives.

To be considered, applicants must be legally entitled to work in Canada, including holding any required permits.

Accommodation is available upon request throughout all stages of the recruitment process.