Senior Full Stack Developer

Jobtailor; Toronto; On-site; CAD 90,000 - 130,000; Full time

Job summary

Jobtailor is seeking an experienced C#/.NET developer to design, build, and maintain desktop applications in a fast-paced team in Toronto, Ontario. You will work on SQL Server databases, create robust Web API integrations, and help modernize legacy systems while aligning with DevOps best practices.

The role emphasizes strong problem-solving, clear communication, and the ability to work independently in a small team. Familiarity with WinForms and Azure DevOps is highly valued.

Qualifications

• 5–10+ years of experience in C#/.NET development.
• Strong experience with WinForms applications.
• Solid knowledge of SQL Server and TSQL.
• Experience working with APIs and system integrations.
• Familiarity with Azure DevOps or similar tools.
• Strong problem-solving and communication skills.
• Ability to work independently in a small team environment.
• Nice to Have: VB6 or legacy system modernization
• Nice to Have: Exposure to DevExpress tools
• Nice to Have: Experience with AI-assisted development tools
• Nice to Have: Knowledge of Windows Server, IIS, or Citrix environments

Responsibilities

• Design, develop, and maintain C#/.NET desktop applications
• Write and maintain SQL Server (TSQL) queries and database structures
• Build and integrate Web APIs across internal systems
• Support ongoing modernization projects, including legacy system migration
• Contribute to code quality, testing, and DevOps practices
• Collaborate with team members to deliver effective technical solutions

Skills

C#/.NET Development

Web API Integration

Problem-Solving

Communication

Team Collaboration

Independent Work

Legacy System Modernization

Tools

SQL Server

TSQL

WinForms

VB6

DevExpress

Azure DevOps

Windows Server

IIS

Citrix

AI-Assisted Development Tools

Job description

• Design, develop, and maintain C#/.NET desktop applications
• Write and maintain SQL Server (TSQL) queries and database structures
• Build and integrate Web APIs across internal systems
• Support ongoing modernization projects, including legacy system migration
• Contribute to code quality, testing, and DevOps practices
• Collaborate with team members to deliver effective technical solutions

Requirements

• 5–10+ years of experience in C#/.NET development
• Strong experience with WinForms applications
• Solid knowledge of SQL Server and TSQL
• Experience working with APIs and system integrations
• Familiarity with Azure DevOps or similar tools
• Strong problem-solving and communication skills
• Ability to work independently in a small team environment
• Nice to Have: Experience with VB6 or legacy system modernization
• Nice to Have: Exposure to DevExpress tools
• Nice to Have: Experience with AI-assisted development tools
• Nice to Have: Knowledge of Windows Server, IIS, or Citrix environments

Core Competencies

Demonstrates expertise in C#/.NET development, SQL Server, and API integration, with a strong focus on code quality and DevOps practices. Proven ability to collaborate effectively in a team environment while supporting modernization projects and legacy system migration.

Highest-signal resume keywords

• C#/.NET Development
• SQL Server
• TSQL
• Web API Integration
• Azure DevOps

Hard Skills

• C#/.NET Development
• SQL Server
• TSQL
• WinForms Applications
• Web API Integration
• Legacy System Modernization
• DevOps Practices
• Code Quality
• Database Structures
• AI-Assisted Development Tools

Soft Skills

• Problem-Solving
• Communication
• Team Collaboration
• Independent Work

Tools & Technologies

• Azure DevOps
• DevExpress
• Windows Server
• IIS
• Citrix