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.Net Developer with App support experience / Toronto, ON (Hybrid)

Acestack

Role: .Net Developer with App support experience

Location: Toronto, Canada (Hybrid) Exp Range: 10 Years-----Role Summary

We are seeking a .NET Developer with strong experience in application maintenance, support, and enhancement activities. The role requires hands‑on expertise in VB.NET / ASP.NET or C#, solid understanding of MVC architecture, 2‑tier and 3‑tier application models, and experience working with web services, APIs, and SQL Server‑based backend systems. The candidate will play a critical role in ensuring application stability, resolving production issues, and delivering continuous improvements.

Key Responsibilities

  • Provide end-to-end application maintenance and production support for .NET‑based systems.
  • Analyze, troubleshoot, and resolve application defects, performance issues, and user‑reported incidents.
  • Implement enhancements, minor changes, and continuous improvements to existing applications.
  • Develop and maintain applications using ASP.NET, VB.NET and/or C# with MVC framework.
  • Work with 2‑tier and 3‑tier architecture involving UI, business logic, and data access layers.
  • Design, develop, and consume REST/SOAP web services and APIs for system integration.
  • Develop and optimize SQL Server queries, stored procedures, functions, and database interactions.
  • Perform impact analysis, root cause analysis, and ensure resolution within SLAs.
  • Participate in release management, code deployments, regression testing, and documentation.
  • Collaborate with business users, QA teams, and cross‑functional IT teams to ensure solution stability.

Required Qualifications

  • Bachelor's degree in Computer Science, Engineering, or related field.
  • Hands‑on experience in .NET technologies including ASP.NET, VB.NET or C#.
  • Strong understanding of MVC design pattern and layered architecture (2‑tier / 3‑tier).
  • Experience in application support, bug fixing, and enhancement delivery.
  • Working knowledge of web services (REST/SOAP) and API integration.
  • Strong SQL Server skills including stored procedures, performance tuning, and data handling.
  • Good understanding of debugging, logging, exception handling, and application monitoring.
  • Experience working in structured SDLC or Agile environments.

Preferred Skills

  • Experience with IIS, .NET Core / modern .NET frameworks.
  • Exposure to DevOps tools, CI/CD pipelines, and version control systems.
  • Familiarity with cloud platforms (Azure preferred) and application monitoring tools.
  • Experience in BFSI / insurance or other regulated environments.
  • Knowledge of performance optimization and code refactoring practices.

Core Competencies

  • Strong problem‑solving and debugging skills
  • Ownership and accountability in support environments
  • Effective communication with business and IT stakeholders
  • Ability to work under SLA‑driven support models
  • Continuous improvement mindset
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Vacancy posted 7 days ago
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