Senior .NET Developer

Position: Senior .NET Developer

Location: Toronto, ON

Job ID#: RQ11090 

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Duration: 8 Months

Role Overview

We are seeking a Senior Full Stack Software Developer to design, build, and support scalable web applications and data-driven systems. The ideal candidate will bring strong expertise in modern application architecture, cloud technologies, and full stack development while collaborating across teams in an Agile environment.

Key Responsibilities

• Design, implement, and expand data pipelines, including ETL (extract, transform, load) processes
  


• Translate technical specifications into working, tested applications
  


• Develop detailed programming specifications, write code, conduct unit testing, and maintain applications
  


• Troubleshoot and resolve technical issues during development, deployment, and production use
  


• Provide technical support for implementation, conversion, and migration activities
  


• Collaborate with cross-functional teams throughout the Software Development Life Cycle (SDLC)
  


• Design, build, test, and document applications using structured methodologies
  


• Develop and integrate APIs and support front-end and back-end system architecture
  


• Ensure applications meet performance, scalability, and security requirements
  


• Participate in design reviews, technical walkthroughs, and documentation creation
  


• Provide post-implementation support and resolve technical issues
  

General Skills

• Strong programming and systems analysis experience
  


• Experience with structured development methodologies and SDLC practices
  


• Ability to design, code, test, debug, and document applications
  


• Experience with multiple programming languages and development frameworks
  


• Knowledge of relational and hierarchical databases
  


• Experience with query languages and data retrieval tools
  


• Understanding of application architecture, design patterns, and deployment
  


• Strong communication, analytical, and problem-solving skills
  


• Proven ability to collaborate and meet project deadlines
  

Full Stack Skills

• Proficiency in both front-end and back-end development (including database design and DevOps)
  


• Experience designing scalable web architecture and REST API services
  


• Ability to integrate UI components with APIs
  


• Experience implementing continuous integration and deployment pipelines
  


• Strong knowledge of front-end frameworks, UI development, and performance optimization
  

Technical Skills (65%)

• Extensive experience with:
  




• C#, .NET Core, ASP.NET, Web API, Blazor WASM, LINQ, WCF, Entity Framework
  


• Redis Cache, xUnit, Moq
  


• Crystal Reports
  


• Strong experience with Azure Cloud technologies , including:
  




• Azure AD (Entra ID), OAuth, MFA, SSO
  


• Azure Functions, App Services, Containers
  


• Key Vault, Managed Identities
  


• API development and security:
  




• Swagger, Postman, ThunderClient
  


• API configuration, CORS policies
  


• Front-end technologies:
  




• HTML, CSS, JavaScript, Angular / AngularJS
  


• Accessibility compliance (WCAG, AODA)
  


• DevOps and Agile tools:
  




• Azure DevOps, CI/CD pipelines, JIRA
  


• Database expertise:
  




• Oracle, SQL Server, PL/SQL tools (TOAD, PL/SQL Developer)
  


• Experience with multi-threaded services and reusable component design
  


• Strong understanding of SOLID principles, dependency injection, and modular design
  

Other Experience & Skills (30%)

• Experience supporting complex, multi-system business environments
  


• Ability to lead users and stakeholders through project delivery
  


• Strong technical documentation and specification writing skills
  


• Experience working in multi-client or partner environments
  


• Excellent communication, negotiation, and analytical skills
  

Public Sector Experience (5%)

• Experience working in public sector environments, especially in education systems
  


• Knowledge of accessibility standards such as AODA
  

About Symbiotic Digital

Symbiotic Digital provides the IT Experts you need that solve problems and get things done. See what the top 2% in their field can do for you. (Symbiotic Digital is a division of Symbiotic Group Inc.)

We serve customers in two ways, we provide:

1. Digital Experts: IT Consulting expertise. Bright Minds That Produce Proven Results
   


2. Recruitment: Find The Right People You Need
   

Serving IT & Business leaders, Symbiotic Digital provides a business system that enable us to provide the Expert Technical staff needed to solve challenging business and IT problems. IT leaders in the most reputable organizations in Canada have relied on Symbiotic Digital to help them staff difficult assignments with proven Experts uniquely evaluated by our proven QMS- Quality Management System Staff Development Model. We are a 100% Indigenous owned company.

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