Senior .NET Developer

Symbiotic Digital•Toronto, ON

3d•Onsite

About The Position

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.

Requirements

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
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
Extensive experience with: C#, .NET Core, ASP.NET, Web API, Blazor WASM, LINQ, WCF, Entity Framework
Extensive experience with: Redis Cache, xUnit, Moq
Extensive experience with: Crystal Reports
Strong experience with Azure Cloud technologies, including: Azure AD (Entra ID), OAuth, MFA, SSO
Strong experience with Azure Cloud technologies, including: Azure Functions, App Services, Containers
Strong experience with Azure Cloud technologies, including: Key Vault, Managed Identities
API development and security: Swagger, Postman, ThunderClient
API development and security: API configuration, CORS policies
Front-end technologies: HTML, CSS, JavaScript, Angular / AngularJS
Front-end technologies: 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
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
Experience working in public sector environments, especially in education systems
Knowledge of accessibility standards such as AODA

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