Position: Full Stack Developer (.NET) Location: Toronto, ON (Onsite)

Job ID#: RQ11319 ​ Duration: 6 Months

Role Overview We are seeking a highly experienced Senior Software Developer to design, develop, and enhance enterprise-grade applications within a complex, mission-critical environment. The role involves working closely with project teams, contributing to system integration planning, and delivering scalable solutions aligned with established standards and best practices.

Key Responsibilities Design, develop, and implement enhancements to enterprise applications Translate business and functional requirements into working, tested solutions Develop RESTful API services using ASP.NET Web API Support transition to modern development practices, including Agile/Scrum and DevOps tooling Provide technical leadership, mentorship, and guidance to team members Conduct analysis, design, development, testing, and deployment of applications Develop programming specifications, prototypes, and user interfaces Perform unit testing, debugging, and issue resolution Provide ongoing application support including break/fix and change management Collaborate with stakeholders to define and implement system improvements Produce technical documentation, diagrams, and design artifacts (e.g., use cases, class diagrams) Participate in system and integration testing cycles Develop authentication, access control, and system interface components Prepare deployment packages and implementation documentation Ensure knowledge transfer to internal teams through documentation and collaboration Participate in meetings related to enhancements, incidents, and project milestones Ensure compliance with organizational standards, policies, and best practices

Qualifications Mandatory Requirements Minimum 10 years of experience designing and developing enterprise-level applications Strong expertise with: ASP.NET (Web API / REST API) .NET Framework (including 4.8.1) C#.NET VB.NET SQL JavaScript frameworks such as Vue.js and Angular

Desired Skills & Experience Experience with Windows environments (Windows 10, Windows Server 2016+) Familiarity with API design/documentation tools (e.g., Swagger, Postman) Experience with .NET Core / .NET 5+ Hands-on experience with: Visual Studio Azure DevOps Services / Team Foundation Server MS SQL Server Web Services and middleware technologies Experience with frameworks and tools such as: Windows Communication Foundation (WCF) Windows Presentation Foundation (WPF) Entity Framework Enterprise Library Strong experience in: Structured development methodologies (Agile & Waterfall) Application performance tuning and troubleshooting Database technologies and data integration Technical documentation and architecture design

Soft Skills Strong analytical and problem-solving abilities Excellent communication (verbal and written) Ability to collaborate effectively with both technical and non-technical stakeholders Proven leadership and mentorship experience Strong time management and ability to meet deadlines

Evaluation Criteria .NET Programming (40%) – Enterprise application development, APIs, frameworks, and architecture Technical Skills (30%) – System integration, solution design, technical leadership Communication Skills (30%) – Stakeholder interaction, documentation, and presentation

Knowledge Transfer Deliver complete documentation for functional and technical specifications Provide ongoing knowledge transfer to team members throughout the project lifecycle

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: Digital Experts: IT Consulting expertise. Bright Minds That Produce Proven Results Recruitment: Find The Right People You Need Serving IT & Business leaders, Symbiotic Digital provides a business system that enables us to provide the Expert Technical staff needed to solve challenging business and IT problems. IT leaders in top organizations across Canada rely on Symbiotic Digital to staff difficult assignments with proven Experts, evaluated through our QMS - Quality Management System Staff Development Model. We are a 100% Indigenous-owned company. Learn more online at https://www.symbioticgroup.com/home-sd/. Please submit your most recent resume to: RecDep@symbioticgroup.com View All Jobs online at: https://www.symbioticgroup.com/view-jobs/