Upstaff - Senior Software Developer – GeoTalent / .NET / Blazor

Software Engineer is needed in Toronto, Canada.

Client: Upstaff

Location: Toronto, ON, ca

Contract: Contract

Job Description

The Ontario Ministry of Solicitor General’s Justice Technology Services (JTS) is seeking a Senior Software Developer to support and maintain existing web applications and develop new web-based initiatives. The role requires extensive experience with GeoTalent, the TP Macro Language and TP environment, as well as enterprise-level .NET technologies.

The successful candidate will design, develop, test, debug, implement, document and maintain applications. They will build front-end web functionality and back-end administrative console features within GeoTalent, develop Learning Management System (LMS) modules, and deliver enterprise applications using ASP.NET Core, C#, Blazor Server, Razor, LINQ, Entity Framework and Microsoft SQL Server.

Key responsibilities include:

• Translate technical specifications into working, tested applications and develop detailed programming specifications.
• Design, develop, modify, compile, test, debug, document and maintain software applications.
• Develop and maintain GeoTalent applications using the TP Macro Language and TP environment.
• Support existing web applications and develop new web-based initiatives.
• Design and implement enterprise-level .NET applications and database solutions.
• Create and optimize SQL queries, stored procedures, views, scripts and data models.
• Perform technical analysis of application design, architecture, integration and implementation.
• Troubleshoot issues related to software implementation, operation, conversion and migration.
• Participate throughout the Software Development Life Cycle (SDLC), including quality assurance activities.
• Conduct design walkthroughs and contribute to technical solution reviews.
• Provide post-implementation support and resolve application issues.
• Prepare technical, user and system documentation and participate in knowledge-transfer activities.
• Collaborate with IT professionals, project teams, business stakeholders and subject matter experts.
• Follow structured development methodologies and meet project deadlines while maintaining quality standards.
• Ensure solutions comply with accessibility requirements, including AODA.

Requirements

Mandatory Qualifications and Technical Skills

• GeoTalent: At least 10 years of hands-on experience with GeoTalent and its development environment, including the TP Macro Language and TP environment.
• Demonstrated experience designing and implementing GeoTalent solutions, including front-end web features and back-end administrative console functionality.
• Experience designing, building and delivering Learning Management System modules using the TP Macro Language and TP environment.
• Experience performing technical analysis of solution design and architecture within GeoTalent.
• .NET development: At least 8 years of .NET experience, with 10+ years required for enterprise-level criteria.
• Strong experience with C#, ASP.NET Core and .NET 6 or later, Blazor Server, Razor syntax, LINQ and Entity Framework.
• Experience developing enterprise-level .NET applications using loosely coupled components and n-tier architecture.
• Database development: Strong database and data-modelling skills, including complex SQL queries, stored procedures, views, scripts and information retrieval.
• Experience with Microsoft SQL Server 2019 or later and SQL Server Management Studio (SSMS).
• Experience developing database and backup scripts, testing reports, and validating data accuracy.
• Senior-level experience: At least 10 years of programming and analysis experience, including application design, development, testing, debugging, implementation, maintenance and support.
• Strong analytical, problem-solving, decision-making, communication and interpersonal skills.
• Development tools: Visual Studio, Visual Studio 2022 or later, Azure DevOps and Windows operating systems.
• Experience with IIS environments, including IIS 6.0, 7.0 and 7.5.
• Web development: Experience with HTML 4 and 5, Bootstrap 4 or later, CSS/CSS3, JavaScript and jQuery.

Required Technical Stack

• GeoTalent — 10+ years; mandatory
• TP Macro Language and TP environment — mandatory
• Learning Management Systems — required
• .NET — 8+ years minimum; 10+ years preferred and required for enterprise criteria
• ASP.NET Core .NET 6+, C#, Blazor Server, Entity Framework, LINQ and Razor syntax — mandatory
• Microsoft SQL Server 2019+, SQL, data modelling, stored procedures and SQL views — required
• Visual Studio, Visual Studio 2022+ and Azure DevOps — required
• HTML 4/5, Bootstrap 4+, CSS/CSS3 and JavaScript/jQuery — required
• Windows and IIS — required

Preferred Qualifications

• Additional GeoTalent and Learning Management System development experience.
• Experience with Sax Basic, Sax Basic macros and SCORM.
• Experience with .NET Framework 2.0 through 4.5, Telerik UI for Blazor and the Fluent library.
• Experience with iText .NET libraries, particularly iText 5, and development of PDF/UA documents.
• Experience developing Internet-ready applications, middleware, gateways and installation scripts.
• Experience with application conversion, migration and post-implementation support.
• Knowledge of rapid application development methodologies and Information Management principles.
• Knowledge of AODA and related accessibility standards and regulations.
• Experience preparing user and system documentation, conducting technical design walkthroughs, and validating data and reports.

Additional Information

• Position: Software Developer – Senior
• Client: Justice Technology Services, Ministry of Solicitor General, Ontario Government
• Location: 25 Morton Shulman Avenue, North York, Toronto, Ontario
• Work arrangement: Provisionally hybrid; currently listed as onsite
• Start date: November 9, 2026
• End date: October 5, 2027
• Contract duration: Approximately 250 business days
• Openings: 1
• Level: Senior / Level 3
• Security clearance: CRJMC
• Application deadline: October 8, 2026 at 10:30 AM
• Maximum submissions: 1

Evaluation Criteria

• Technical skills — 40 points: Evaluation will focus on experience designing, building and delivering LMS modules using the TP Macro Language and TP environment.
• Database development experience, including data modelling, SQL programming, queries, stored procedures and views.
• Experience designing and developing user and system interfaces.
• Experience using SQL for information retrieval.