Senior .NET 10 Developer (10+ years) required to modernize and implement the Cost Estimate System using .NET 10, Oracle 12c, SQL Server 2025 Enterprise, SSIS, Crystal Reports BOE 4.3, and Power BI. (2026-037)
Our public sector client is seeking a Senior .NET 10 Developer (10+ years) to modernize and implement the Cost Estimate System using .NET 10, Oracle 12c, SQL Server 2025 Enterprise, SSIS, Crystal Reports BOE 4.3, and Power BI.

This role supports the continued modernization and implementation of the Cost Estimate System within a public sector environment. The project includes CES application development, Oracle to SQL Server migration, report integration, and production deployment activities across QA, UAT, and operational support phases. The successful candidate will contribute to Phase 1 production implementation and Phase 2 enhancements while supporting long-term operational readiness through documentation and knowledge transfer.

Contract, Toronto, Hybrid, Working Hours: EST

Must Haves
10+ years in .NET 10 , ASP.NET Core 8+ , ASP.NET Core MVC , Web APIs , and REST APIs development
Oracle 19C , SQL Server 2019+ , SQL Server 2025 Enterprise , and Oracle 12c to SQL Server migration
SSIS development, data migration , and Power BI Report Development
Crystal Reports , BusinessObjects Enterprise (BOE) 4.3 , Crystal Reports 2020 , and Telerik UI
Degree or diploma in a related field

Nice to Have
OWASP testing
Sales, inventory management, and costing systems development

Responsibilities
Develop and implement CES application enhancements and modernization initiatives
Perform CES database migration from Oracle 12c to SQL Server 2025 Enterprise
Upgrade the CES application from .NET 8.0 to .NET 10
Develop and integrate reports using Crystal Reports, BusinessObjects Enterprise (BOE), and Power BI
Design and develop SSIS interfaces and data integration processes
Provide technical support during SIT, QA, UAT, and Production deployment
Develop technical documentation, operational support documentation,



and troubleshooting guides

Our public sector client is seeking a Senior .NET 10 Developer (10+ years) to modernize and implement the Cost Estimate System using .NET 10, Oracle 12c, SQL Server 2025 Enterprise, SSIS, Crystal Reports BOE 4.3, and Power BI.

This role supports the continued modernization and implementation of the Cost Estimate System within a public sector setting. The project includes CES application development, Oracle to SQL Server migration, report integration, and production deployment activities across QA, UAT, and operational support phases. The successful candidate will contribute to Phase 1 production implementation and Phase 2 enhancements while supporting long-term operational readiness through documentation and knowledge transfer.

Contract, Toronto, Hybrid, Working Hours: EST

Must Haves
10+ years in .NET 10 , ASP.NET Core 8+ , ASP.NET Core MVC , Web APIs , and REST APIs development
Oracle 19C , SQL Server 2019+ , SQL Server 2025 Enterprise , and Oracle 12c to SQL Server migration
SSIS development, data migration , and Power BI Report Development
Crystal Reports , BusinessObjects Enterprise (BOE) 4.3 , Crystal Reports 2020 , and Telerik UI
Degree or diploma in a related field

Nice to Have
.NET Certification
OWASP testing
JavaScript frameworks such as Angular
Sales, inventory management, and costing systems development

Responsibilities
Develop and implement CES application enhancements and modernization initiatives
Perform CES database migration from Oracle 12c to SQL Server 2025 Enterprise
Upgrade the CES application from .NET 8.0 to .NET 10
Develop and integrate reports using Crystal Reports, BusinessObjects Enterprise (BOE), and Power BI
Design and develop SSIS interfaces and data integration processes
Provide technical support during SIT, QA, UAT, and Production deployment
Develop technical documentation, operational support documentation, and troubleshooting guides

Disclaimer: AI may be used in evaluating candidates. This posting is for an existing vacancy.

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📌 Senior .NET 10 Developer (10+ years) required to modernize and implement the Cost Estimate System us (Ontario)
🏢 S.i. Systems
📍 Ontario