About the role
TekStaff's Client has a current vacancy for ".net developer"
Job Description Typical Day in Role:
- Review existing VB6 application modules to understand current business logic, workflows, and dependencies.
- Translate and rewrite legacy VB6 code into modern C#/.NET Core following current architectural standards and best practices.
- Analyze legacy SQL queries, stored procedures, and data access patterns, then refactor or rebuild them using SQL Server.
- Document legacy functionality and map it to the new technology stack to ensure functional parity during the rewrite.
- Write clean, maintainable, testable C# code that aligns with the new enterprise‑wide modernization framework.
- Perform unit testing and assist with integration testing to validate rewritten components behave consistently with the original system.
- Participate in code reviews to ensure quality, consistency, and adherence to modernization guidelines.
- Troubleshoot issues discovered during the rewrite process and propose improvements to enhance performance, reliability, and maintainability.
- Contribute to ongoing documentation of the new system, including technical specifications, migration notes, and updated architecture diagrams.
- Support the team by identifying gaps, risks, or dependencies in the modernization effort and recommending solutions.
Candidate Requirements/Must Have Skills: 10+ years of hands-on experience with C# and .Net (framework and/or .NET Core) 5+ years of hands-on experience with VB6, including legacy application support and modernization 3+ years of strong SQL Server experience (T-SQL, performance tuning, SSMS, SSRS) Experience designing enterprise-grade, scalable applications using clean architecture Proficiency with development tools such as Visual Studio, Git, Azure DevOps, Bitbucket,
Nice to have requirements Hands-on experience with REST APIs, Web Services, and integration patterns Experience in financial industry Experience with Agile/Scrum methodologies and CI/CD pipelines Exposure to ISO 20022 or financial message transformations Experience with cloud services and DevOps pipelines
Soft Skills: Self-starter that actively engages issues seeking resolution, ability to meet dynamic changes on prioritization Strong problem-solving skills and attention to detail. Excellent communication and collaboration skills. You possess advanced communication (verbal/written/presentation) skills in English
Degrees or certifications: Bachelor's degree in computer science, information technology, or a related field (or equivalent work experience).
1st round – hiring manager, architect, and senior manager – 30- 60 min -MS Teams video call or in person is preferred at 2201 Eglinton Ave E Ecosystem 4– previous experience and technical questions.
2nd Panel interview with Architect and Senior manager – 30 mins – Video call – cultural fit and technical skills assessment.
TekStaff may use artificial intelligence (AI) tools as part of the applicant screening process. However, applications will also be reviewed by a member of our Recruitment team to ensure a fair and thorough assessment.
Not the right fit? Search for Dotnet Developer jobs in Toronto, Ontario, Canada
About TekStaff IT Solutions
Just over 15 years ago TekStaff IT Solutions Inc was founded based on the need for a localized, professional staffing firm in the Greater Toronto Area. After gaining much recognition, and achieving a solid reputation, TekStaff has become a leading supplier of placement services. Today, we are acknowledged as a top leader in Canadian recruiting and have crossed borders securing contracts throughout the United States. We remain focused on developing long-term relationships with client companies and professionals looking for employment. At TekStaff, we are proud of our contributions to the business and IT industry and excited to continue assisting individuals with leveraging their careers. TekStaff family thrives in an environment of teamwork and growth. Our client-focused, professional culture focuses on continuous learning and collaboration and provides opportunities for personal and professional development. We value and encourage collegiality and work-life balance. TekStaff IT Solutions Inc. is an equal opportunity employer committed to diversity in the workplace. In addition, TekStaff IT Solutions Inc. is committed to providing accommodations for people with disabilities during the recruitment and selection process. In the event you require any accommodations, please advise us in advance and we will work with you to meet your needs.
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About the role
TekStaff's Client has a current vacancy for ".net developer"
Job Description Typical Day in Role:
- Review existing VB6 application modules to understand current business logic, workflows, and dependencies.
- Translate and rewrite legacy VB6 code into modern C#/.NET Core following current architectural standards and best practices.
- Analyze legacy SQL queries, stored procedures, and data access patterns, then refactor or rebuild them using SQL Server.
- Document legacy functionality and map it to the new technology stack to ensure functional parity during the rewrite.
- Write clean, maintainable, testable C# code that aligns with the new enterprise‑wide modernization framework.
- Perform unit testing and assist with integration testing to validate rewritten components behave consistently with the original system.
- Participate in code reviews to ensure quality, consistency, and adherence to modernization guidelines.
- Troubleshoot issues discovered during the rewrite process and propose improvements to enhance performance, reliability, and maintainability.
- Contribute to ongoing documentation of the new system, including technical specifications, migration notes, and updated architecture diagrams.
- Support the team by identifying gaps, risks, or dependencies in the modernization effort and recommending solutions.
Candidate Requirements/Must Have Skills: 10+ years of hands-on experience with C# and .Net (framework and/or .NET Core) 5+ years of hands-on experience with VB6, including legacy application support and modernization 3+ years of strong SQL Server experience (T-SQL, performance tuning, SSMS, SSRS) Experience designing enterprise-grade, scalable applications using clean architecture Proficiency with development tools such as Visual Studio, Git, Azure DevOps, Bitbucket,
Nice to have requirements Hands-on experience with REST APIs, Web Services, and integration patterns Experience in financial industry Experience with Agile/Scrum methodologies and CI/CD pipelines Exposure to ISO 20022 or financial message transformations Experience with cloud services and DevOps pipelines
Soft Skills: Self-starter that actively engages issues seeking resolution, ability to meet dynamic changes on prioritization Strong problem-solving skills and attention to detail. Excellent communication and collaboration skills. You possess advanced communication (verbal/written/presentation) skills in English
Degrees or certifications: Bachelor's degree in computer science, information technology, or a related field (or equivalent work experience).
1st round – hiring manager, architect, and senior manager – 30- 60 min -MS Teams video call or in person is preferred at 2201 Eglinton Ave E Ecosystem 4– previous experience and technical questions.
2nd Panel interview with Architect and Senior manager – 30 mins – Video call – cultural fit and technical skills assessment.
TekStaff may use artificial intelligence (AI) tools as part of the applicant screening process. However, applications will also be reviewed by a member of our Recruitment team to ensure a fair and thorough assessment.
Not the right fit? Search for Dotnet Developer jobs in Toronto, Ontario, Canada
About TekStaff IT Solutions
Just over 15 years ago TekStaff IT Solutions Inc was founded based on the need for a localized, professional staffing firm in the Greater Toronto Area. After gaining much recognition, and achieving a solid reputation, TekStaff has become a leading supplier of placement services. Today, we are acknowledged as a top leader in Canadian recruiting and have crossed borders securing contracts throughout the United States. We remain focused on developing long-term relationships with client companies and professionals looking for employment. At TekStaff, we are proud of our contributions to the business and IT industry and excited to continue assisting individuals with leveraging their careers. TekStaff family thrives in an environment of teamwork and growth. Our client-focused, professional culture focuses on continuous learning and collaboration and provides opportunities for personal and professional development. We value and encourage collegiality and work-life balance. TekStaff IT Solutions Inc. is an equal opportunity employer committed to diversity in the workplace. In addition, TekStaff IT Solutions Inc. is committed to providing accommodations for people with disabilities during the recruitment and selection process. In the event you require any accommodations, please advise us in advance and we will work with you to meet your needs.