Posted 2 months ago
Senior Developer
@ Randstad Canada
Toronto, Ontario
SIGNALS
Overview
Randstad Canada is hiring a Senior Developer on a 3-month contract (extendable) in Toronto, hybrid with 2 to 3 days onsite per week. The role leads .NET application upgrades, Oracle 12c to SQL Server database migrations, SSIS data pipelines and enterprise reporting integration across Crystal Reports, BusinessObjects Enterprise and Power BI.
Pay:
$65.12–$71.80 an hour
Responsibilities:
- Upgrade .NET applications and lead Oracle 12c to SQL Server migrations
- Build SSIS packages and automated data integration pipelines
- Develop and integrate Crystal Reports, BOE and Power BI reports
- Provide defect remediation across SIT, QA and UAT phases
- Author runbooks and deliver coaching to junior developers
Requirements summary:
- Extensive ASP.NET Core and enterprise API development experience
- Proven Oracle and SQL Server migration experience
- Strong SSIS and data pipeline background
- Hands-on Crystal Reports, BOE and Power BI experience
- Microsoft .NET Developer certification is a strong asset
Tools & skills
Source and dates
Employer career site / ATS feed · careerpage
- Employer posting date
- 2026-08-26
- First seen by our source
- 2026-10-10
- Source record updated
- 2026-10-10
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Senior |
| Department | Software development |
| Travel | air: none · ground: none |
| Work setting | Office |
| Position | Mostly sitting |
| Physical demands | physical low · computer high |
| Languages | English |
| Encouraged to apply | Women, Indigenous peoples, People with disabilities, Racialized people, 2SLGBTQ+ |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Randstad Canada
Saved company profile
Historical company information from a saved The Jobs API profile (LinkedIn/Crunchbase fields). It is not live-verified; figures may have changed. Missing values remain unknown.
partner for talent.
Full company description
As the Canadian leader in recruitment and HR, and one of Canada’s best places to work, we have a uniquely human approach to work. We deliver HR innovation with human interaction at its core. At the unique intersection of technology and humanity, we deliver data-driven insights coupled with a people-first experience that is inherently human. Human Forward. Learn more at www.randstad.ca.
- LinkedIn followers
- 455,966
- People associated on LinkedIn
- 1,207
- Reported office locations
- 777 Bay Street, Suite 2000, PO Box 128, Toronto, ON M5G 2C8, CA
- 525 Avenue Viger Ouest, Suite 501, Montréal, Quebec H2Z 1G6, CA
- 4295 King St E, Suite 401, Kitchener, Ontario N2P 0C6, CA
- 311 6 Ave SW, Intact Place, East Tower, Suite 1640, Calgary, AB T2P 3H2, CA
- 6345 Dixie Rd, Suite 6, Mississauga, ON L5T 2E6, CA
- 244 Pall Mall St, Suite 400, London, ON N6A 5P6, CA
- 4 Cedar Pointe Dr, Unit D, Barrie, Ontario L4N 5R7, CA
- 2456 Queen St E, Unit 201, Brampton, Ontario L6S 5X9, CA
- 10 Stanley St, Suite 4A, Brantford, Ontario N3S 7N4, CA
- 7055 Boulevard Taschereau, Suite 100, Brossard, Quebec J4Z 1A7, CA
- 1100 Walkers Line, Suite 105, Burlington, Ontario L7N 2G3, CA
- 10655 Southport Rd SW, Suite 1200, Calgary, Alberta T2W 4Y1, CA
- 495 36 St NE, Suite 140, Calgary, Alberta T2A 6K3, CA
- 321 6 Ave SW, Suite W940 (West Tower), Calgary, Alberta T2P 0B2, CA
- 415 Hespeler Rd, Unit 3A, Cambridge, Ontario N1R 6J1, CA
- 6001 60 Ave, Delta, British Columbia V4K 4E2, CA
- 787 Rue St-Pierre, Suite 303, Drummondville, Quebec J2C 3X2, CA
- 10025 102A Ave NW, Suite 1902, Edmonton, Alberta T5J 2Z2, CA
- 2305 111 St NW, Edmonton, Alberta T6J 5E5, CA
- 5 Boulevard Mountain, Granby, Quebec J2G 9M5, CA
- 450 Speedvale Ave W, Unit 103, Guelph, Ontario N1H 7Y6, CA
- 1809 Barrington St, CIBC Building, Unit 501, Halifax, Nova Scotia B3J 3K8, CA
- 275 James St N, Unit 2, Hamilton, Ontario L8R 2L4, CA
- 7655 Boulevard Newman, Suite 75, Montreal, Quebec H8N 1X7, CA
- 2530 Boulevard Daniel-Johnson, Laval, Quebec H7T 2R3, CA
- 2528 Boulevard Daniel-Johnson, Laval, Quebec H7T 2R3, CA
- 5410 Boulevard Guillaume-Couture, Suite 84, Lévis, Quebec G6V 4Z2, CA
- 460 Rue St-Charles O, Suite A, Longueuil, Quebec J4Z 1A7, CA
- 80 Tiverton Ct, Suite 400, Markham, Ontario L3R 0G4, CA
- 7357 Woodbine Ave, Suite 2, Markham, Ontario L3R 1A7, CA
- 4080 Confederation Pkwy, Suite 501, Mississauga, Ontario L5B 0G1, CA
- 6345 Dixie Rd, Suite 6, Mississauga, Ontario L5T 2E6, CA
- 809 Columbia St, New Westminster, British Columbia V3M 1B9, CA
- 20 York Mills Rd, Unit 208, Toronto, Ontario M2P 2C2, CA
- 1600 Carling Ave, Suite 410, Ottawa, Ontario K1Z 1G3, CA
- 2222 Carling Ave, Suite 2, Ottawa, Ontario K2A 1H3, CA
- 4810 Boul Saint-Jean, Montréal, Quebec H9H 4B2, CA
- 755 Boulevard Saint-Jean, Suite 130, Pointe-Claire, Quebec H9R 5M9, CA
- 815 Boulevard Lebourgneuf, Suite 201, Québec, Québec G2J 0C1, CA
- 2010 11th Ave, 7th Floor, Regina, Saskatchewan S4P 0J3, CA
- 208 Boulevard du Curé-Labelle, Sainte-Thérèse, Quebec J7E 2X7, CA
- 3500 Boulevard de la Côte-Vertu, Suite 175, Saint-Laurent, Quebec H4R 2X7, CA
- 6335 Rue Jean-Talon Est, Saint-Léonard, Quebec H1S 3E7, CA
- 310 Wall St, Saskatoon, Saskatchewan S7K 1N7, CA
- 124 Rue Wellington Nord, Suite 300, Sherbrooke, Quebec J1H 5X8, CA
- 701 W Georgia St, Suite 200, Vancouver, British Columbia V7Y 1C6, CA
- 730 View St, Suite 420, Victoria, British Columbia V8W 3Y7, CA
- 100 Regina St S, Suite 140, Waterloo, Ontario N2J 4P9, CA
- 114 Dundas St E, Unit 103, Whitby, Ontario L1N 2H7, CA
- 245 Portage Ave, Winnipeg, Manitoba, CA
- 1 Lombard Pl, Suite 1535, Winnipeg, Manitoba R3B 0X3, CA
- 386 Boulevard Charest E, Quebec, QC G1K 3H4, CA
- Other recorded names
- Randstad Canada
- Specialties
- HR Consulting
- IT Recruitment
- Engineering Recruitment
- Staffing and HR
- HR Services
- Recruitment
- HR Outsourcing
- Temporary Hiring
- Permanent Hiring
- Recruiting
- Permanent Jobs
- Temp Jobs
- Hiring Strategy
- Human Resources
- Staffing
- Finding Jobs
- Employer Branding
- Jobs
- and Contract Jobs
- Profile identifies a recruitment agency
- Yes
As the Canadian leader in recruitment and HR, and one of Canada’s best places to work, we have a uniquely human approach to work. We deliver HR innovation with human interaction at its core. At the unique intersection of technology and humanity, we deliver data-driven insights coupled with a people-first experience that is inherently human. Human Forward. Learn more at www.randstad.ca.
| Field | Value |
|---|---|
| Industry | Staffing and Recruiting |
| Company size | 501-1,000 employees |
| Headquarters | Toronto, ON |
| Organization type | Public Company |
| Year founded | 1997 |
| Specialties | HR ConsultingIT RecruitmentEngineering RecruitmentStaffing and HRHR ServicesRecruitmentHR OutsourcingTemporary HiringPermanent HiringRecruiting |
| Open jobs on Jobsy | 9,353 |
| View page |
Job description
We are seeking a highly accomplished Senior Developer for an enterprise-level contract opportunity based in Toronto. In this role, you will take on a premier software engineering and database modernization capacity, specializing in full-stack .NET application development, database migrations, and enterprise reporting integration.
As a principal developer, you will bridge the gap between complex legacy systems, modern cloud-ready database architectures, and operational support teams. Operating within a hybrid work model, you will lead application upgrades to modern .NET frameworks, execute database migrations from Oracle to SQL Server, build automated data integration pipelines using SSIS, and remediate defects identified during Quality Assurance (QA) and User Acceptance Testing (UAT). This position demands a seasoned technical authority who can optimize application performance, author comprehensive operational support documentation, and deliver structured coaching and knowledge transfer to junior developers and operational staff.
Location: Toronto, ON
Assignment Type: Hybrid (2 to 3 days per week onsite)
Contract Duration: 3-month contract (with potential for extension
Advantages
Full-Stack Modernization Scope: Direct high-visibility application upgrades transitioning projects to modern .NET and SQL Server environments.
Database & Data Pipeline Architecture: Lead database migrations from Oracle 12c to SQL Server, developing SSIS packages and data transformation workflows.
Multi-Platform Analytics Integration: Build and integrate enterprise reports using Crystal Reports, BusinessObjects Enterprise (BOE), and Power BI.
Capacity Building & Leadership: Conduct structured coaching, training, and technical knowledge transfer to strengthen internal developer teams.
Responsibilities
Design, code, test, and implement application enhancements and system modernization initiatives.
Execute end-to-end database migrations from legacy Oracle 12c environments to SQL Server Enterprise databases.
Upgrade core application frameworks to modern .NET standards, ensuring performant, secure, and maintainable codebases.
Design, build, and optimize SSIS packages, interfaces, and automated data integration processes.
Develop, convert, and integrate enterprise reports using Crystal Reports, BusinessObjects Enterprise (BOE), and Power BI.
Provide dedicated technical support and defect remediation across System Integration Testing (SIT), Quality Assurance (QA), and User Acceptance Testing (UAT) phases.
Perform deep technical troubleshooting, debugging, and query optimization to resolve application and database bottlenecks.
Support initial production implementations, phase enhancements, and post-go-live stabilization.
Author comprehensive technical system support documentation, operational runbooks, and technical troubleshooting guides.
Deliver structured coaching, training sessions, and technical knowledge transfer to junior developers and operational support teams for long-term system sustainability.
Qualifications
Core Technical & Engineering Requirements
Full-Stack .NET Expertise: Extensive experience developing enterprise web applications and APIs using ASP.NET Core, ASP.NET Web APIs/REST APIs, and ASP.NET Core MVC.
Framework Upgrades & Development: Hands-on experience developing with Microsoft .NET frameworks, including upgrading applications across major framework versions.
Database Migration & SQL Mastery: Proven experience with Oracle 19c/12c and SQL Server, including direct project experience migrating databases from Oracle to SQL Server Enterprise editions.
Data Integration & SSIS: Strong background developing SQL Server Integration Services (SSIS) packages, data pipelines, and complex data migration workflows.
Reporting Ecosystem: Hands-on experience converting and integrating Seagate Crystal Reports with BusinessObjects Enterprise (BOE) and building Power BI reports.
UI Frameworks & Testing: Proficiency using modern UI frameworks (such as Telerik UI) and operating within structured QA, UAT, and production release processes.
Preferred Assets & Certifications
Certifications: Microsoft .NET Developer certifications are considered a strong asset.
Security & Front-End Frameworks: Experience with OWASP security testing methodologies and JavaScript frameworks (such as Angular).
Domain Exposure: Background developing sales, inventory management, or costing platforms is an asset.
Soft Skills & Collaboration
Analytical Problem Solving: Superior diagnostic, debugging, and performance optimization capabilities to resolve complex technical defects.
Mentorship & Communication: Outstanding verbal and written communication skills with a proven track record of authoring technical documentation and mentoring junior technical staff.
Summary
If you're interested in the "Senior Developer" role based in Toronto, we encourage you to apply online at www.randstad.ca.
Only qualified candidates will be contacted for the next steps. We look forward to hearing from you!
Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.
Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to [email protected] to ensure their ability to fully participate in the interview process.
This posting is for existing and upcoming vacancies.
As a principal developer, you will bridge the gap between complex legacy systems, modern cloud-ready database architectures, and operational support teams. Operating within a hybrid work model, you will lead application upgrades to modern .NET frameworks, execute database migrations from Oracle to SQL Server, build automated data integration pipelines using SSIS, and remediate defects identified during Quality Assurance (QA) and User Acceptance Testing (UAT). This position demands a seasoned technical authority who can optimize application performance, author comprehensive operational support documentation, and deliver structured coaching and knowledge transfer to junior developers and operational staff.
Location: Toronto, ON
Assignment Type: Hybrid (2 to 3 days per week onsite)
Contract Duration: 3-month contract (with potential for extension
Advantages
Full-Stack Modernization Scope: Direct high-visibility application upgrades transitioning projects to modern .NET and SQL Server environments.
Database & Data Pipeline Architecture: Lead database migrations from Oracle 12c to SQL Server, developing SSIS packages and data transformation workflows.
Multi-Platform Analytics Integration: Build and integrate enterprise reports using Crystal Reports, BusinessObjects Enterprise (BOE), and Power BI.
Capacity Building & Leadership: Conduct structured coaching, training, and technical knowledge transfer to strengthen internal developer teams.
Responsibilities
Design, code, test, and implement application enhancements and system modernization initiatives.
Execute end-to-end database migrations from legacy Oracle 12c environments to SQL Server Enterprise databases.
Upgrade core application frameworks to modern .NET standards, ensuring performant, secure, and maintainable codebases.
Design, build, and optimize SSIS packages, interfaces, and automated data integration processes.
Develop, convert, and integrate enterprise reports using Crystal Reports, BusinessObjects Enterprise (BOE), and Power BI.
Provide dedicated technical support and defect remediation across System Integration Testing (SIT), Quality Assurance (QA), and User Acceptance Testing (UAT) phases.
Perform deep technical troubleshooting, debugging, and query optimization to resolve application and database bottlenecks.
Support initial production implementations, phase enhancements, and post-go-live stabilization.
Author comprehensive technical system support documentation, operational runbooks, and technical troubleshooting guides.
Deliver structured coaching, training sessions, and technical knowledge transfer to junior developers and operational support teams for long-term system sustainability.
Qualifications
Core Technical & Engineering Requirements
Full-Stack .NET Expertise: Extensive experience developing enterprise web applications and APIs using ASP.NET Core, ASP.NET Web APIs/REST APIs, and ASP.NET Core MVC.
Framework Upgrades & Development: Hands-on experience developing with Microsoft .NET frameworks, including upgrading applications across major framework versions.
Database Migration & SQL Mastery: Proven experience with Oracle 19c/12c and SQL Server, including direct project experience migrating databases from Oracle to SQL Server Enterprise editions.
Data Integration & SSIS: Strong background developing SQL Server Integration Services (SSIS) packages, data pipelines, and complex data migration workflows.
Reporting Ecosystem: Hands-on experience converting and integrating Seagate Crystal Reports with BusinessObjects Enterprise (BOE) and building Power BI reports.
UI Frameworks & Testing: Proficiency using modern UI frameworks (such as Telerik UI) and operating within structured QA, UAT, and production release processes.
Preferred Assets & Certifications
Certifications: Microsoft .NET Developer certifications are considered a strong asset.
Security & Front-End Frameworks: Experience with OWASP security testing methodologies and JavaScript frameworks (such as Angular).
Domain Exposure: Background developing sales, inventory management, or costing platforms is an asset.
Soft Skills & Collaboration
Analytical Problem Solving: Superior diagnostic, debugging, and performance optimization capabilities to resolve complex technical defects.
Mentorship & Communication: Outstanding verbal and written communication skills with a proven track record of authoring technical documentation and mentoring junior technical staff.
Summary
If you're interested in the "Senior Developer" role based in Toronto, we encourage you to apply online at www.randstad.ca.
Only qualified candidates will be contacted for the next steps. We look forward to hearing from you!
Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.
Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to [email protected] to ensure their ability to fully participate in the interview process.
This posting is for existing and upcoming vacancies.
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