Jobs in Canada

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Added 1 day ago
RC
Senior Software Developer
Randstad Canada
Toronto, ON
- Contract
We are seeking an experienced Senior Software Developer to lead the technical design, development, testing, and sustainment of enterprise-grade web applications using Microsoft .NET…
Added 1 day ago
P
Senior - Full Stack (Java, React, OpenShift)
Procom
Toronto, ON
- $67.5 to $90 CAD / hour
Senior - Full Stack (Java, React, OpenShift):
Added 1 day ago
IG
Senior Developer/Team Lead
Insight Global
Etobicoke, ON
- $105,000 to $127,000 CAD / year
- Contract
This is a hybrid role and requires two days per week onsite in Etobicoke
Added 1 day ago
IG
Full Stack Application Developer
Insight Global
Etobicoke, ON
- $90,000 to $105,000 CAD / year
- Contract
This is a hybrid role and requires two days per week onsite in Etobicoke
Added 1 day ago
T
Full Stack Software Developer
TalentedPeoplePartners
Toronto, ON
- $100,000 to $140,000 CAD / year
- Full-time
- Hybrid
Added 1 day ago
RC
Intermediate Database Administrator
Randstad Canada
Toronto, ON
- Contract
Modern Cloud Stack: Exposure to Azure infrastructure, Microsoft 365, Power Platform, and third-party API integrations.
Added 1 day ago
Lead Software Developer
Open Text Corporation
Richmond Hill, ON
Added 1 day ago
RC
Senior Software Developer
Randstad Canada
Toronto, ON
- Contract
We are seeking an experienced Senior Software Developer to provide hands-on technical leadership, solution architecture, and full-stack application delivery for enterprise CRM, Customer…
Added 1 day ago
RC
Senior Systems Testing/QA Specialist
Randstad Canada
Toronto, ON
- Contract
Development, Debugging & Break/Fix: Hands-on experience with full-stack application development, troubleshooting, debugging, and implementing defect fixes and enhancements (Strictly…
Added 1 day ago
RC
Senior Software Developer
Randstad Canada
Toronto, ON
- Contract
Full-Stack Application Development: Design, code, test, debug, and maintain multi-tier applications using .NET, C#, ASP.NET, AngularJS, WCF, Web API, Entity Framework, and Oracle databases.
Added 1 day ago
EC
Business System Developer
Experis CA
Montréal, QC
- Contract
Design and Development: Design, develop, and maintain full-stack solutions for custom applications using C#, .NET Framework/.NET Core, and ASP.NET MVC.
Added 1 day ago
ND
Senior Backend .Net/GCP Engineer
NTT DATA Canada, Inc
Canada
- Full-time
Operate as a "full-stack" developer with expertise in new and legacy architecture styles
Added 1 day ago
RC
Senior Software Developer
Randstad Canada
Toronto, ON
- Contract
Assignment Type: Onsite (5 days per week)
Added 1 day ago
V
Software Developer (.NETCore and React)
Veriforce
Remote, Canada
- Remote
Veriforce is seeking an experienced full stack developer to help design and develop applications for our SaaS platform. You will join a growing team of talented front-end, back-end, and…
Added 1 day ago
AW
Manager, Software Engineering - 12 Month Temporary
Aviso Wealth
Toronto, ON
- $145,000 to $160,000 CAD / year
- Full-time
…opportunities and coaching to Team Leaders as well as Front-End, Full-Stack and Cloud Engineers reporting into…
Added 1 day ago
B
VBA / .Net Full Stack Developer
BeachHead
Toronto, ON
- $59.43 to $71.32 CAD / hour
- Contract
Working with one of our top financial clients, this role calls for a VBA / .Net Full Stack Developer. The successful candidate will join a dynamic, collaborative environment focused on…
Added 1 day ago
Reopen! .NET Developer - Senior, 13 Month Contract
Dimensional Tech Inc.
Toronto, ON
Demonstrated experience in full life-cycle development and implementation using cloud technologies Microsoft Azure, .NET. C#/MVC, Entity Framework, ReactJS, HTMLS/CS/JavaScript, Azure…
Added 1 day ago
Two Openings! .NET Developer (React) - Senior, 6 Month Contract + Extendable
Dimensional Tech Inc.
Toronto, ON
Strong full-stack development experience, including application architecture, database design, and cloud deployment.
Added 1 day ago
.Net Developer
The Descartes
Waterloo, ON
Descartes Global Trade is seeking a Full Stack Software Engineer to build, modernize, and scale mission critical applications supporting the the compliance and trade domain. This role…
Added 1 day ago
NT
Senior Backend Engineer (.NET, Full-Stack)
NERv Technology Inc. D.B.A. FluidAI Medical
Kitchener, ON
- $130,000 to $140,000 CAD / year
- Full-time
- On-site
We work in a full-stack environment, where engineers own features end-to-end. Alongside backend ownership, this role works directly in our React, Next.js, and React Native codebases. That…
Added 1 day ago
RQ08670 - Software Developer - Full Stack - Senior
Rubicon Path
Toronto, ON
MLITSD Inspector Solution Senior Software Developer Full Stack
Added 1 day ago
RQ08676 - Software Developer - Full Stack - Senior
Rubicon Path
Toronto, ON
Ensuring the entire stack is designed and built for speed and scalability
Added 1 day ago
RQ08619 - Software Developer - Full Stack - Senior
Rubicon Path
Toronto, ON
Full awareness of standards and best practices in preparation of deliverables listed above.
Added 1 day ago
RQ08832 - Software Developer - Full Stack - Junior
Rubicon Path
Toronto, ON
ensuring the entire stack is designed and built for speed and scalability
Added 1 day ago
RQ08992 - Software Developer - Full Stack - Senior
Rubicon Path
Toronto, ON
Resumes must have a maximum of 5 pages

Randstad Canada

Senior Software Developer

Toronto, ON, Canada

Contract

Apply on randstad.ca About employer

Applications open in a new tab.

Job details

Job type: Contract
Apply by: Dec 26, 2026
Posting language: English
Posted: Oct 28, 2026

Original job description

We are seeking an experienced Senior Software Developer to lead the technical design, development, testing, and sustainment of enterprise-grade web applications using Microsoft .NET technologies. In this role, you will be responsible for translating complex business and technical requirements into structured, scalable, and secure software solutions. Leveraging hands-on expertise with C#, ASP.NET, Web APIs, Microsoft Azure services, and SQL Server, you will design robust backend and data-access layers, implement RESTful integrations, optimize database performance, and support deployments across modern cloud and hybrid environments.

Location: Toronto, ON (Fully Onsite – 5 days/week required)

Duration: 9-month contract.

Advantages
Modern .NET & Cloud Stack: Hands-on development across C#, ASP.NET, Web APIs, Microsoft Azure, and SQL Server.

Full SDLC Ownership: Drive end-to-end delivery spanning systems analysis, database design, backend services, and CI/CD automation.

Enterprise Platform Impact: Deliver scalable, secure, and accessible solutions supporting mission-critical operations.

Focused Onsite Collaboration: Work directly alongside architects, developers, and project teams in a dedicated Toronto office.

Responsibilities
Translate technical system specifications and business requirements into working, tested, secure, and maintainable enterprise software applications.

Design, code, unit test, debug, and document multi-tier web applications using C#, ASP.NET, and Web APIs.

Build, configure, and maintain cloud-based solutions and resources on Microsoft Azure (e.g., App Services, Azure SQL, Azure Storage).

Design and optimize relational databases in SQL Server, including data modeling, stored procedures, functions, views, triggers, and query performance tuning.

Implement application integrations and data-exchange mechanisms using RESTful APIs and service-based architecture patterns.

Collaborate with Azure DevOps pipelines for version control, automated builds, testing, and continuous deployment (CI/CD).

Conduct technical design walkthroughs, peer code reviews, and impact assessments to enforce code quality and modern design patterns.

Troubleshoot and resolve complex application, database, and infrastructure issues across development, testing, and production environments.

Support application releases, environment migrations, and platform modernizations.

Ensure application interfaces and components align with enterprise security standards and web accessibility guidelines (AODA/WCAG).

Prepare and maintain comprehensive technical specifications, system architecture documentation, and operational runbooks.

Qualifications
.NET Web Application Development: Strong, hands-on experience designing and developing enterprise-grade web applications utilizing C#, ASP.NET, and Web APIs (Strictly Required).

Microsoft Azure Services: Proven practical experience with Microsoft Azure cloud services, including Azure App Services, Azure SQL, Azure Storage, and Azure DevOps (Strictly Required).

SQL Server & Database Optimization: Strong experience with SQL Server database design, relational data modeling, advanced T-SQL querying, stored procedures, and query performance optimization (Strictly Required).

SDLC & Design Patterns: In-depth knowledge of the full Software Development Life Cycle (SDLC), object-oriented design principles, clean architecture, and modern software design patterns (Strictly Required).

API & Integration Engineering: Hands-on experience developing RESTful services, service-oriented integrations, and secure data-access components (e.g., Entity Framework) (Strictly Required).

Nice-to-Have Assets:
Prior software development experience within a public sector or enterprise environment.

Experience deploying and hosting applications on Windows Server using IIS.

Front-end web development experience using HTML5, CSS, JavaScript, and jQuery.

Familiarity with digital accessibility standards (AODA/WCAG) and secure coding best practices.

Experience with cloud migration strategies and automated CI/CD pipeline configuration.

Summary
If you're interested in the "Senior Software 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 accessibility@randstad.ca to ensure their ability to fully participate in the interview process.

This posting is for existing and upcoming vacancies.

Apply on randstad.ca About employer

More about this job

Responsibilities

The Senior Software Developer will design, build, test and document web applications and databases using C#, ASP.NET and SQL Server, and maintain them in Microsoft Azure. The role also covers integrations, CI/CD releases, troubleshooting and technical documentation.

Requirements

Candidates need hands-on experience with C#, ASP.NET, Web APIs, Azure and SQL Server, plus a deep understanding of the full software development life cycle and design patterns. RESTful integration experience is also required.

Skills

C#
ASP.NET
Web APIs
Microsoft .NET
Microsoft Azure
Azure App Services
Azure SQL
Azure Storage
Azure DevOps
SQL Server
T-SQL
Stored procedures
Query performance tuning
Database design
Entity Framework
RESTful API development
Service-oriented architecture
CI/CD
Unit testing
Code review
SDLC
Object-oriented design
Clean architecture
Design patterns
Troubleshooting

Keywords

Senior Software Developer
C#
ASP.NET
Web APIs
RESTful APIs
Microsoft Azure
Azure App Services
Azure SQL
Azure Storage
Azure DevOps
SQL Server
T-SQL
Entity Framework
CI/CD
SDLC
Clean architecture
Design patterns
IIS
Windows Server
AODA

Seniority

Senior

Tools

Microsoft .NET
C#
ASP.NET
Azure App Services
Azure SQL
Azure Storage
Azure DevOps
SQL Server
Entity Framework
IIS

Languages

English

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Work requirements

Jobs in Canada