Jobs in Vaughan, ON and nearby (72,193 jobs)

Jobs within 25 km of Vaughan, ON, Canada. Nearby towns and cities are included. Distances are straight-line, not driving distances.

72,193 listings · 9,729 employers Counted Nov 14, 2026. How we count

About these jobs

Employers hiring include Husky Technologies (1,704 listings), Loblaw Companies Limited (1,686 listings), Shoppers Drug Mart (1,097 listings).

Common roles: Software engineer, Project manager, Retail sales associate.

11,717 of these listings include employer-provided pay. Open a job to see its currency and pay period.

Advertised starting pay
Pay period	Median starting pay	Listings
CAD / year	90,000.00	6,594
CAD / hour	26.00	4,805
USD / year	159,000.00	60
CAD / week	1,650.00	31
CAD / month	6,000.00	28
CAD / day	101.00	13

Employer-listed minimums from at least 10 listings per currency and pay period. These are advertised starting amounts, not employee salaries. Jobs without a minimum and unusual amounts are excluded.

Workplace classifications: 0% remote, 26% hybrid, 74% on-site, 0% not specified. Hybrid and on-site classifications may be inferred from descriptions. Check the original ad.

Based on the dated count above. Listings can change. How we count

Jobs in Vaughan, ON and nearby

Within 25 km

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Flexstaf IT

Senior Web Developer

Toronto, ON, Canada

Apply on careers-page.com About employer

Applications open in a new tab.

Job details

Apply by: Dec 12, 2026
Experience: Experience: 5+ years of professional software development experience with C#, ASP.NET, Web Services, and Microsoft SQL Server.
Posting language: English
Posted: Aug 27, 2026

Original job description

We are seeking an experienced Web Services & Application Developer with strong C#, ASP.NET, and SQL Server capabilities to maintain, modernize, and enhance legacy web applications, REST services, and SOAP web services. In this role, you will bridge the gap between web application maintenance and backend service integration, ensuring system stability, building secure APIs, and optimizing complex database workflows.

Key Responsibilities

Application & API Development: Design, build, and maintain Web API services, REST Services, SOAP web services, and existing ASP.NET applications using C#, .NET Framework, HTML5, CSS3, JavaScript, and AJAX.

Service Integration & Modernization: Develop and consume RESTful APIs and SOAP/WCF web services to enable seamless integration across enterprise platforms and legacy architectures.

Backend Data Engineering: Write complex SQL queries, stored procedures, user-defined functions, triggers, and views in T-SQL, optimizing database performance and data exchange workflows.

Legacy Refactoring & Security: Identify performance bottlenecks in web applications and web services; refactor and optimize C# code and database scripts for performance, scalability, and security (e.g., OWASP compliance, SQL injection prevention).

System Support & Integration: Support system integration testing, debug web service communication, resolve production issues, and document technical architecture and API endpoints.

Required Qualifications

Experience: 5+ years of professional software development experience with C#, ASP.NET, Web Services, and Microsoft SQL Server.

Core Tech Stack: Deep proficiency in C#, ASP.NET, REST Services (Web API), and SOAP Services (WCF / ASMX), alongside front-end fundamentals (JavaScript, jQuery, HTML5, CSS3).

Web Services & API Design: Strong hands-on experience designing, consuming, and securing RESTful JSON endpoints and XML-based SOAP contracts (WSDL, XSD, SOAP envelopes).

T-SQL Mastery: Advanced skills in writing and optimizing complex T-SQL queries, stored procedures, execution plans, and database indexing to support service payloads.

Version Control: Experience with Git, Azure DevOps, or Team Foundation Server (TFS).

Preferred Qualifications

Experience migrating legacy ASP.NET applications and SOAP services to modern frameworks (ASP.NET Core, RESTful microservices, Angular, or React).

Deep understanding of IIS server configuration, SSL/TLS certificates, and API security authentication models (OAuth 2.0, JWT, API Keys, Basic Auth).

Knowledge of cloud platforms (Azure Web Apps, Azure API Management, Azure SQL) or C# unit testing frameworks (xUnit, NUnit, Moq).

Apply on careers-page.com About employer

More about this job

Responsibilities

The Senior Web Developer at Flexstaf IT will build and maintain APIs and web applications, connect systems through web services, and tune database queries and code for speed and security. They will also support system testing, fix production issues and document the architecture.

Requirements

Candidates need 5+ years of professional software development with C#, ASP.NET, web services and Microsoft SQL Server. They must have strong T-SQL skills, hands-on REST and SOAP experience, front-end basics and version control experience.

Skills

C#
ASP.NET
ASP.NET Web API
.NET Framework
REST services
SOAP services
WCF
ASMX
WSDL
XSD
T-SQL
SQL Server
stored procedures
execution plans
database indexing
JavaScript
jQuery
HTML5
CSS3
AJAX
Git
Azure DevOps
Team Foundation Server
IIS
SSL/TLS

Keywords

C#
ASP.NET
ASP.NET Web API
REST API
SOAP
WCF
ASMX
SQL Server
T-SQL
stored procedures
Git
Azure DevOps
Team Foundation Server
web services
legacy modernization
backend developer
.NET Framework
web application developer
API developer
database developer

Seniority

Senior

Tools

SQL Server
Git
Azure DevOps
Team Foundation Server
IIS
Azure Web Apps
Azure API Management
Azure SQL

Languages

English

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Jobs in Vaughan, ON and nearby