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Web Application Developer Intern Jobs in Whitby, ON

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 ...

... web-based ERP software for homebuilders, using AI-assisted development throughout the SDLC ... Study and understand the application's functionality, workflow, and design. * Work with the team to ...

... industry Web application development experience, building consumer or business facing products ... engineers. * Ability to keep up-to-date with new technologies to understand what should be ...

Developer Relations Intern

Toronto, ON ยท Remote

CA$8 - CA$16/hr

Role Summary We are looking for a passionate Developer Relations Intern to join our global DevRel ... in application materials based on available information. These tools assist our recruitment team ...

Java Developer

Toronto, ON ยท Hybrid

CA$90K - CA$125K/yr

About The Role As a Full Stack Java Developer you'll be tasked with working on web application development in Java and Spring Boot. Working within the software development team, your duties will ...

Full Stack Developer

Toronto, ON ยท Hybrid

CA$90K - CA$120K/yr

About The Role As a Full Stack Developer you'll be tasked with working on one of our web application projects. Working within the software development team, your duties will require you to assist in ...

Senior Java Developer

Toronto, ON ยท Hybrid

CA$120K - CA$145K/yr

About The Role As a Full Stack Java Developer you'll be tasked with working on web application development in Java and Spring Boot. Working within the software development team, your duties will ...

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Web Application Developer Intern information

What does a web application developer intern do?

A Web Application Developer Intern assists in creating and maintaining web-based software applications. They often work alongside experienced developers to write code, fix bugs, and test features. Interns may use programming languages such as HTML, CSS, JavaScript, and frameworks like React or Angular. Their role provides hands-on experience with the full software development lifecycle and helps them build practical technical skills for future careers.

What types of projects and technologies can I expect to work with as a web application developer intern?

As a Web Application Developer Intern, you can expect to work on a variety of projects ranging from building new features for existing web applications to fixing bugs and improving user interfaces. Interns often collaborate with front-end and back-end developers, gaining hands-on experience with technologies such as HTML, CSS, JavaScript, and frameworks like React or Angular. You'll also have opportunities to participate in code reviews and agile development cycles, allowing you to learn best practices and work within a structured team environment. These experiences are designed to help you build a strong technical foundation and prepare for more advanced roles in web development.

What are the key skills and qualifications needed to thrive as a web application developer intern, and why are they important?

To thrive as a Web Application Developer Intern, you need a solid understanding of programming languages such as HTML, CSS, JavaScript, and familiarity with web frameworks, often supported by coursework in computer science or related fields. Experience with version control systems like Git and exposure to development tools or environments such as Visual Studio Code are typically expected. Strong problem-solving abilities, attention to detail, and a willingness to learn make an intern stand out in this position. These skills and qualities are important because they enable effective contribution to development teams, rapid adaptation to new technologies, and the delivery of high-quality code.

What is the difference between Web Application Developer Intern vs Software Developer Intern?

AspectWeb Application Developer InternSoftware Developer Intern
Required SkillsHTML, CSS, JavaScript, basic backend knowledgeProgramming languages like Java, C++, Python
Work EnvironmentWeb development teams, front-end/back-end projectsGeneral software development across various platforms
Industry UsageTech companies, startups focusing on web appsBroader tech industry, including app and software firms

The main difference is that Web Application Developer Interns focus on building and maintaining websites and web-based applications, requiring skills in web technologies. Software Developer Interns have a broader scope, working on various software projects using programming languages. Both roles are entry-level, often require similar certifications or coursework, and are common in tech industries. The choice depends on whether you prefer web-specific development or general software development.

What cities near Whitby, ON are hiring for Web Application Developer Intern jobs?

Cities near Whitby, ON with the most Web Application Developer Intern job openings:

Senior Web Developer

Flexstaf IT

Toronto, ON โ€ข On-site

Full-time

Posted 11 days ago


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)