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Senior Web Developer Jobs in Whitby, ON (NOW HIRING)

Bits In Glass

Senior .Net Engineer

Toronto, ON · Remote

NET Web Forms/MVC codebases. * Use AI-assisted development tools (e.g., Claude Code) as a core part ... Senior-level, full-stack .NET engineer with software architecture experience. * Strong hands-on ...

Autodesk

Senior AI Developer

Toronto, ON

... Senior AI Developer Position Overview The team is looking for a Principal Software Developer. You ... Excellent knowledge of REST API standards, Graph and web services * Experience taking requirements ...

Lifeworks

Senior Frontend Developer

Toronto, ON · On-site

CA$85K - CA$110K/yr

Design, code, test, and debug cutting-edge web applications using Angular, modern web technologies, and relational databases * Collaborate with designers and back-end developers to translate UI/UX ...

Rogers Communications

Sr. Developer

Toronto, ON · On-site

Senior Developers are responsible for server-side development of next generation products and ... Soap Web services, Spring framework and Spring Boot, Kafka, Git, Maven, Nexus, Bitbucket ...

Konrad

Senior Full Stack Developer

Toronto, ON · Hybrid

CA$120K - CA$145K/yr

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

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Senior Web Developer information

What is a senior web developer?

A senior web developer is a highly skilled computer coding professional with fluency in languages such as HTML, JavaScript, and CSS. In this career, your responsibilities include designing, developing, and debugging the backend of software programs for websites, applications, tools, and databases. You also work with JavaScript frameworks, develop tests using testing frameworks, help build and deploy automation scripts, troubleshoot, and resolve app performance issues. As a senior web developer, you may supervise a team of developers and collaborate with user experience designers to determine what the frontend user experience and website layout will look like during the design phase. Other duties may include enforcing coding standards, reviewing the work completed by your team, managing the budget and project schedule, and communicating directly with clients.

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

To thrive as a Senior Web Developer, you need advanced proficiency in programming languages like JavaScript, HTML, CSS, and backend frameworks, supported by a bachelor’s degree in computer science or equivalent experience. Expertise in tools such as version control (Git), CI/CD pipelines, and knowledge of modern frameworks (React, Angular, Node.js) are typically required, along with relevant certifications. Strong problem-solving ability, effective communication, and leadership skills help you collaborate across teams and mentor junior developers. These competencies ensure high-quality, scalable web solutions and support successful project delivery in dynamic development environments.

What are some common challenges faced by senior web developers when leading project teams?

Senior Web Developers often encounter challenges such as balancing hands-on coding responsibilities with mentoring junior team members and ensuring project deadlines are met. They must also navigate evolving technologies and frameworks, which requires ongoing learning and adaptability. Effective communication with designers, backend developers, and project managers is essential to align technical solutions with business goals. Successfully managing these aspects leads to smoother project delivery and professional growth.

What is the difference between Senior Web Developer vs Web Developer?

AspectSenior Web DeveloperWeb Developer
Required CredentialsBachelor's in CS or related, experience, possibly certificationsBachelor's in CS or related, entry-level or junior experience
Work EnvironmentCollaborates on complex projects, mentors juniorsDevelops websites, learns on the job, less responsibility
Employer & Industry UsageTech companies, agencies, startupsSmall businesses, startups, freelance projects
Search & Comparison IntentUnderstanding senior roles, career progressionEntry-level, learning web development

The main difference between a Senior Web Developer and a Web Developer lies in experience, responsibilities, and expertise. Senior Web Developers handle complex projects, mentor team members, and often have more advanced skills and certifications. Web Developers are typically entry-level or junior roles focused on building websites and gaining experience. Both roles are essential in the tech industry, but the senior position involves greater leadership and technical depth.

More about Senior Web Developer jobs

What are the most commonly searched types of Web Developer jobs in Whitby, ON?

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

Senior Web Developer jobs near you
Infographic showing various Senior Web Developer job openings in Whitby, ON as of August 2026, with employment types broken down into 1% Internship, 80% Full Time, 11% Part Time, 1% Temporary, and 7% Contract. Highlights an 82% Physical, 4% Hybrid, and 14% Remote job distribution.

Senior .Net Engineer

Bits In Glass

Toronto, ON • Remote

Full-time

Posted 9 days ago

Job description

Join a company that’s leading the way in AI and automation consulting. Our portfolio spans 10+ top technologies across business applications, data, process, cloud, and AI. At Bits In Glass, you’ll do meaningful work with a supportive, driven team that loves to collaborate and celebrate wins together. Whether you’re coding, consulting or bringing bold ideas to the table, you’ll tackle real business challenges, grow your skills, and make a BIG impact. 

Our growing team has earned global recognition as a Great Place to Work and received multiple industry partner awards—while keeping things fun and people-focused. If you’re looking to deepen your expertise and solve real-world problems, Bits In Glass could be the place for you. 


We’re hiring two Senior .NET Engineers to support a healthcare industry client on key software development initiatives. The roles will focus on building and enhancing integration solutions, maintaining and modernizing legacy systems, and implementing AI-driven security enhancements across web applications. We’re looking for engineers who are comfortable working across modern and legacy .NET environments and who actively use AI-assisted development tools as part of their daily workflow.

This position is ideal for someone who is systems-oriented, enjoys learning new tools and technologies, and can work effectively both independently and as part of a collaborative team.


Location: Remote (must overlap with 8:00 AM–5:00 PM MST business hours) 


Roles and responsibilities: 

  • Design, build, and maintain C# APIs and web applications, including work on both modern .NET and legacy ASP.NET Web Forms/MVC codebases.
  • Use AI-assisted development tools (e.g., Claude Code) as a core part of your engineering workflow, from implementation to code review.
  • Depending on assignment: contribute to system integration and legacy modernization efforts, or implement security monitoring features (e.g., sensitive-data access alerts) across dozens of production web applications.
  • Build and maintain automated regression test coverage for changes you ship.
  • Collaborate with client engineering teams on code reviews, CI/CD, and production releases.


Required skills and experience: 

  • Senior-level, full-stack .NET engineer with software architecture experience.
  • Strong hands-on experience with C# APIs and web application development, plus working knowledge of legacy ASP.NET Web Forms/MVC.
  • Recent, active experience using AI-assisted development tools (Claude Code or similar).
  • Experience with ASP.NET Core / recent .NET versions, CI/CD pipelines, and SQL Server or Oracle.
  • Comfortable writing or maintaining automated tests (e.g., Playwright) for regression coverage.
  • Strong written and verbal communication skills in English.
  • Able to work from a private, dedicated workspace with secure internet (client security requirement).


Nice to Have

  • Experience with Kafka, Change Data Capture (CDC) patterns, or event-driven architecture.
  • Background in healthcare or other highly regulated industries.
  • Experience modernizing legacy websites/applications.
  • Familiarity with front-end tooling such as HTML, CSS, JavaScript, and Bootstrap.


BIG is a high growth Cloud Consulting firm with offices in Edmonton, Calgary, Toronto, Denver, India and the United Kingdom.  Our clients are in Canada, UK, India  and the US.  We are a team of experienced IT professionals who specialize in providing business value to organizations looking at leveraging modern platforms such as Pega, Appian, MuleSoft and Boomi. Our vast experience in the IT industry and our current track record in enterprise software development, allow us to provide a full range of services to our clients.  Bits In Glass helps organizations of all sizes to automate their businesses and leverage the power of the web and mobile technologies.