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Full Stack Web Mobile Developer Jobs in Ontario (NOW HIRING)

1Valet

Senior Full-Stack Developer

Toronto, ON · Remote

Senior Full-Stack Developer Location: Ottawa, ON (Remote) About the Role We are looking for a ... Angular .NET / C# (Web APIs, services) MS/Azure SQL (schema design, performance tuning ...

StackandCo

Senior Full Stack Developer

Galway, NY · On-site

Embrace emerging technologies and keep abreast of new frameworks, tools and programming languages ... In\-depth experience with several full stack technologies such as Spring, Spring\-Boot, Spring\-Web ...

Maarut

CA$1 - CA$11/hr

Proficient with mobile, front end and back end development, including any associated areas such as ... Excellent knowledge of front-end web programming languages, such as HTML, CSS, JavaScript, and ...

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Full Stack Web Mobile Developer information

What is a full stack web mobile developer?

A Full Stack Web Mobile Developer is a software professional skilled in both front-end and back-end development for web and mobile applications. They can design, build, and maintain the entire technology stack, including user interfaces, servers, databases, and sometimes even deployment infrastructure. Full Stack Web Mobile Developers are proficient in various programming languages and frameworks, such as JavaScript, React, Node.js, and mobile technologies like React Native or Flutter. Their versatility allows them to work on all aspects of a project, from initial concept to final implementation.

What are the key skills and qualifications needed to thrive as a full stack web mobile developer?

To thrive as a Full Stack Web Mobile Developer, you need strong proficiency in front-end and back-end programming languages (such as JavaScript, HTML/CSS, Node.js, and frameworks like React or Angular), along with a degree in computer science or related experience. Familiarity with databases (SQL/NoSQL), version control systems (like Git), and mobile development tools (such as React Native or Flutter) is typically required. Problem-solving ability, teamwork, and effective communication are crucial soft skills for collaborating with stakeholders and adapting to project needs. These skills and qualities are vital for delivering robust, user-friendly, and scalable web and mobile applications in a fast-evolving tech landscape.

What are some typical challenges full stack web mobile developers face when working on cross-platform projects?

Full Stack Web Mobile Developers often encounter challenges related to ensuring consistent functionality and appearance across different platforms and devices. Testing and debugging can be complex, as issues may only appear on specific operating systems or screen sizes. Effective communication with designers, backend engineers, and QA specialists is essential to identify and resolve platform-specific bugs quickly. Staying updated with evolving frameworks and libraries is also crucial, as technology changes frequently in this field.

What cities in Ontario are hiring for Full Stack Web Mobile Developer jobs?

Cities in Ontario with the most Full Stack Web Mobile Developer job openings:

Infographic showing various Full Stack Web Mobile Developer job openings in Ontario as of August 2026, with employment types broken down into 1% As Needed, 65% Full Time, 26% Part Time, 7% Contract, and 1% Nights. Highlights an 94% Physical, 1% Hybrid, and 5% Remote job distribution.

Senior Full-Stack Developer

Markham, ON • On-site

Common CENTS Solutions
Traveler Accommodation • 11 - 50 employees
Learn more about Common CENTS Solutionsexternal

CA$95K - CA$105K/yr

Full-time

Posted 9 days ago

Key responsibilities

  • Design, develop, and maintain scalable enterprise applications across web, API, and cloud platforms.

  • Build modern front-end applications using Angular and React.

  • Develop backend services and APIs using C#, .NET, and ASP.NET Core.

Job description

                                                                                    Job Description: 
Senior Full-Stack Developer
Location: Hybrid (Full-Time)Note: This role requires 1-2 times monthly to our Markham, ON office.
Department: R&D
Reports To: Development Manager / Director of Engineering

Salary Range: $95,000 - $105,000 CAD

About Premier Construction Software

Premier Construction Software is a leading cloud-based ERP platform serving the construction industry. Our platform combines financial management, project management, mobile solutions, reporting, integrations, AI-enabled capabilities, and modern cloud infrastructure to help construction companies operate more efficiently.

We are looking for a highly experienced Senior Full-Stack Developer who thrives in a fast-paced environment and enjoys solving complex business and technical challenges. You will play a key role in designing, developing, and evolving our cloud-native SaaS platform while helping shape the future of AI-driven software delivery.

Key Responsibilities
  • Design, develop, and maintain scalable enterprise applications across web, API, and cloud platforms.
  • Build modern front-end applications using Angular and React.
  • Develop backend services and APIs using C#, .NET, and ASP.NET Core.
  • Design and optimize SQL Server databases, queries, and stored procedures.
  • Contribute to architecture decisions, technical design reviews, and development standards.
  • Build and consume RESTful APIs and third-party integrations.
  • Develop cloud-native solutions within Microsoft Azure.
  • Participate in code reviews, mentoring, and engineering best practices.
  • Collaborate closely with Product, QA, Support, and DevOps teams.
  • Troubleshoot complex production issues and implement sustainable solutions.
  • Leverage AI-assisted development tools to improve productivity, quality, and delivery speed.
  • Support CI/CD pipelines and automated deployment processes through Azure DevOps.
Required QualificationsTechnical Skills
  • 7+ years of professional software development experience.
  • Strong expertise in:
    • C#
    • .NET / ASP.NET Core
    • SQL Server
    • REST APIs
    • Entity Framework
    • Azure Cloud Services
  • Strong front-end experience with:
    • Angular
    • TypeScript
    • HTML5
    • CSS/LESS
  • Experience developing scalable SaaS applications.
  • Experience with Azure DevOps, source control, pipelines, and release management.
  • Strong knowledge of software architecture and design patterns.
  • Experience performing code reviews and mentoring developers.
What Success Looks Like

Within your first 90 days, you will:

  • Become productive within the Premier codebase.
  • Contribute features and bug fixes across Cloud, Mobile, API, and Add-on platforms.
  • Participate in architecture discussions and technical reviews.
  • Demonstrate strong ownership and accountability for deliverables.
  • Embrace AI-assisted development practices and engineering excellence standards.
Preferred Characteristics
  • Strong problem-solving skills.
  • Excellent communication and collaboration abilities.
  • Bias for action and continuous improvement.
  • Ability to work independently while supporting team success.
  • Passion for modern software engineering and emerging AI technologies.
  • Comfortable working in a globally distributed development team.
Technology Stack

Backend

  • C#
  • .NET / ASP.NET Core
  • SQL Server
  • Entity Framework
  • REST APIs
  • OData

Frontend

  • Angular
  • React
  • TypeScript
  • JavaScript
  • HTML5
  • CSS / LESS

Cloud & DevOps

  • Microsoft Azure
  • Azure App Services
  • Azure SQL
  • Azure Storage
  • Azure DevOps
  • CI/CD Pipelines

AI & Productivity

  • Cursor AI
  • GitHub Copilot
  • Microsoft Copilot
  • Azure OpenAI

Development Tools

  • Visual Studio 2022
  • SQL Server Management Studio
  • Postman
  • Azure Storage Explorer
                                                                                    Business Unit: Premier                                                                                    Scheduled Weekly Hours:37.5                                                                                    Number of Openings Available: 1                                                                                    Worker Type: Regular More About Jonas Software:

Jonas Software is a leading provider of enterprise management software solutions, serving a wide range of vertical markets including hospitality, healthcare, construction, education, personal care, fitness, leisure, moving and legal services, to name a few. Within these markets, Jonas is comprised of over 65 distinct brands, each a respected leader in its domain.

Jonas' vision is to be the branded global leader across these verticals and to be recognized by customers and industry stakeholders as the trusted provider of "Software for Life." We are committed to technology, product innovation, quality, and exceptional customer service.

Jonas Software supports over 60,000 customers in more than 30 countries. We employ over 6,000 skilled professionals, including industry experts and technology specialists. Across our broader network, we support a global workforce of more than 30,000 employees.

Headquartered in Canada, Jonas Software has a global footprint with offices around the world. We're a 100% owned subsidiary of Constellation Software Inc., based in Toronto, publicly listed on the TSX (CSU.TO), and a member of the S&P/TSX 60 Index.

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