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Python Application Developer Jobs in Ontario (NOW HIRING)

Bayview Asset Management

Application Developer

Toronto, ON · On-site

CA$110K - CA$150K/yr

POSITION SUMMARY Bayview is seeking a Application Developer to develop applications that integrate ... Design, build, and maintain full-stack applications using Python and modern frontend frameworks (e ...

McMillan LLP

Enterprise Application Developer

Toronto, ON · Hybrid

CA$100K - CA$120K/yr

The Enterprise Application Developer is responsible for defining, designing, developing ... Java, JavaScript, PHP, C#, C/C++, Python, ASP.NET * 3+ years of experience developing RESTful APIs ...

Scotiabank

Senior Application Developer

Toronto, ON · On-site

The position is for a Senior Application Developer within the Group Treasury-Liquidity Risk group ... Python, PySpark, or Scala * 5+ years hands-on experience with RDBMS Systems Server. Postgres ...

TMX Group

Senior C++ Application Developer

Toronto, ON · Hybrid

We value developers who stay efficient by leveraging AI agentic tools to speed up their workflow ... Develop sophisticated scripts (Python, Bash) to automate repetitive tasks, optimize CI/CD pipelines ...

StackandCo

Python Developer

Galway, NY · On-site

\n \n \n \n \n Our client, an industry leading company, is looking for a talented Python Developer ... of the application, from writing database queries to developing the REST API to serve the ...

StackandCo

\n \n \n \n \n Our client, an industry leading company, is looking for a talented Python Developer ... of the application, from writing database queries to developing the REST API to serve the ...

TMX Group

Senior Application Developer

Toronto, ON · On-site

We are seeking a highly skilled C++ Developer to design, build, and optimize high-performance ... Python * SQL (Oracle) * Bitbucket * JIRA * Confluence * Co-pilot In addition, we are looking for ...

Atyeti Inc

Sr Python Developer

Toronto, ON

... using Python. * Collaborate with cross-functional teams including frontend, DevOps, and QA to ... Optimize application performance and scalability. * Write clean, maintainable, and well-documented ...

ArcelorMittal

App. Data & BI Developer

Concord, ON · On-site +1

$115K/yr

Application Development & Enhancements * Design, develop, and enhance .NET MVC applications ... Support and extend Python-based automation processes and data workflows. * Implement and maintain ...

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Python Application Developer information

What is the difference between Python Application Developer vs Python Software Engineer?

AspectPython Application DeveloperPython Software Engineer
Required CredentialsBachelor's in CS or related field, Python certificationsBachelor's or higher in CS, Python certifications often preferred
Work EnvironmentDevelops specific applications, often client-focusedDesigns and develops software solutions, broader scope
Employer & Industry UsageTech companies, startups, enterprise softwareTech firms, software companies, consulting
Common Search & ComparisonFocuses on application development tasksEncompasses broader software engineering roles

Python Application Developers primarily focus on creating specific applications using Python, often working closely with clients or project teams. Python Software Engineers typically have a broader role, including designing, developing, and maintaining complex software systems. While both roles require similar credentials and work environments, the Application Developer role is more targeted towards application creation, whereas the Software Engineer may handle a wider range of software development tasks.

What are some common challenges Python Application Developers face when working on large-scale projects?

Python Application Developers often encounter challenges such as managing complex codebases, ensuring consistent code quality, and optimizing application performance as projects grow in size. Collaborating with cross-functional teams and integrating various third-party libraries can also introduce compatibility issues or technical debt. To address these challenges, developers typically follow best practices like using version control, implementing thorough testing strategies, and participating in regular code reviews to maintain project stability and scalability.

What are the key skills and qualifications needed to thrive as a Python Application Developer, and why are they important?

To thrive as a Python Application Developer, you need proficiency in Python programming, a solid understanding of software development principles, and experience with frameworks like Django or Flask, typically supported by a degree in computer science or related field. Familiarity with version control systems such as Git, databases like PostgreSQL or MongoDB, and cloud platforms is often required, along with optional certifications such as PCEP or PCAP. Strong problem-solving abilities, effective communication, and teamwork skills help you collaborate efficiently and adapt to evolving project requirements. These skills ensure you can build robust, maintainable applications and contribute effectively to development teams.

Will AI replace Python coders?

AI is unlikely to fully replace Python application developers, as they require problem-solving, creativity, and understanding of complex systems that AI cannot replicate. Instead, AI tools can assist developers by automating repetitive tasks and enhancing productivity, making their roles more efficient. Staying updated with new technologies and developing skills in AI integration can help Python developers remain valuable in the evolving tech landscape.

Are Python still in demand in 2026?

Python application developers remain in high demand in 2026 due to Python's widespread use in data science, machine learning, web development, and automation. Skills in frameworks like Django or Flask, along with knowledge of libraries such as Pandas or TensorFlow, enhance job prospects in this field.

Which pays more, C++ or Python?

For a Python Application Developer, salaries for C++ and Python skills are often comparable, with factors like experience, industry, and location influencing pay. Generally, C++ developers may earn slightly more in specialized fields such as systems or game development, but Python developers are in high demand across data science, web development, and automation. Both skills are valuable, and compensation depends on the specific role and expertise level.

What are Python Application Developers?

Python Application Developers are software professionals who design, build, test, and maintain applications using the Python programming language. They work on a variety of projects, ranging from web and desktop applications to data analysis tools and automation scripts. These developers are skilled in Python frameworks and libraries and often collaborate with other developers, designers, and stakeholders to deliver functional and efficient software solutions.

Are Python developer jobs in demand?

Python developer jobs are in high demand across various industries such as technology, finance, and data science due to Python's versatility and widespread use in web development, automation, and machine learning. Employers seek professionals with skills in frameworks like Django or Flask, and knowledge of data analysis tools, making Python development a strong career choice with steady growth prospects.
What are popular job titles related to Python Application Developer jobs in Ontario? For Python Application Developer jobs in Ontario, the most frequently searched job titles are:
What job categories do people searching Python Application Developer jobs in Ontario look for? The top searched job categories for Python Application Developer jobs in Ontario are:
What cities in Ontario are hiring for Python Application Developer jobs? Cities in Ontario with the most Python Application Developer job openings:
Python Application Developer jobs near you
Infographic showing various Python Application Developer job openings in Ontario as of June 2026, with employment types broken down into 1% Locum Tenens, 77% Full Time, 13% Part Time, 4% Temporary, 3% Contract, and 2% Nights. Highlights an 81% Physical, 5% Hybrid, and 14% Remote job distribution.

Programming & Application Developer

Mafna Air Technologies Inc

Cambridge, ON • On-site

CA$40K - CA$55K/yr

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

About Us:

Mafna Air Technologies Inc. is a Canadian company and one of the leaders in providing custom Air Handling Solutions and HVAC Equipment across the US, Canada, and international markets. For over 20 years, Mafna has delivered innovative solutions to a wide range of industries and Government Agencies, including multiple Fortune 500 companies.
Position Overview:
We are seeking a talented and motivated Programming & Application Developer to join our growing engineering and technology team. The ideal candidate will have strong programming skills, experience working with modern web technologies, and a passion for solving real-world problems through software innovation.
To be considered for this opportunity, please complete the questionnaire by clicking on the following link:
Programming & Application Developer – Questionnaire – Fill out form
Key Responsibilities:
  • Develop, test, and maintain internal and client-facing applications.
  • Design and optimize database systems using MySQL and MSSQL.
  • Create responsive, user-friendly web interfaces using HTML5, CSS, JavaScript, React and jQuery.
  • Develop backend systems using Node.js, Php, Python, C#, .NET and ASP.NET frameworks.
  • Collaborate with cross-functional teams to define, design, and deploy new features.
  • Troubleshoot, debug, and improve existing software applications.
Required Skills & Experience:
  • Minimum 2 years of professional experience in software or application development.
  • Strong knowledge of MySQL, MSSQL, JavaScript, jQuery, HTML5, CSS, and related frameworks.
  • Experience with Node.js, React, Php, Python, C#, .NET, ASP.NET.
  • Strong understanding of web application architecture and APIs.
  • Excellent problem-solving skills and attention to detail.
  • Ability to work independently and in a team environment.
Eligibility:
  • Must be a Permanent Resident or Canadian Citizen.

Why Join Mafna:
  • Be part of an innovative company delivering solutions across North America and beyond.
  • Collaborative and growth-oriented work environment.
  • Competitive compensation package.