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Python Application Developer Jobs in Ontario (NOW HIRING)

Enterprise Application Developer

Toronto, ON ยท 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 ...

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 ...

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 ...

Python Developer Location: Mississauga, ON 6 months contract with possible extension 3 days onsite ... Contribute to the design and development of application architectures. * Write clean, well ...

New

\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 ...

\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 ...

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 ...

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

Python Developer

Kanata, ON

CA$75K - CA$95K/yr

... in Python. * Strong understanding of object-oriented programming (OOP) principles and design ... in application materials based on available information. These tools assist our recruitment team ...

App. Data & BI Developer

Concord, ON ยท 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 ...

The ideal candidate has deep expertise in Python software engineering, APIs, data structures, and ... LLM application quality and safety: prompt/version management, evaluation frameworks (automatic and ...

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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 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:
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.
Senior Application Developer- Python (Global Security)

Senior Application Developer- Python (Global Security)

Royal Bank of Canada

Toronto, ON โ€ข On-site

Full-time

Posted 2 days ago


Job description

Job Description

What is the opportunity?

The SIAI Digital Development team is constantly undertaking complex development initiatives within Global Cyber Security. In this role, you will be a full-stack developer within the SIAI Digital Development team, responsible for designing and implementing software solutions across multiple platforms. Our Digital Development team designs, architects, and builds bespoke solutions to support forward-thinking and industry leading initiatives from JSOC's Cyber & Digital Threat Hunting, Cyber Analytics, Adversary Emulation, Data Loss Prevention teams. The role involves coordination, development, communication and execution to ensure objectives are accomplished on time and meeting intents.

What will you do?

  • Design, develop, and deploy high-performance, scalable software solutions using Python and Python frameworks.
  • Drive cloud initiatives by designing and optimizing solution on platforms like OCP, Azure or AWS.
  • Conduct code reviews, provide constructive feedback, and ensure adherence to coding standards.
  • Mentor junior engineers, foster knowledge sharing, and encourage technical growth within the team.
  • Troubleshoot and resolve technical issues while monitoring and improving the overall systems health.

What do you need to succeed?
Must-have

  • 7+ years of experience in software development or engineering, with a deep understanding of system design and architecture.
  • Advanced expertise in Python development, including design patterns, unit testing, debugging, and frameworks (Django, FastApi, Flask).
  • Strong experience in cloud (OCP, Azure, AWS) and containerization (Docker, Kubernetes).
  • Knowledge of database systems (SQL, NoSQL), web frameworks, and RESTful API development.
  • Proven experience in gathering and documenting technical requirements, with a strong focus on clarity and precision.

Nice-to-have

  • Experience in working with Frontend framework such asVue.js and related front-end tech stack (HTML, CSS, JavaScript/Typescript).
  • Knowledge of CI/CD and DevOps tools such as Jenkins, GIT, GitHub Actions.
  • Exposure to monitoring and logging tools like ELK, Dynatrace, or Grafana.
  • Understanding of security best practises and implementing secure coding techniques.
  • Experience with event-driven architecture
  • Good knowledge of Gen AI tools and agentic engineering
  • Comfortable working and thriving in a fast-paced environment with ambiguity.

What's in it for you?
We thrive on the challenge to be our best, progressive thinking to keep growing, and working together to deliver trusted advice to help our clients thrive and communities prosper. We care about each other, reaching our potential, making a difference to our communities, and achieving success that is mutual.

  • Opportunity to develop industry-leading solutions that target cyber security concerns within a mature organization

  • A comprehensive Total Rewards Program including bonuses and flexible benefits, competitive compensation, commissions, and stock where applicable

  • Leaders who support your development through coaching and managing opportunities

  • Ability to make a difference and lasting impact

  • Work in a dynamic, collaborative, progressive, and high-performing team

  • A world-class training program in financial services

  • Flexible work/life balance options

  • Opportunities to do challenging work

#LI-Post

#TechPJ

Job Skills

Active Learning, Agile Methodology, Application Integrations, Detail-Oriented, Enterprise Application Delivery, Group Problem Solving, Programming Languages, Software Development Life Cycle (SDLC)

Additional Job Details

Address:

16 YORK ST:TORONTO

City:

Toronto

Country:

Canada

Work hours/week:

37.5

Employment Type:

Full time

Platform:

TECHNOLOGY AND OPERATIONS

Job Type:

Regular

Pay Type:

Salaried

Posted Date:

2026-03-17

Application Deadline:

2026-07-02

Note: Applications will be accepted until 11:59 PM on the day prior to the application deadline date above

Our Employment Opportunities

At RBC, we are guided by living shared values of Client First, Integrity, Collaboration, Respect and Excellence and winning together as One RBC. We believe an inclusive workplace that has diverse perspectives is core to our continued growth as one of the largest and most successful banks in the world. Maintaining a workplace where our employees feel supported to perform at their best, effectively collaborate, drive innovation, and grow professionally helps to bring our Purpose to life and create value for our clients and communities. RBC strives to deliver this through policies and programs intended to foster a workplace based on respect, belonging and opportunity for all.

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RBC is presently inviting candidates to apply for this existing vacancy. Applying to this posting allows you to express your interest in this current career opportunity at RBC. Qualified applicants may be contacted to review their resume in more detail.

Employment Type: FULL_TIME