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Python Developer Internship Jobs in Ontario (NOW HIRING)

DevSecOps Developer Zero Trust : Mercedes-Benz Canada needs stars like you What it means to be a ... The high level of responsibility and contribution found in our internship programs is unlike my ...

Write clean, efficient, and maintainable code using high-level programming languages such as Python ... Our interns come from top universities worldwide, and we invite you to contribute, learn, and grow ...

SVT/PV Engineer 1 - New Grad

Ottawa, ON · On-site

CA$62K - CA$100K/yr

Contribute to test automation initiatives using Python-based frameworks, Jupyter notebooks, and ... Experience: 0-2 years of relevant experience (including internships, co-op terms, academic research ...

Strong programming skills - we primarily work with Python, C++ and Rust, but we care more about how ... If you're still studying or haven't yet graduated, we'd love you to apply to our internship ...

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Python Developer Internship information

What is a Python developer internship?

A Python Developer Internship is a temporary, entry-level position where individuals learn and apply Python programming skills in a real-world professional setting. Interns typically work under the supervision of experienced developers, assisting with coding, debugging, and software development projects. This internship provides hands-on experience in using Python for tasks such as web development, data analysis, automation, and scripting. It's an excellent opportunity for students or recent graduates to gain practical skills, build a professional network, and improve their chances of securing a full-time job as a Python developer.

What kinds of projects and tasks can I expect to work on during a Python developer internship?

As a Python Developer Intern, you'll typically work on a variety of hands-on projects, such as developing scripts to automate processes, contributing to web applications using frameworks like Django or Flask, and assisting with data analysis or backend services. You'll often collaborate closely with senior developers, attend code reviews, and participate in daily stand-ups. These tasks provide exposure to real-world development workflows and foster both technical and teamwork skills, giving you a strong foundation for a future career in software engineering.

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

To thrive as a Python Developer Intern, you need a solid understanding of Python programming fundamentals, data structures, algorithms, and typically a background in computer science or related coursework. Familiarity with version control systems like Git, basic knowledge of web frameworks such as Flask or Django, and experience with code editors or IDEs are common requirements. Strong problem-solving skills, attention to detail, and a willingness to learn make interns stand out in this role. These skills and qualities are crucial for contributing effectively to projects, adapting to new technologies, and growing within a fast-paced development team.

Are Python developers still in demand?

Python developers are currently in high demand across various industries due to Python's versatility and widespread use in data analysis, web development, and automation. Skills in frameworks like Django or Flask and knowledge of data tools can enhance job prospects in this field.

Is a Python Developer Internship worth it?

A Python Developer Internship provides practical experience in programming, debugging, and using tools like Git and IDEs, which can enhance a candidate's skills and employability. Internships often offer networking opportunities and a chance to understand industry workflows, making them valuable for those starting a career in software development.

What are the most commonly searched types of Python Developer jobs in Ontario?

The most popular types of Python Developer jobs in Ontario are:

What cities in Ontario are hiring for Python Developer Internship jobs?

Cities in Ontario with the most Python Developer Internship job openings:

Infographic showing various Python Developer Internship job openings in Ontario as of September 2026, with employment types broken down into 10% Internship, 1% As Needed, 69% Full Time, 19% Part Time, and 1% Contract. Highlights an 78% Physical, 2% Hybrid, and 20% Remote job distribution.

Machine Learning Developer (New or Recent Graduate)

Toronto, ON

BMO Capital Markets
1 - 5K employees

Full-time

Medical, Life, Retirement

Posted 6 days ago


Job description

Application Deadline:

09/12/2026

Address:

33 Dundas Street West

Job Family Group:

Technology

BMO is seeking a Machine Learning Developer to join our team in Toronto. This role is ideal for an early-career professional with a strong foundation in Machine Learning, Python development, and AWS cloud technologies who is passionate about building intelligent, scalable solutions that solve real business challenges.

As a Machine Learning Developer, you will contribute to the design, development, testing, and deployment of machine learning applications and cloud-based solutions. You will work with cross-functional teams to translate business requirements into technical solutions, develop production-ready code, and support the end-to-end software development lifecycle.

The successful candidate will have a strong understanding of machine learning algorithms, data structures, software engineering principles, and cloud-native development. Experience developing user-facing applications, serverless functions, and machine learning models through professional experience, internships, university projects, or graduate-level research is highly valued.

Key Responsibilities

  • Design, develop, test, and implement machine learning solutions that address business needs.

  • Translate user and business requirements into technical specifications and scalable solutions.

  • Develop and maintain applications using Python and modern software engineering practices.

  • Build, deploy, and support machine learning models in cloud environments, primarily AWS.

  • Develop and integrate serverless applications using AWS services such as Lambda, API Gateway, S3, and related cloud technologies.

  • Support user interface development and integration with machine learning-powered applications.

  • Apply knowledge of machine learning algorithms, model evaluation techniques, feature engineering, and data processing.

  • Participate in model deployment, monitoring, troubleshooting, and performance optimization.

  • Ensure code and configurations adhere to security, logging, performance, and operational standards.

  • Perform root cause analysis, troubleshooting, and ongoing maintenance of applications and services.

  • Follow release management processes, version control, and CI/CD practices.

  • Evaluate emerging technologies and recommend solutions that improve performance, scalability, and user experience.

  • Collaborate with product, engineering, and business teams to deliver high-quality technology solutions.

  • Take measured risks while protecting the bank by applying BMO's Risk Management Framework and adhering to all applicable policies, standards, and regulatory requirements.


Technical Skills

Python

  • Strong programming ability using Python for application development, data processing, and machine learning implementations.

  • Experience with libraries such as Pandas, NumPy, Scikit-learn, TensorFlow, PyTorch, or similar.

AWS Cloud

  • Experience developing or deploying solutions within AWS environments.

  • Understanding of serverless architectures and services such as AWS Lambda, API Gateway, S3, IAM, CloudWatch, and SageMaker.

Machine Learning

  • Strong foundation in supervised and unsupervised learning algorithms.

  • Understanding of model training, evaluation, feature engineering, optimization, and deployment best practices.

  • Knowledge of AI/ML concepts gained through professional experience, university projects, research initiatives, or graduate studies.

Qualifications

  • Approximately 1-3 years of relevant experience, including:

  • Professional work experience; and/or

  • Relevant co-op placements, internships, university projects, research initiatives, or graduate-level (MBA/Master's) projects focused on machine learning, AI, software engineering, or analytics.

  • Post-secondary degree in Computer Science, Software Engineering, Data Science, Mathematics, Engineering, AI, Machine Learning, or a related discipline.

  • Strong understanding of machine learning algorithms and statistical modeling concepts.

  • Experience developing applications using Python.

  • Exposure to AWS cloud technologies and serverless architectures.

  • Understanding of software engineering principles, testing methodologies, and the software development lifecycle.

  • Experience working with source control tools such as Git.

  • Strong analytical, problem-solving, and debugging skills.

  • Effective verbal and written communication skills.


Preferred

  • Experience with AWS SageMaker or other machine learning deployment platforms.

  • Experience building user-facing applications, dashboards, or UI components.

  • Experience with APIs, microservices, and cloud-native architectures.

  • Familiarity with CI/CD pipelines and MLOps practices.

  • Experience working in Agile delivery environments.

  • Master's degree or MBA with AI, Analytics, Data Science, or Technology-focused projects.

This role offers an excellent opportunity for a technically curious developer looking to apply machine learning, cloud technologies, and software engineering skills to impactful enterprise-scale solutions within BMO.

Salary:

$55,500.00 - $120,000.00

Pay Type:

Salaried

The above represents BMO Financial Group's pay range and type.

Salaries will vary based on factors such as location, skills, experience, education, and qualifications for the role, and may include a commission structure. Salaries for part-time roles will be pro-rated based on number of hours regularly worked. For commission roles, the salary listed above represents BMO Financial Group's expected target for the first year in this position.

BMO Financial Group's total compensation package will vary based on the pay type of the position and may include performance-based incentives, discretionary bonuses, as well as other perks and rewards. BMO also offers health insurance, tuition reimbursement, accident and life insurance, and retirement savings plans. To view more details of our benefits, please visit:https://jobs.bmo.com/global/en/Total-Rewards

About Us

At BMO we are driven by a shared Purpose: Boldly Grow the Good in business and life. It calls on us to create lasting, positive change for our customers, our communities and our people. By working together, innovating and pushing boundaries, we transform lives and businesses, and power economic growth around the world.

As a member of the BMO team you are valued, respected and heard, and you have more ways to grow and make an impact. We strive to help you make an impact from day one - for yourself and our customers. We'll support you with the tools and resources you need to reach new milestones, as you help our customers reach theirs. From in-depth training and coaching, to manager support and network-building opportunities, we'll help you gain valuable experience, and broaden your skillset.

To find out more visit us at https://jobs.bmo.com/ca/en.

BMO is committed to an inclusive, equitable and accessible workplace. By learning from each other's differences, we gain strength through our people and our perspectives. Accommodations are available on request for candidates taking part in all aspects of the selection process. To request accommodation, please contact your recruiter.

Note to Recruiters: BMO does not accept unsolicited resumes from any source other than directly from a candidate. Any unsolicited resumes sent to BMO, directly or indirectly, will be considered BMO property. BMO will not pay a fee for any placement resulting from the receipt of an unsolicited resume. A recruiting agency must first have a valid, written and fully executed agency agreement contract for service to submit resumes.