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Python Junior Jobs in Mississauga, ON (NOW HIRING)

PPT

Senior Data Scientist

Toronto, ON · Remote

Mentor junior data scientists and contribute to the growth of the data science team. * Stay current ... Strong proficiency in Python, SQL and ML libraries (e.g., scikit-learn, TensorFlow, PyTorch)

AIM Software

Senior DevOps Engineer

Toronto, ON · Remote

Create and enhance automation scripts (PowerShell, Python, etc.) to improve efficiency ... Mentor and share knowledge with junior engineers to support team development. WhatWe'reLooking For ...

Zafin

Lead Cloud Operations Engineer- Azure

Toronto, ON

CA$110K - CA$135K/yr

You will be building scalable, reliable, and efficient infrastructure while mentoring junior ... Automation scripting (Python, Bash/Shell) to reduce manual operational tasks * Strong networking ...

Vangard, Inc.

Senior AI Scientist

Toronto, ON · On-site

You will also mentor junior data scientists and contribute to the growth of our AI safety research ... Strong programming skills in Python, including experience with data pipelines, large-scale ...

Achievers

Staff Software Engineer

Toronto, ON

Utilize a wide range of modern tools and technologies, including Python, Go, Kubernetes, Docker ... Guide junior engineers not only on technical solutions but also on career development, helping them ...

Purolator

Technology Developer

Mississauga, ON · On-site

... Python, Angular and AWS. * Design and support serverless and distributed architectures using ... Mentor junior and intermediate developers, share knowledge and promote consistent engineering ...

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Python Junior information

See Mississauga, ON salary details

$23.5K

$86.4K

$168.6K

How much do python junior jobs pay per year?

As of Aug 21, 2026, the average yearly pay for python junior in Mississauga, ON is $86,376.00, according to ZipRecruiter salary data. Most workers in this role earn between $44,743.00 and $122,456.00 per year, depending on experience, location, and employer.

What is a Python junior?

Python Juniors are entry-level software developers who specialize in using the Python programming language. They typically have foundational knowledge of Python and basic software development principles, and may work on tasks such as writing simple scripts, debugging code, or supporting more experienced developers on larger projects. Python Juniors are often recent graduates or individuals transitioning into software development, and their role offers opportunities to learn and grow their skills in real-world settings.

What are some common challenges faced by Python junior developers during their first year on the job?

Python Junior developers often encounter challenges such as understanding large codebases, managing version control with tools like Git, and adapting to team workflows. They may also need to improve their debugging skills and learn to write clean, maintainable code that meets team standards. Regular communication with senior developers and proactively seeking feedback can help overcome these hurdles and accelerate professional growth.

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

To thrive as a Python Junior, you need a good grasp of Python programming fundamentals, problem-solving abilities, and a relevant degree or coursework in computer science or a related field. Familiarity with version control systems like Git, code editors (e.g., VS Code), and basic understanding of frameworks such as Django or Flask is often expected. Strong communication, willingness to learn, and teamwork are important soft skills that set candidates apart. These skills and qualities are essential for effectively contributing to projects, collaborating with team members, and growing within a technical environment.

What is the difference between Python Junior vs Python Developer?

AspectPython JuniorPython Developer
Required CredentialsBasic programming knowledge, often a diploma or bootcampMore experience, often a degree in CS or related field
Work EnvironmentEntry-level projects, supervised tasksFull project responsibilities, collaborative teams
Industry UsageInternships, junior roles in tech companiesMid-level roles across industries like finance, tech, healthcare

The main difference between a Python Junior and a Python Developer lies in experience and responsibilities. Python Juniors typically have basic skills and work under supervision, while Python Developers handle more complex tasks independently. Employers seek Python Juniors for entry-level positions, with opportunities to grow into full Python Developers as skills develop.

Are Python juniors still in demand in 2026?

Python junior developers are expected to remain in demand in 2026 due to Python's widespread use in data analysis, web development, and automation. Entry-level roles often require knowledge of frameworks like Django or Flask and familiarity with version control tools such as Git.

What are the most commonly searched types of Python jobs in Mississauga, ON?

The most popular types of Python jobs in Mississauga, ON are:

What cities near Mississauga, ON are hiring for Python Junior jobs?

Cities near Mississauga, ON with the most Python Junior job openings:

Python Junior jobs near you

Senior Full Stack Software Engineer

Kraft Heinz

Toronto, ON • Hybrid

Full-time

Re-posted 6 days ago

Kraft Heinz rating

7.0

Company rating: 7.0 out of 10

Based on 122 frontline employees who took The Breakroom Quiz

228th of 440 rated food and drinks producers

Job description

Job Description

Senior Full Stack Software Engineer at a glance...

Location: Toronto, ON

Hybrid: 3 days/week

We'rehiring a Senior Full Stack Software Engineer to join one of our product engineering pods, building and evolving features end-to-end across frontend and backend systems.You'llpartner closely with product managers, designers, and other engineers to ship high-quality, reliable software that directly affects user experience and product outcomes.This role is hands-on and highly collaborative - the ability to communicate clearly, present technical decisions, and align cross-functional partners is as important as the code you write.

What's on the menu?

Product Development

  • Design and implement end-to-end product features across frontend and backend

  • Build responsive, performant user interfaces using React (TypeScript)

  • Develop scalable APIs and backend services using Python (FastAPI)

  • Translate product requirements into clean, maintainable code

System Design & Implementation

  • Contribute to application architecture and technical design decisions

  • Ensure code quality, performance, and scalability of services

  • Work with relational databases - data modeling, schema, and migrations

  • Integrate with internal and external APIs

Quality & Delivery

  • Write unit and integration tests to ensure reliability

  • Participate in code reviews and uphold engineering standards

  • Contribute to CI/CD workflows and deployment processes

  • Troubleshoot, debug, and resolve production issues

Collaboration & Communication

  • Partner with product managers and designers to refine requirements and shape solutions

  • Communicate technical trade-offs and risks clearly to both technical and non-technical stakeholders

  • Present technical designs, approaches, and post-mortems in team forums and reviews

  • Mentor junior and mid-level engineers; share knowledge across the pod

  • Participate actively in sprint planning, stand-ups, retrospectives, and other team routines

Recipe for Success - apply now if this sounds like you!

  • 5+ years of experience in software engineering

  • Strong hands-on experience with:

  • JavaScript / TypeScript (React)

  • Python (FastAPI)

  • RESTful API design and backend development

  • SQL and database design

  • Experience building and shipping production-grade applications

  • Experience working with cloud platforms (Azure preferred)

  • Strong understanding of modern software engineering practices

  • Ability to work independently and take ownership in a product-focused team

  • Communication & Soft Skills:

  • Excellent written and verbal communication skills in English - fluent professionalproficiencyrequired

  • Confident presenting technical concepts, trade-offs, and decisions to engineers, product managers, and senior stakeholders

  • Strong active-listening and stakeholder-management skills; able to navigate ambiguity and align partners around solutions

  • Comfortable giving and receiving constructive feedback in code reviews, design discussions, and retrospectives

  • Collaborative, low-ego, and pragmatic - prioritizes team and product outcomes over individual preference

  • Experience with automated testing and CI/CD pipelinespreferred

  • Performance optimization experiencepreferred

  • Experience with observability toolingpreferred

  • Experience working in Agile environmentspreferred

  • Experience mentoring engineers or leading technical discussions preferred

Location(s)Toronto - Queen's Quay - Headquarters

Kraft Heinz is an Equal Opportunity Employer - Underrepresented Ethnic Minority Groups/Women/Veterans/Individuals with Disabilities/Sexual Orientation/Gender Identity and other protected classes.

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