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Senior Python Developer Jobs in Mississauga, ON (NOW HIRING)

Virtusa

Senior Python Developer

Mississauga, ON

... in Python and object-oriented programming Experience with at least one major Python web framework (Django, Flask, or FastAPI) Strong understanding of RESTful API design and development Experience ...

Virtusa

Senior Python Developer

Mississauga, ON · On-site

... in Python and object-oriented programming Experience with at least one major Python web framework (Django, Flask, or FastAPI) Strong understanding of RESTful API design and development Experience ...

Atyeti Inc

Sr Python Developer

Toronto, ON · On-site

Design, develop, and maintain robust and scalable RESTful APIs using Python. * Collaborate with cross-functional teams including frontend, DevOps, and QA to deliver high-quality features. * Work with ...

Acquird.io

Senior Platform Engineer (Python)

Toronto, ON · On-site

$130 - $180/hr

... Python Developer for a Platform (not applications) team * Open on seniority from Senior to Staff ... level About Us: We're one of the top retail analytic platforms that help marketing teams/brands ...

CorGTA

Senior Data Engineer

Toronto, ON · Hybrid

CA$100/hr

Senior Data Engineer Structure: Hybrid (2 days onsite / 3 days remote) - Toronto Duration: 6-Month ... Build and optimize data pipelines using Python, SQL and modern cloud technologies * Develop and ...

Autodesk

Senior Software Developer

Toronto, ON

... Senior Software Developer to join a Data Services team focused on delivering core record- and ... This role combines hands-on backend engineering (Python, serverless, microservices, APIs, AWS) with ...

Scotiabank

Developer, AI Engineering

Toronto, ON · Hybrid

You will work with Senior Engineers to build and deploy production grade AI systems end to end. Is ... Expertlevel proficiency in Python, SQL and cloud infrastructure * Handson experience deploying AI ...

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Senior Python Developer information

See Mississauga, ON salary details

$53.7K

$124.8K

$172.9K

How much do senior python developer jobs pay per year?

As of Jul 29, 2026, the average yearly pay for senior python developer in Mississauga, ON is $124,799.00, according to ZipRecruiter salary data. Most workers in this role earn between $105,500.00 and $141,295.00 per year, depending on experience, location, and employer.

What are the main responsibilities of a Senior Python Developer?

A Senior Python Developer is responsible for designing, developing, and maintaining complex software applications using the Python programming language. They lead the technical aspects of projects, mentor junior developers, and ensure code quality through code reviews and best practices. Additionally, they collaborate with cross-functional teams to gather requirements, solve technical challenges, and deploy scalable and efficient solutions. Senior Python Developers are also expected to stay updated with the latest trends and advancements in Python and related technologies.

What is the difference between Senior Python Developer vs Python Developer?

AspectSenior Python DeveloperPython Developer
Required ExperienceTypically 5+ years, with leadership and complex project experienceUsually 1-3 years, focusing on core Python skills
ResponsibilitiesDesigning architecture, mentoring, handling complex systemsWriting code, debugging, implementing features
CertificationsOptional but beneficial (e.g., Python certifications, cloud certs)Often not required
Work EnvironmentCollaborative teams, project planning, code reviewsDevelopment-focused, task-oriented

The main difference between a Senior Python Developer and a Python Developer lies in experience, responsibilities, and leadership. Senior developers handle complex projects, mentor others, and often participate in architecture decisions, while Python Developers focus on coding and feature implementation. Both roles are essential in tech companies, but the senior role requires more experience and broader skills.

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

To thrive as a Senior Python Developer, you need advanced proficiency in Python programming, experience with software architecture, and a solid understanding of algorithms and data structures, usually backed by a degree in computer science or related fields. Familiarity with frameworks like Django or Flask, version control systems such as Git, and containerization tools like Docker are typically required, alongside knowledge of modern CI/CD pipelines. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with teams and mentor junior developers. Mastery of these skills ensures the delivery of scalable, maintainable software solutions and the ability to drive technical excellence within development teams.

What are some common challenges faced by Senior Python Developers when leading a development team?

Senior Python Developers often encounter challenges such as balancing hands-on coding with mentoring junior team members and ensuring code quality across the team. They are also responsible for making architectural decisions, which requires staying updated on best practices and emerging Python frameworks. Additionally, coordinating collaboration between cross-functional teams (like DevOps, QA, and front-end developers) can be complex, especially in agile environments where requirements may shift rapidly. Overcoming these challenges helps foster a productive and innovative team culture.
What cities near Mississauga, ON are hiring for Senior Python Developer jobs? Cities near Mississauga, ON with the most Senior Python Developer job openings:
Senior Python Developer jobs near you
Infographic showing various Senior Python Developer job openings in Mississauga, ON as of July 2026, with employment types broken down into 83% Full Time, 5% Part Time, 1% Temporary, and 11% Contract. Highlights an 80% Physical, 7% Hybrid, and 13% Remote job distribution, with an average salary of $124,799 per year, or $60 per hour.

Senior Python Developer

Virtusa

Mississauga, ON

Other

Re-posted 20 days ago

Job description

Responsibilities Design, develop, and maintain scalable Python-based applications and services Lead technical design and architecture discussions for complex systems Write clean, efficient, and maintainable code following best practices Conduct code reviews and provide technical mentorship to junior and mid-level engineers Collaborate with product, DevOps, QA, and architecture teams Optimize performance, scalability, and reliability of applications Troubleshoot and resolve complex production issues Build and enhance automated testing frameworks Support CI/CD pipelines and modern DevOps workflows Ensure compliance with security, data, and quality standards Required Qualifications Bachelor's degree in Computer Science, Engineering, or equivalent experience 8+ years of professional software development experience Strong proficiency in Python and object-oriented programming Experience with at least one major Python web framework (Django, Flask, or FastAPI) Strong understanding of RESTful API design and development Experience with relational databases (PostgreSQL, MySQL, Oracle) and SQL Familiarity with NoSQL databases (MongoDB, DynamoDB, Redis) Solid knowledge of asynchronous processing and multithreading/multiprocessing concepts Experience with Git and modern version control workflows Preferred Qualifications Experience with cloud platforms (AWS, Azure, or GCP) Familiarity with containerization and orchestration tools (Docker, Kubernetes) Experience with data pipelines, ETL processes, or distributed systems Knowledge of messaging systems (Kafka, RabbitMQ, SQS) Experience building microservices and event-driven architectures Exposure to data science, machine learning, or AI platforms is a plus Testing & Quality Strong experience with testing frameworks (pytest, unittest, nose) Familiarity with test automation, integration testing, and performance testing Commitment to high code quality, reliability, and maintainability Soft Skills Strong problem-solving and analytical abilities Excellent written and verbal communication skills Ability to lead technical initiatives and influence architecture decisions Comfortable working in fast-paced, collaborative environments Passion for mentoring, learning, and continuous improvement

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About Virtusa

Sourced by ZipRecruiter

We are builders, makers, and doers with the technical skills and domain expertise to transform your business at scale and speed without disruption. Our unique Engineering First approach blends deep industry expertise and empowered, agile teams, to create holistic solutions that seamlessly move the business forward. We help clients engage with new technology paradigms to creatively build solutions that drive them to the forefront of their industries.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Westborough, MA, US

Year founded

1996

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