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

Citi

Generative AI Developer

Mississauga, ON

CA$94K - CA$141K/yr

In this role, you'll work closely with senior developers, AI architects, and business stakeholders ... Required Technical Skills Proficiency in Python for GenAI development, data preprocessing, and ...

MPAC

Senior Systems Developer/Designer

Pickering, ON · Hybrid

Java and Python * PostgreSQL * AWS technologies including Lambda Functions * Elastic Search ... As a Senior Systems Developer, you'll play a key role in the design, development and support of ...

Autodesk

Senior AI Developer

Toronto, ON · On-site

... Senior AI Developer Position Overview The team is looking for a Principal Software Developer. You ... Python or Node.js * Experience with AI Agent tools & frameworks * Experience building and ...

Targeted Talent

Senior Java Developer

Toronto, ON · On-site +1

$91K - $120K/yr

Are you a Senior Java Developer who loves working with cutting-edge technologies and solving ... Work with React.js and Google App Engine with Python 2.7 to support the Front End team. What's in ...

Targeted Talent

Senior Java Developer

Toronto, ON · On-site +1

$91K - $120K/yr

Are you a Senior Java Developer who loves working with cutting-edge technologies and solving ... Work with React.js and Google App Engine with Python 2.7 to support the Front End team. What's in ...

Geotab

Senior Software Developer

Oakville, ON · On-site

You are a skilled Senior Software Developer with extensive software design and implementation ... C#, Java, Python), as well as experience with Python, Google Compute Engine, and Google BigQuery.

AIM Software

Senior DevOps Engineer

Toronto, ON · Remote

WHY THIS ROLE IS IMPORTANT TO US We are looking for a Senior DevOps Engineer to join our team ... Create and enhance automation scripts (PowerShell, Python, etc.) to improve efficiency.

Citi

Sr. Developer/SRE - Vice President

Mississauga, ON · On-site

CA$120K - CA$170K/yr

They should be proficient in at least one object-oriented programming language such as Java, Python ... Proven experience as senior developer, SRE, or similar role. Proficiency in object-oriented ...

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All JobsPython Developer JobsSenior Python Developer JobsSenior Python Developer Jobs in Toronto, ON

Senior Python Developer information

See Toronto, ON salary details

$54.4K

$126.4K

$175.1K

How much do senior python developer jobs pay per year?

As of Sep 7, 2026, the average yearly pay for senior python developer in Toronto, ON is $126,437.00, according to ZipRecruiter salary data. Most workers in this role earn between $106,886.00 and $143,151.00 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 are the key skills and qualifications needed to thrive as a senior Python developer?

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 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.

Are senior Python developers still in demand?

Senior Python developers remain in high demand due to the language's versatility in web development, data analysis, machine learning, and automation. Companies seek experienced developers with skills in frameworks like Django or Flask, and proficiency in cloud platforms and APIs enhances job prospects.

How much does a senior Python developer make?

A senior Python developer typically earns between $100,000 and $150,000 annually, depending on experience, location, and industry. They often possess strong skills in frameworks like Django or Flask and may hold certifications or advanced degrees that influence salary levels.

What does a senior Python developer do?

A senior Python developer designs, develops, and maintains complex software applications using Python. They often lead projects, review code, optimize performance, and collaborate with cross-functional teams, requiring strong problem-solving skills and knowledge of frameworks like Django or Flask. Additionally, they may mentor junior developers and ensure code quality through testing and best practices.

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

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

What are popular job titles related to Senior Python Developer jobs in Toronto, ON?

For Senior Python Developer jobs in Toronto, ON, the most frequently searched job titles are:

What job categories do people searching Senior Python Developer jobs in Toronto, ON look for?

The top searched job categories for Senior Python Developer jobs in Toronto, ON are:

What cities near Toronto, ON are hiring for Senior Python Developer jobs?

Cities near Toronto, ON with the most Senior Python Developer job openings:

Senior Python Developer jobs near you
Infographic showing various Senior Python Developer job openings in Toronto, ON as of August 2026, with employment types broken down into 1% Internship, 91% Full Time, 4% Part Time, and 4% Contract. Highlights an 80% Physical, 7% Hybrid, and 13% Remote job distribution, with an average salary of $126,437 per year, or $60.8 per hour.

Senior Software Developer - Numerical

Seequent

Toronto, ON • On-site

Full-time

Re-posted 2 hours ago

Job description

The Role

Reporting to the Director, Software Development (or delegate), we are seeking an experienced Senior Software Developer - Numerical to join our geoscience software development team. This role is based in Toronto, ON, operating under a hybrid work model.

This position focuses on transforming early-stage research prototypes into high-quality, production-ready numerical software. You will design, implement, and optimize high-performance numerical libraries and compute kernels using C++, Python, and CUDA, ensuring scalability, robustness, and performance.

Working closely with researchers and domain experts, this role bridges scientific research and software engineering, requiring strong numerical expertise, performance-focused thinking, and effective cross-functional collaboration.

In this role, you will have the opportunity to

Numerical Software Development

  • Develop and optimize high-performance numerical software in C++, Python, and CUDA.
  • Re-engineer research prototypes into scalable, production-ready solutions.
  • Implement parallel programming techniques including multi-threading, vectorization, and GPU acceleration.
  • Ensure solutions are portable across Linux (primary) and Windows environments.

Performance & Quality

  • Profile, benchmark, and optimize numerical workflows using tools such as Nsight and VTune.
  • Improve runtime efficiency, memory usage, and algorithmic scalability.
  • Design automated testing and verification frameworks to ensure numerical correctness and reliability.

Collaboration & Engineering Excellence

  • Work closely with researchers, engineers, and product teams to translate research concepts into stable implementations.
  • Participate in design reviews, technical planning, and peer code reviews.
  • Produce clear technical documentation and apply modern engineering practices, including CI/CD (GitHub Actions) and version control.

Essential Knowledge, Skills, and Experience

  • Bachelor's degree in Computer Science, Applied Mathematics, Physics, or a related STEM field.
  • 7+ years of experience in software development or engineering roles.
  • Strong experience in numerical computing with C++ and Python.
  • Hands-on experience with CUDA, GPU programming, and parallel computing.
  • Knowledge of numerical libraries such as Eigen or BLAS.
  • Experience developing on Linux and supporting cross-platform environments.
  • Familiarity with performance profiling tools and CI/CD pipelines.

Assets

  • Experience with OpenMP, Rust, Fortran, cloud computing (GCP), containerization, or distributed systems.

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