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Python Flask Jobs in Ontario (NOW HIRING)

Releady

Senior Backend Engineer (SQL/Python)

Toronto, ON · On-site +1

CA$135/hr

Strong proficiency in Python and modern API frameworks (FastAPI, Flask, or similar). * Solid experience with SQL and relational databases (PostgreSQL, SQL Server, Snowflake, etc.). * Experience ...

US Mobile

Senior Backend Engineer

Toronto, ON · On-site

CA$140K - CA$180K/yr

Develop and maintain RESTful APIs using Java (Spring Boot or related web frameworks) or Python (Flask, Django) * Design and implement asynchronous service communication using RabbitMQ or AWS SQS/SNS

NTT DATA Services

AI Developer (REMOTE)

Toronto, ON · Remote

CA$84K - CA$146K/yr

Develop scalable backend AI services and APIs using Python frameworks such as FastAPI and Flask. * Create automated test cases and validation frameworks to evaluate AI outputs for reliability, bias ...

Citigroup

Python (expert‑level): FastAPI, Django, Flask, asyncio, PySpark - strong fundamentals in algorithms, data structures, concurrency, and design patterns. * Proficient in Java (Spring Boot, Spring ...

New

Magna

Software Engineering Co-op

Newmarket, ON · On-site

CA$21.08 - CA$25.46/hr

Construct Backend Frameworks using Flask and Python with connections to external sources and databases * Taking ownership to complete the Frontend development (UI/UX design, implementation) for ...

d1g1t

Senior Software Engineer, Backend

Toronto, ON · On-site

Production experience with Django, or deep experience with another Python web framework such as FastAPI or Flask. * Demonstrated experience owning features or technical projects from design through ...

d1g1t

Senior Software Engineer, Backend

Toronto, ON · On-site

Production experience with Django, or deep experience with another Python web framework such as FastAPI or Flask. * Demonstrated experience owning features or technical projects from design through ...

Dominion Dynamics

Comfort with lightweight Python web frameworks (Flask, FastAPI, or similar), SQL databases, and relational data modeling. * Experience with one or more of: Android, ATAK/TAK plugin development, AWS ...

New

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All JobsPython Flask JobsPython Flask Jobs in Ontario

Python Flask information

See Ontario salary details

$54K

$135.5K

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How much do python flask jobs pay per year?

As of Jul 8, 2026, the average yearly pay for python flask in Ontario is $135,506.00, according to ZipRecruiter salary data. Most workers in this role earn between $116,000.00 and $155,000.00 per year, depending on experience, location, and employer.

What are some typical daily responsibilities for a Python Flask developer?

As a Python Flask developer, your daily tasks often include designing and building web application features, developing and maintaining RESTful APIs, and troubleshooting code issues. You'll frequently collaborate with front-end developers, QA engineers, and product managers to ensure seamless integration and alignment with project goals. Keeping codebases well-documented and participating in code reviews are also common aspects of the role. Additionally, you'll likely be involved in deploying applications to production environments and staying updated with industry best practices for security and performance.

What is a Python Flask job?

A Python Flask job typically involves developing web applications using the Flask framework, a lightweight and flexible web framework for Python. Responsibilities may include building APIs, handling request-routing, integrating with databases, and deploying applications. Flask developers often work with front-end technologies and cloud platforms to create scalable and efficient web solutions.

What are the key skills and qualifications needed to thrive in the Python Flask position, and why are they important?

To thrive as a Python Flask developer, you need a strong command of Python programming, a thorough understanding of Flask web framework concepts, and experience with RESTful API design and implementation. Familiarity with tools such as Git, Docker, and relational databases, as well as certifications in web development or related fields, are often beneficial. Excellent problem-solving skills, effective communication, and the ability to work collaboratively in agile teams set standout candidates apart. These skills ensure high-quality, scalable application development and efficient teamwork in a dynamic tech environment.

What are popular job titles related to Python Flask jobs in Ontario? For Python Flask jobs in Ontario, the most frequently searched job titles are:
What job categories do people searching Python Flask jobs in Ontario look for? The top searched job categories for Python Flask jobs in Ontario are:
Python Flask jobs near you
Infographic showing various Python Flask job openings in Ontario as of July 2026, with employment types broken down into 1% As Needed, 89% Full Time, 3% Part Time, 6% Contract, and 1% Summer. Highlights an 81% Physical, 6% Hybrid, and 13% Remote job distribution, with an average salary of $135,506 per year, or $65.1 per hour.

Senior Backend Engineer (SQL/Python)

Releady

Toronto, ON • On-site, Remote

CA$135/hr

Contractor

Posted 16 days ago

Job description

OVERVIEW

We are seeking a Senior Backend Engineer with strong expertise in Python and API development to design and build scalable, data-driven backend systems. This role focuses on developing secure RESTful APIs, building ETL frameworks, and integrating data across cloud-native environments.

The ideal candidate has hands-on experience with FastAPI (or similar Python frameworks), strong SQL proficiency, and experience working with analytics, reporting, or data-heavy applications in enterprise environments.

Contract: 9-12 months, potential to extend / convert
Fully remote but must be able to come into the office in financial district (Toronto) for meetings at times
8am - 5pm
Hourly Rate: $135 (incorporated); $117 (T4)
RESPONSIBILITIES

  • Design, develop, and maintain scalable RESTful APIs using Python (FastAPI preferred).

  • Build and support ETL/data ingestion frameworks to process structured and semi-structured data.

  • Integrate with internal and external APIs, data platforms, and cloud storage solutions.

  • Write efficient, optimized SQL queries for analytics and reporting use cases.

  • Implement secure authentication and authorization mechanisms (e.g., OAuth2, JWT).

  • Deploy and maintain services in containerized cloud environments (Docker/Kubernetes).

  • Collaborate with cross-functional teams including data engineers, frontend developers, and product stakeholders.

  • Contribute to CI/CD pipelines, testing strategies, and code quality standards.

  • Optimize backend performance, reliability, and scalability for high-volume data systems.

QUALIFICATIONS

  • 5+ years of backend development experience.

  • Strong proficiency in Python and modern API frameworks (FastAPI, Flask, or similar).

  • Solid experience with SQL and relational databases (PostgreSQL, SQL Server, Snowflake, etc.).

  • Experience building ETL pipelines or data processing workflows.

  • Hands-on experience with cloud platforms (AWS, Azure, or GCP).

  • Experience with containerization and orchestration (Docker, Kubernetes).

  • Understanding of secure API development practices (OAuth2, JWT, RBAC).

  • Familiarity with CI/CD pipelines and version control systems (Git).

  • Experience working in enterprise or regulated environments is a plus.

  • Strong problem-solving skills and ability to work independently in a fast-paced environment.

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability status, or other non-merit factor. We are committed to creating a diverse and inclusive environment for all employees.