Jobs for senior python backend at Toronto

1,000 senior python backend job listings in Canada. Find daily updated positions from leading job boards.


  • Toronto, Ontario, Canada Ascii Group, LLC Full-time

    We have a position which is suitable to your skillset. Please go through the below JD and let me know your interest. Title : Senior Full Stack AI Engineer Location : Toronto, Montreal, Calgary, Edmonton, and Vancouver Canada Relevant Experience (in Yrs.): 6+ years Detailed Job Description: Responsibilities AI-Native Interfaces: Build responsive UIs...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Jaide Health Full-time

    Elevate AI performance at Wealthsimple as a Senior LLM Infrastructure Engineer. Design systems that enhance AI initiatives and ensure efficient high-performance model serving. This role within the Machine Learning Infrastructure team allows you to be at the forefront of AI technology. Collaborate with skilled professionals to create scalable architectures...


  • Toronto, ON, Canada Veracity Ventures Inc. Full-time €110,000 - €150,000 Contract

    Senior Full-Stack Software Developer - 2-6 Years experience - Location: Canada - Employment Type: Full-Time Key Responsibilities - Design, develop, test, and maintain scalable web applications. - Work across both frontend and backend development. - Build and integrate RESTful APIs and third-party services. - Write clean, maintainable, and efficient...


  • Toronto, Ontario, Canada Polluxa, Inc. Full-time

    Elevate your career at Armstrong Fluid Technology as a Senior Enterprise Developer. Bring your expertise in Python, C#, and .NET to modernize legacy systems and develop microservices. This senior hands-on role involves joining the enterprise architecture team, where you will design, develop, and enhance applications while focusing on migrating legacy...


  • Toronto, ON, Canada Pace XL Ltd. Full-time €120,000 - €180,000 Contract

    This role can be located either in Toronto or Adelaide with hybrid working. Fleet Space is building the software platform behind ExoSphere, our end to end mineral exploration solution powered by space and AI. The platform brings together geophysical survey results, large scientific datasets, interactive 3D visualisation, machine learning predictions,...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Capital One Canada Full-time

    Step into a technical role as a Backend Engineer Intern with Capital One Canada. This position offers hands-on experience in API development and cloud technology in a supportive work culture. In this role within Team Interstellar, you will be involved in creating backend solutions that enhance customer experience and ensure regulatory compliance. You'll...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada HelloFresh Full-time

    Join HelloFresh's Ingredient to Product tribe as a Staff Backend Engineer. This position in Toronto focuses on building scalable solutions and driving operational success through cutting-edge technology. This role involves strategic collaboration with business leads and engineering teams to address technical gaps and manage production systems. You’ll set...


  • Toronto, Ontario, Canada Armstrong Fluid Technology Full-time

    Armstrong Fluid Technology is a global leader in innovative fluid flow solutions. We are committed to engineering excellence and delivering high-quality products and services that drive efficiency and sustainability for our customers. We are seeking a highly skilled Enterprise Developer to join our enterprise architecture team. This role is ideal for a...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Draftaid Full-time

    Draftaid started by auto-generating manufacturing drawings from 3D CAD parts. We are now building the intelligence layer for mechanical engineering. What you’ll do Build product features end-to-end: Node backend, React/TypeScript frontend, Postgres Create interactive interfaces for viewing and annotating 3D and 2D CAD data Integrate with our geometry...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Tekshapers Full-time

    We are looking for an experienced Senior Machine Learning Engineer to support the AI CoE’s Machine Learning and Data Science initiatives. The ideal candidate will have strong hands-on experience building, deploying, and operationalizing machine learning solutions in cloud environments, with expert knowledge of SQL and Python and deep experience with...

  • Senior ai engineer

    2 days ago


    Toronto, ON, Toronto Census Division, ON; Ontario, Canada Société Financière Manuvie Full-time €113,000 - €163,000 Temporary

    As a Senior AI Engineer, you will be responsible for Full-Stack Software Development i.e. building modern, cloud-based, and AI-enabled applications that help Manulife make decisions easier and lives better. You will contribute to the design, development, and delivery of scalable and secure enterprise applications while integrating AI capabilities into...

  • Software Engineer, Backend Premium

    5 days ago


    Toronto, Ontario, Canada Camunda Remote Full-time $127,300 - $209,300 Contract

    Camunda is the enterprise platform for agentic orchestration, enabling organizations to coordinate AI agents, people, and systems across complex, end-to-end business processes. With built-in governance, auditability, and human oversight, Camunda gives enterprises the control they need to move AI from pilots to production — safely and at scale. Trusted by...


  • Toronto, ON, Canada Reffie Full-time €90,000 - €120,000 Contract

    Reffie is a full-featured workflow operating system for residential leasing teams across the United States and Canada. Property management software hasn’t meaningfully changed in decades. Leasing teams still juggle a dozen inboxes, spreadsheets, and portals to do their jobs. We’re replacing that mess with one fast, modern platform that consolidates...


  • Toronto, ON, Canada Questrade Financial Group Full-time €100,000 - €140,000 Contract

    Senior Backend Engineer, Crypto and Alternative Trading Products North American Centre, 5700 Yonge St #210B, North York, ON M2M 4G3, Canada Job Description Posted Wednesday, August 19, 2026 at 4:00 AM Questrade Financial Group (QFG), through its companies - Questrade, Questbank, Questrade Wealth Management, Community Trust Company, Zolo, and Flexiti,...


  • Toronto, ON, Canada United States Digital Space LLC Full-time €130,000 - €170,000 Contract

    Elevate your career as a Senior Developer Productivity Leader in our Toronto office. Spearhead initiatives that enhance developer experience through AI and innovative tooling. Our company is on a mission to revolutionize finance by empowering developers. This role will see you architect systems that improve software delivery while optimizing team workflows....


  • Toronto, Ontario, Canada Passage Full-time

    Who We Are Imagine a world where your birthplace doesn’t limit your dreams. 🌍 That’s what Passage is here to create. We aren’t just a bridge of financial support; we connect families all around the world to life‑changing opportunities. We believe in a future where deserving students can pursue their dreams & ambitions—even if their parents...


  • Toronto, Ontario, Canada Thomson Reuters Full-time

    Senior Software Engineer - AI (Materia AI) Are you excited about building AI-driven software that redefines how professionals work? Join a dynamic and highly skilled team at Thomson Reuters, where we combine the agility and innovation of a startup with the stability and resources of a global leader. As a Senior Software Engineer, you will play a pivotal role...


  • Toronto, Ontario, Canada Supernova Technology Full-time

    Advance your career with Supernova Technology as a Senior Software Engineer, responsible for designing the architecture of our cutting-edge cloud solutions. This hands-on role emphasizes secure, scalable design in the realm of securities-based lending. Founded in 2014, Supernova merges technology with finance to create a powerful platform for...


  • Toronto, ON, Canada Jobgether Full-time

    Join a dynamic team as a Senior Backend Software Engineer focusing on the Integrations Platform in Canada. Take charge of developing robust backend services and mentorship while leveraging advanced integration techniques. You will lead the design and implementation of scalable APIs, enhance the self-service development process, and optimize performance...


  • Toronto, Ontario, Canada Worky Full-time

    Job Description WHAT IS THE OPPORTUNITY? RBC Capital Markets is a leading global investment banking company dedicated to providing services in banking, finance, and capital markets to corporations, institutional investors, asset managers, and governments globally. The Funding and Liquidity Technology group within RBC Capital Markets' Quantitative and...