python backend engineer jobs in Toronto

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


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Cognizant Technology Solutions Corporation Full-time

    Build scalable Python applications and AI-driven solutions remotely from Canada, focusing on Generative AI, LLMs, and enterprise engineering. This experienced Python and AI Engineer role requires 8+ years of software engineering experience. You will develop enterprise applications, backend services, and reusable AI APIs. The work spans LLM orchestration,...


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

    Build scalable Python applications and AI-driven solutions remotely from Canada, focusing on Generative AI, LLMs, and enterprise engineering. This experienced Python and AI Engineer role requires 8+ years of software engineering experience. You will develop enterprise applications, backend services, and reusable AI APIs. The work spans LLM orchestration,...


  • Toronto, Ontario, Canada Alignerr Remote Full-time US$50 - US$75 Permanent

    Principal Python Engineer — ML Infrastructure (AI Training) About The Role What if your Python expertise could directly shape the infrastructure that powers the most advanced AI systems in the world? We're looking for a Principal Python Engineer in Toronto to design and build the data pipelines, annotation tooling, and evaluation systems that leading AI...


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

    We are hiring a Bookkeeper to maintain accurate financial records, manage daily accounting tasks, and assist with payroll and financial reporting. Full-time Key Details Schedule - Monday to Friday Location - Etobicoke, ON Time - 9:00 AM to 5:00 PM Key Responsibilities Maintain accurate financial records and bookkeeping entries. Manage accounts...

  • Cloud Engineer

    2 days ago


    Toronto, ON, Canada SPECTRAFORCE Full-time

    A leading IT consulting firm in Toronto is seeking an experienced Cloud Engineer proficient in AWS or Azure to join their cloud engineering team. The ideal candidate will have strong hands-on experience with cloud solutions, IaC tools, and modern programming languages. The position aims to enhance secure and automated cloud deployments within a collaborative...


  • Toronto, ON, Canada Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision! Full-time $100,000 - $130,000 Contract

    A leading technology firm is seeking an experienced L4 Engineer to support modern data engineering and application development. This hybrid role requires strong expertise in Azure data services and hands-on experience with technologies like Azure Databricks and Java Spring Boot. Candidates must demonstrate excellent problem-solving skills and coding...


  • Toronto, Ontario, Canada Astra-North Infoteck Inc. ~ Conquering today's challenges, achieving tomorrow's vision! Full-time

    A technology firm in Toronto is seeking a Front-End Developer to design and develop responsive, user-friendly interfaces using modern frameworks. The role requires collaboration with designers to implement UI/UX best practices and optimize performance for speed and accessibility. Strong problem-solving skills and the ability to mentor junior members are...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Affirm, Inc. Full-time

    Affim is seeking a software engineer to help design, build, and scale backend systems using Python or Kotlin. You will work with AWS, Kafka, Flink, and Kubernetes within a distributed architecture, delivering robust features in a remote-first environment across Canada. You will join the Streaming team, break down work into phases, collaborate with product...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Validus Risk Management Full-time €80,000 - €100,000 Temporary

    Validus is looking for a Platform Engineer to join our growing platform team. You'll help improve and support our AWS infrastructure, CI/CD pipelines, and internal developer tooling, working closely with experienced engineers and other technical teams. The platform team is part of the broader technology team working in collaboration with quants, frontend...


  • Toronto, ON, Canada Manulife Full-time $86,000 - $136,000 Contract

    Manulife is seeking a Full Stack Engineer to craft next‑gen intelligent, cloud‑native apps. You will work across the stack—from React frontends to Python backends and AI components.You will implement LLM‑powered solutions, RAG techniques, and data pipelines with Azure Databricks, AKS, and MongoDB/Cosmos DB. Join a team that values secure, scalable...


  • Toronto, ON, Canada Scribd, Inc. Full-time

    Scribd, Inc. is seeking a senior backend engineer to own the Content Library and Core Infrastructure for its production datastores. You will design and implement Rust services, oversee deployments, and collaborate with data, ML, and product teams at scale. This role requires deep Rust and Python, experience with AWS and data formats like Parquet/Arrow, plus...


  • Toronto, Ontario, Canada Mindrift Full-time

    Mechanical Engineer with Python Experience – Freelance AI Trainer1 week ago Be among the first 25 applicantsThis opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English. At Mindrift, innovation meets opportunity....


  • Toronto, Ontario, Canada Outlier Full-time

    Outlier is seeking OpenClaw Agent Builder contractors to shape autonomous agents for real-time AI environments. This freelance, remote role offers up to $50 USD/hr with flexible hours and weekly payments.You'll work on end-to-end agent design, evaluation, and optimization, collaborating with top AI teams to improve LLM-driven orchestration and multi-turn...


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

    Kaseya is hiring a Senior Backend Engineer (SaaS, Data & AI) in the Toronto area. You will lead backend design, APIs, and data/ML integration for multi-tenant SaaS platforms, partnering with Product, Design, and Data teams to drive scalable, high-impact features. The role emphasizes hands-on development, system reliability, and mentoring engineers while...


  • Toronto, ON, Canada BiblioCommons Full-time $110,000 - $130,000 Contract

    Job Description BiblioCommons is a Toronto-based software company that builds SaaS solutions for public libraries. Our team is passionate about making public libraries accessible, delightful and engaging, while having fun at the same time. Job Summary BiblioCommons is a Toronto-based software company that builds SaaS solutions for public libraries. Our team...


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

    We’re looking for Senior Backend Engineers to work on both Product and Product Platform based teams. Product focused Engineers work at the intersection of product and infrastructure to solve key business problems with elegant technical solutions. We expect Senior Engineers to be able to own projects end-to-end and mentor their junior and mid level peers....


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Fivetran, Inc. Full-time

    Fivetran is seeking a Staff Software Engineer, Backend to advance the Reverse ETL product line. You’ll integrate data activation across authentication, billing, data models, and UI as a senior member of a distributed, agile team. This full-time role is based in Toronto or Oakland with a hybrid work model offering remote flexibility and in-person...


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

    Explore innovative AI solutions as a Senior Software Engineer at Cresta, focusing on backend system integrations. Collaborate to create world-class customer experiences through technology. Cresta is on the lookout for a Senior Software Engineer to work on its Core Platform, supporting critical backend integrations for enterprise clients. This role combines...


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

    Outlier invites experts to shape the future of autonomous agents like OpenClaw. This freelance, remote role offers up to $50 USD/hr and weekly payments. Most contributors spend 5-10 hrs/week, with potential to scale earnings based on project needs. Join a platform trusted by thousands of engineers worldwide, where you can choose flexible scheduling and...


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

    Outlier is seeking OpenClaw Agent Builder contractors to help shape autonomous agents. This remote, freelance role offers up to $50 USD/hr with flexible, non-mandatory hours and weekly payments. Contributions support AI development and multi-step agent orchestration. Ideal candidates have 2+ years in backend engineering or AI automation, with a track record...