python backend engineer jobs in Toronto

Build automated quality coverage for advanced AI-based scheduling software using Python APIs, Selenium, and CI/CD support. Remote candidates may visit Vancouver for team meetings.As a Senior QA Automation Engineer, you will maintain automation frameworks for enterprise products. You will create test plans, coordinate QA activities, and help ensure reliable...

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...

About TuringTuring is one of the world’s leading AGI infrastructure companies, working with frontier AI labs to accelerate model development through high-quality training data, evaluations, and engineering talent.About the RoleWe’re looking for experienced, hands-on software engineers to help evaluate and improve AI coding models.Rather than primarily...

Build reliable software with Python and AI at ZoomInfo, working remotely on applications, services, and data platforms for business teams. As a Senior Software Engineer, you will own complex technical projects from ambiguous requirements through production. You will use Python, SQL, APIs, data pipelines, and applied machine learning to create maintainable...

Join Tata Consultancy Services as a Quality Engineer specializing in Python and automation. Focus on implementing valuable ETL testing solutions to ensure high-quality software outcomes.TCS is looking for a Quality Engineer with a solid automation engineering background. You will leverage your advanced Python skills to design and maintain automated test...

Build AWS data pipelines with Python and SQL while migrating workloads from on-premises environments. Partner directly with business stakeholders in an enterprise transformation.This Data Engineer role supports large enterprise transformation initiatives focused on data integration and AWS migration. You will design pipelines, transform data, and contribute...

Earn Up To $50/hr as an OpenClaw Agent BuilderShape the future of autonomous agents like OpenClaw. Freelance, remote, up to $50 USD/hr. Weekly payments.Trusted by 10,000+ software engineers worldwideMIN EXP REQUIRED2+ yearsPAY RATEUp to $50 USD/hrEarn Up To $50 USD/hr— Plus Additional IncentivesRates vary based on expertise and project requirements. Paid...

Python and PySpark expertise anchors this senior Toronto role, combining production software engineering with client-facing data and AI application development. As a Forward Deployed Engineer at Apptoza Inc., you will embed with business users, client SMEs, product owners, and engineering teams. You will understand complex workflows, validate solutions...

Use Python and full-stack engineering expertise remotely to evaluate code for Turing’s large language model training initiatives. As a Software Engineering evaluator, you will create datasets, provide precise solutions, and correct code for AI research. The work emphasizes Python across backend services, data pipelines, and machine learning...

Senior Software Engineer (Python/Rust) - TorontoValidus is looking for a financial software engineer to join our back-end team. This team is responsible for designing, implementing and maintaining the systems and services powering the rapidly growing, award-winning technology offering at Validus.The back-end team is part of the broader technology team...

Build software for programmable logic devices at Altera in Toronto, using C++, Python, or Java within an engineering team. Gain hands-on development and testing experience.As a Software Intern, you will support software engineers across bug fixing, feature enhancements, and new product development. You will write documented code, participate in reviews, and...

Strengthen Stripe Radar with backend engineering and distributed systems expertise, building low-latency services that stop fraud and abuse at scale. This software engineering role focuses on products and infrastructure for businesses using Radar. You will work across backend services, enterprise APIs, and shared platforms. You will also bring new signals,...

About Genius AI Genius AI is building technology to help local businesses run themselves. Genius AI products do the admin work that keeps practitioners from the work they love and the people they serve. From GlossGenius to Reception, its products work 24/7 on busywork like booking, marketing, client management, finances, staff and inventory management, and...

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate...

Shape AI-ready data foundations and backend services for DNV’s Digital & Transformation work in Toronto, with a hybrid schedule. Use data modeling, SQL, and Python. This Senior Software Developer role supports scalable platform capabilities through data services, APIs, backend systems, and governed data assets. You will structure, validate, store,...

Build high-performance backend systems with Golang in a permanent hybrid Senior Software Engineer position focused on enterprise energy management. Shape scalable technology through microservices and cloud-native engineering. This Senior Software Engineer role centers on modernizing distributed architectures and developing intelligent, data-driven energy...

About Cognichip At Cognichip, we are building AI-native tools that transform how semiconductor engineers create, verify, and optimize chips. Our platform combines large proprietary models, agentic workflows, domain-specific engineering intelligence, and high-performance simulation infrastructure to accelerate one of the world’s most complex engineering...

TRADER Corporation is a trusted Canadian leader in online media, dealer and lender services. The company is comprised of AutoTrader.ca, AutoSync, and Dealertrack Canada. AutoTrader.ca (also known as AutoHebdo.net in Quebec) offers the largest inventory of new and used cars in Canada, with over 25 million monthly visits. AutoSync, with over 3,500 subscribers,...

Lead Research Engineer Do you love creating innovative solutions for customers?We are seeking a passionate Lead Research Engineer who will bring expertise in AI and ML and is interested in building data‑driven capabilities that drive transformation. As a member of Thomson Reuters Labs you will have a direct impact on our company by helping to create new...

Shape the future of data centers at Canonical as a MAAS Systems Engineer in Toronto. Utilize your Python development skills to enhance server operations and Ubuntu reliability. In this dynamic role, you will take charge of managing our Toronto lab operations at Canonical, where you will focus on developing MAAS software for server automation and network...