python backend engineer jobs in Toronto

Build mission-critical backend systems with C# and .NET at OpenTable, working hybrid from the Toronto office two days weekly. Support real-time reservation technology.As a Software Engineer II, you will design and implement services for inventory, availability, and reservation flows. The TMS Inventory team owns complex distributed systems where reliability...

A leading technology company in Toronto is seeking a Senior Software Developer. The ideal candidate has over 5 years of experience in JAVA-based software development, with proficiency in Spring framework and REST APIs. You will be responsible for troubleshooting software issues and translating specifications into applications. The position requires presence...

Affirm is hiring a Senior Software Engineer, Backend (Partner Merchant Interface) to join the Decisions Foundations Integration team. This remote Canada role focuses on APIs used by Partners and Merchants, powering integrations with major partners like Amazon and Stripe. You will design, develop and operate backend systems at scale using Python or Kotlin,...

At Affirm, we exist for the moments that matter- giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most.Affirm's engineering team is building a large-scale, highly available, and global infrastructure that is shared across multiple financial products. Ensuring that our infrastructure...

A health technology company is seeking an Internal Back-End Software Developer to enhance its remote health platform. This role requires expertise in back-end solutions, collaboration with cross-functional teams, and a strong foundation in programming, especially Java. The ideal candidate should have over 4 years of experience and knowledge of cloud...

Seeking a Data Engineer specializing in backend API development in Toronto, ON. This contract role focuses on the creation of internal APIs crucial for enterprise data integration, emphasizing REST and event-driven architectures. To qualify, candidates must be PR or citizens residing in Canada for at least five years. You will design and construct APIs that...

Step into the role of Senior Software Engineer at Backstory, focusing on backend development for the Matching team. This position integrates advanced data insights and scalable system architecture. You will be responsible for designing algorithms and managing data pipelines that power essential features of Backstory's products. This role demands a commitment...

Elevate your engineering career as a Backend Engineer at DoorDash, blending innovation with technology in a hybrid work model. Contribute to a global infrastructure system that enhances a three-sided marketplace. As a Backend Engineer, you will work with Product and Product Platform teams to craft elegant technical solutions that drive business impact. Your...

Capgemini Engineering in Canada is seeking a senior backend engineer to design, migrate, and operate the power ingestion, processing, storage, and lifecycle management of media across our platform.You will own multi-quarter modernization efforts, build event-driven pipelines with Kafka, ensure GDPR-like privacy controls, and collaborate with trust, privacy,...

Source Code is seeking a Sr. Software Developer - Back End in Toronto, Canada. The role focuses on server-side logic, database maintenance, and integration with front-end components. Strong API development and enterprise-scale experience are required.Applicants should have extensive .NET/C# experience and familiarity with Angular and Material Design....

HelloFresh Canada is seeking a Senior Software Engineer to advance backend systems in a hybrid Toronto environment. You will help design and maintain the Python‑based planning engine, build scalable APIs with FastAPI, and collaborate with cross‑functional teams to deliver robust, end‑to‑end solutions that power production planning.You will work...

Affi in Canada is seeking a software engineer for the Streaming team to design, build and scale backend systems using Python or Kotlin, with a focus on distributed data infrastructure and on-call reliability.You will collaborate with product, design and analytics, break down projects into phases, and contribute to growth through code reviews and mentorship....

Affirm is hiring a Senior Software Engineer, Backend (Partner Merchant Interface) to join the Decisions Foundations Integration team. This remote Canada role focuses on APIs used by Partners and Merchants, powering integrations with major partners like Amazon and Stripe.You will design, develop and operate backend systems at scale using Python or Kotlin,...

Elevate your career with Affir as a Backend Software Engineer in our remote Identity Decisioning team. Focus on developing backend systems that ensure consumer identity validation across all products. Affir is seeking a Software Engineer II to join its remote team in Canada. You'll design and launch robust backend systems, working with technologies such as...

Bree is seeking a Backend Engineering Co-op for an 8-month term to work on scalable backend services, APIs, and data flows. You'll collaborate with engineers to ship production-ready changes using TypeScript/Node.js and AWS Lambda, while learning through mentorship and real project impact. You'll contribute to testing, code quality, and security, and gain...

Epiq is seeking a Senior Software Engineer, Backend, AI Labs in Toronto to build and operate the services behind our AI-driven legal platform. You will work on asynchronous processing, data pipelines, the data access layer, and authentication/authorization to support scalable, multi-tenant systems.You will collaborate with AI engineers, other backend...

About the RoleWe’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. You'll operate our backend services and architecture that support all product functionality and...

Python and SQL specialists can build scalable data pipelines as Data Engineers in a hybrid consulting assignment, with two onsite days in Toronto. This long-term consulting job supports a major bank client. The Data Engineer will design automated pipelines, develop ETL processes, and process data using Python and SQL. The work also includes data validation,...

Python and PySpark expertise define this Data Engineering role, focused on AI applications, cloud platforms, and production-grade software engineering. Build and operationalize data and AI solutions using Python, PySpark, SQL, REST APIs, and FastAPI. The work spans ETL/ELT, batch and streaming pipelines, data quality, metadata, lineage, observability, and...

About Kaseya Kaseya is the leading provider of AI-powered IT management and cybersecurity software, serving Managed Service Providers (MSPs) and internal IT organizations worldwide. Our comprehensive platform helps organizations efficiently manage, secure, and automate their IT environments, driving operational efficiency and long-term business success. ...