python backend engineer jobs in Toronto

Senior Software Engineer, Backend - Platform Team Cresta unlocks the true potential of the customer experience, turning every conversation into a competitive advantage. Cresta’s unified AI platform combines conversational AI agents, real-time human agent augmentation, and comprehensive conversation intelligence to drive revenue and efficiency gains across...

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, fault-tolerant, and global infrastructure that is shared across multiple financial products, merchants, and vendors. Ensuring...

The Batch Developer Experience team makes batch development and testing faster and more reliable at affirmAs a developer on this team you will partner with product and infrastructure engineers to build the tools and systems that streamline workflows, strengthen testing and ultimately improve the reliability of affirm’s critical batch workloadsWith the...

Senior Software Engineering, Backend (All Teams) About the Role 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. You'll operate our backend services and...

Scotiabank in Toronto is seeking an Intermediate Java Developer to join the Global Payments Engineering team. You will design, develop, and maintain backend services with Java and Spring Boot, and collaborate with QA and product teams to deliver reliable solutions. You'll work on Kafka-based messaging, relational databases, RESTful APIs, and participate in...

Affrim is seeking a Staff Software Engineer to lead Observability. You’ll own the architecture of our telemetry pipeline, balancing reliability, performance, and cost for 200+ TB/day. You’ll design log-sampling strategies to reduce volume while preserving signal during incidents. You’ll shape how observability fits into agentic development, mentor a...

Movable Ink seeks a Senior Backend Developer to lead the evolution of our AI-driven, distributed recommendations engine. You will design scalable services for content personalization, collaborate across ML and product teams, and own components from architecture to deployment. You will mentor engineers, uphold coding standards, and drive observability and...

S'more about the team The Menu Operations team ensures the accuracy, reliability, and consistency of data and workflows across our ecosystem. This role will focus on automated data validation, cross-system reconciliation, monitoring, troubleshooting, and developing scalable solutions that improve data quality and operational efficiency. The role will work...

Doppel is building the future of social engineering defense with an AI-native platform that protects executives, employees, customers, and brands from phishing and AI-powered threats. We design scalable systems that monitor billions of entities and deploy adaptive AI agents backed by human analysts to disrupt attacker infrastructure.We are seeking an...

Build scalable healthcare APIs with Java and Spring Boot at Teladoc Health Canada, supporting virtual care workflows through reliable backend systems.As a Backend Software Engineer, you will design, build, and operate services used across critical healthcare workflows. You will collaborate with senior engineers, product managers, frontend, QA, and platform...

Sproutlogic Consulting in Toronto, Canada, is seeking a Software Engineer to develop full lifecycle product features and maintain high-quality codebases. The role focuses on server-side Java development, API design, and scalable services within a collaborative team environment.The ideal candidate has 1–3 years of software engineering experience, strong OO...

A leading IT services company in Toronto, Ontario, is looking for a Java Developer to design and maintain back-end applications. Ideal candidates will have over 5 years of experience with Java and REST API Microservices, alongside knowledge of Agile practices. A commitment to enhancing development processes and familiarity with security concepts is...

Are you ready to redefine the future of work with cutting-edge AI? At Cresta, we're on a groundbreaking mission to supercharge the effectiveness of knowledge workers, making them 100x more productive, 10x faster, and 10x better. Responsibilities: Play a substantial role in the Cresta Virtual Agents engineering team. Work with Cresta product and engineering...

A renowned gaming company is seeking a Senior Go Developer for a full-time, hybrid position in Toronto. The role focuses on backend microservices development in a high-scale environment. Candidates should have over 5 years of Go experience and understand Go concurrency, frameworks, and SQL databases. The position offers the opportunity to lead strategic...

Armstrong Fluid Technology invites a senior, hands-on Enterprise Developer to join our enterprise architecture team. You will design, refactor, and migrate applications using Python, C#, and .NET while modernizing legacy systems with microservices and cloud-native approaches. You will work on AWS-based cloud deployments, containerization with...

Terminal builds telematics data infrastructure for the commercial fleet industry from Toronto. You will own end-to-end backend systems, shaping APIs and platform components used by customers to access data from 330+ providers. Join a team that ships at scale, with in-person collaboration in downtown Toronto. Expect to work on TypeScript/Node.js services...

The Role We're looking for a Staff Backend Engineer to join our Customer Value Optimization (CVO) tribe at HelloFresh. This is a high-impact individual contributor role sitting at the intersection of Data Science and Backend Engineering. You'll be the technical bridge that turns ML models into reliable, scalable production systems. You'll work across...

Commit in Toronto is seeking a Senior Backend Engineer to join the Customer Focus Group (CFG). You will design and maintain backend services and APIs, translating customer needs into product improvements. The role emphasizes infrastructure, performance, scalability, and customer satisfaction, with collaboration across Product, Engineering, Sales, and...

Robinhood Markets, Inc. is seeking a Staff Software Engineer for the Backend Platform in Toronto. You will set technical direction and lead multi-team initiatives to improve how backend systems are developed and operated, guiding adoption of platform capabilities and developer tooling. This role focuses on scalable, reliable systems and mentorship across...

A digital transformation firm in Canada is seeking a Senior System Engineer to support clients with implementation projects across North America. The role demands experience in designing and deploying technical services, along with outstanding communication skills. Candidates should have a Bachelor’s degree and proficiency in various scripting and...