python backend engineer jobs in Toronto

At Affim, 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. As we build Affim's advertising platform and evolve Marketplace into a best in class shopping destination, the ability to route and discover is one of the greatest levers for...

About the role: What's in the Box Our New Ventures team is focused on growing our global footprint by launching our core products in new markets and expanding across multiple brands and verticals. We’re a globally distributed team operating across 7+ brands in 15+ countries, building desirable products and seamless, engaging experiences that customers...

Motion Recruitment in Downtown Toronto is seeking two Go Engineers for a full-time, hybrid role. You will build 100% backend services in Golang, focusing on microservices, databases, and cloud infrastructure to simplify complex industrial data. The ideal candidate has 5+ years of backend experience, strong Go skills, PostgreSQL, Linux, and cloud experience,...

Join a dynamic data engineering team as a Python Developer, focusing on high-performance data processing pipelines. Leverage your expertise in modern Python frameworks to manage large datasets efficiently and deliver robust data solutions. As a key member of the team, you will design, develop, and maintain scalable data pipelines while working with...

Python and SQL specialists can shape data quality as Data QA Engineers based in Canada, supporting web extraction and AI-assisted solutions. This Data QA Engineer role requires at least five years in QA, software testing, data testing, or data quality assurance. You will translate customer requirements into measurable standards and prevent defects before...

Build Java and Kotlin backend infrastructure for conversational AI solutions on a hybrid schedule in downtown Toronto. Focus on high-scale services and data architecture.This intermediate Backend Software Engineer joins a Platform Engineering team at a large financial technology company. You will develop microservices, routing layers, relational databases,...

Analytics, Insights, & Artificial Intelligence Pay Details: $120,000 - $250,000 CAD The pay details posted reflect a temporary market premium specific to this role that is reassessed annually. TD is committed to providing fair and equitable compensation opportunities to all colleagues. Our compensation policies and practices have been designed to allow...

Marketing & Privacy Engineering (MPE) builds trusted, privacy-aware consumer web experiences and measurement systems that enable sustainable growth. Within MPE, the Marketing pillar owns affirm’s Logged-Out Web experiences, web experimentation, client-side tagging, marketing technology integrations, attribution, and measurement. As a Senior Software...

Affirm, Inc. is seeking a senior engineer to own workload safety standards for its EKS fleet and drive end-to-end enforcement across the organization.You will lead design reviews, mentor engineers, and advance automation and guardrails to keep workloads compliant from day one. The role emphasizes deep Kubernetes expertise, Go or Python proficiency, and a...

About the Team DoorDash is building the world's most reliable on-demand, logistics engine for delivery! We're looking for experienced engineers to join our fast-growing engineering team to help us develop a 24x7, global infrastructure system that powers DoorDash's three-sided marketplace of consumers, merchants, and dashers. About the Role We're looking for...

Design reliable backend systems with Python or Go at Tucows Domains, working remotely from Canada on APIs, databases, and production software.As a Senior Backend Software Engineer, you will build and maintain services supporting Tucows Domains products. This hands-on individual contributor role provides technical direction across multiple systems while...

Virtusa is seeking a Senior Salesforce Backend/API Developer in Toronto to design, build, and maintain backend services and APIs on the Salesforce platform. The role focuses on Experience Cloud implementations, case management enhancements, and CI/CD-driven deployments within a collaborative, cross-functional environment.You will work with tools like...

Python and SQL specialists can shape data quality as Data QA Engineers based in Canada, supporting web extraction and AI-assisted solutions.This Data QA Engineer role requires at least five years in QA, software testing, data testing, or data quality assurance. You will translate customer requirements into measurable standards and prevent defects before...

Tata Consultancy Services (TCS) is an equal opportunity employer, and embraces diversity in race, nationality, ethnicity, gender, age, physical ability, neurodiversity, and sexual orientation, to create a workforce that reflects the societies we operate in. Our continued commitment to Culture and Diversity is reflected in our people stories across our...

CLR3 in Toronto is growing its engineering team. You will design, build and ship backend services, APIs and data pipelines that run in production, collaborating with a small senior team. We work on real-time, high-throughput systems including streaming pipelines, RPC infrastructure and data platforms. You will own what you build, including monitoring,...

Roles & Responsibilities 4-6 years of hands‑on experience in AI/ML engineering in cloud environments Strong proficiency in Python, SQL and ML frameworks Knowledge of P&C Insurance, Rating Experience with GCP Experience building and deploying ML models Excellent problem‑solving, communication and leadership skills Must be located in...

Tata Consultancy Services Canada Inc. is seeking an experienced Sr.Software Engineer – Contact Centre Innovation & GenAI to drive innovation, implement cloud capabilities, and build GenAI solutions for global contact center environments. In this role you will participate in design, development, and rollout of foundational cloud capabilities, collaborate...

Design backend payments systems with Python, cloud services, and service-oriented architecture while shaping financial transaction flows. This position is based in Canada. As a software engineer with at least five years of experience, you will build, deploy, scale, and maintain production services. Your work covers core banking, ACH, wire, card, and digital...

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...

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...