python backend engineer jobs in Toronto

Sonata Software, with over $1.2 Billion Revenue, is a leading AI-first Modernization Engineering company, powered by our unique PlatformationTM framework. Our 6400+ AI Engineers are helping enterprises transform from systems to intelligent business platforms leveraging partner ecosystem to drive speed, efficiency and growth. Our bouquet of Modernization...

As a Senior Data Engineer at Tubi, you'll be instrumental in developing and maintaining robust data processing pipelines that underpin our reporting, analytics, and performance insights. You'll operate as an embedded data engineer within a specific data product vertical, shaping the culture, best practices, and overall approach to data engineering within the...

Technology Data and AI Technology (DAT) Engineering supports BMO's Digital-First, risk, regulatory and compliance requirements by building data and AI products that provide timely actionable insights to drive desired business outcomes and value. DAT Engineering collaborates with multiple groups across the bank deliver hundreds of initiatives every year...

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...

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...

Join Spotify's Platform team as a Senior Backend Engineer focused on authorization and permissions systems. Leverage your backend expertise to support Spotify's growing creator ecosystem and enhance security. As a pivotal member of the Authorization team at Spotify, you will design and operate backend services crucial for managing access across Spotify's...

About Rules Cube and MediCoreRules Cube is a Toronto-based digital transformation and Pega consulting firm with offices in Canada, the US, Mexico, and Latin America.MediCore is Rules Cube's AI-powered patient access and clinic operations platform. It helps health systems, clinics, and diagnostic networks streamline scheduling, intake, referrals, and...

About Turing Turing 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 Role We’re looking for experienced, hands-on software engineers to help evaluate and improve AI coding models. Rather than...

We are looking for an ambitious Python Engineer/Developer. You are passionate about technology but very pragmatic in the application of it to real-world engineering problems. You are experienced in launching new products and scaling them. Critical thinking and problem-solving skills are essential for this role.As a Python Engineer, you will contribute in a...

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...

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 infrastructure....

Build scalable Java backend services remotely for Just Eat Takeaway.com from Alberta, Manitoba, or Ontario. Apply strong system design expertise. As a Senior Java Developer, you will support the Logistics Areas and Fees team. You will architect, develop, and operate distributed systems for delivery calculations. The work includes Java 21, REST APIs, message...

JOB SUMMARY Seeking a Software Developer V with a strong backend focus to design and review services and REST APIs. This role involves leading the orchestration of multiple upstream services, guiding the team on scalable and stateless service design, and defining API contracts, error handling, and resiliency patterns. The developer will support team members...

Cohere is looking for a Backend Engineer to specialize in optimizing model inference systems. In this remote-first role, you will create low-latency serving infrastructure for advanced backend services. Candidates for this position must have over five years of backend engineering experience and strong programming skills in Go, Rust, or C++. You'll work on...

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...

Senior Backend Engineer building SaaS systems with data, machine learning, and AI capabilities for Kaseya’s global IT platform. This hands-on senior or staff role leads backend architecture and technical direction across product areas. You will create scalable systems, integrate ML and AI into customer workflows, and collaborate with Product, Design, and...

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...

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...

About d1g1t d1g1t is an institutional-grade enterprise wealth management platform built for financial advisors, multi‑family offices, broker‑dealers, and bank advisor networks. The platform replaces fragmented legacy systems with a unified solution for portfolio management, advanced analytics, risk management, reporting, and operational workflows across...

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...