backend python jobs in Toronto

eleven-x is transforming the parking experience through its industry-leading parking technology: a sensor-based space-occupancy monitoring solution and comprehensive software platform that enables frictionless parking. Our solution includes our own hardware, firmware, network solutions, web applications, and mobile applications. Customers rely on our...

Movable Ink scales content personalization for marketers through data-activated content generation and AI decisioning. The world’s most innovative brands rely on Movable Ink to maximize revenue, simplify workflow and boost marketing agility. Headquartered in New York City with close to 600 employees, Movable Ink serves its global client base with...

React and Python define this Full Stack Developer contract with MLSE Sport Performance Lab, supporting coaching applications across multiple projects.This 12-month independent contract reports to the Director, Software Engineering. You will develop web features, APIs, and mobile support using React, Python, AWS, and React Native. The team focuses on...

Elevate your career with Mozilla as a Senior Backend Engineer on the Ecosystem Services Team. Contribute to backend systems that power Firefox and prioritize privacy and security. In this role, you'll own backend services, ensuring their reliability and health in production. Collaborate closely with frontend engineers and product managers while leveraging...

Expert Full Stack chez Dialogue, vous dirigez React, React Native et Python pour relier automatisation backend complexe et expérience fournisseur fluide. Au niveau Staff, vous guidez l’équipe AXe et contribuez à l’évolution de ServiceOS. Vous supervisez la stratégie technique de bout en bout, de la modularité frontend à l’évolutivité backend....

Transform the future of AI solutions as a Senior Full-Stack Software Developer at Intact. Embrace a hybrid work model and contribute to innovative AI projects. This role will have you at the forefront of creating AI-powered applications. You will utilize your skills in Python, React, and AWS to build powerful, distributed systems. The emphasis on teamwork...

Miratech helps visionaries change the world. We are a global IT services and consulting company that brings together enterprise and start-up innovation. Today, we support digital transformation for some of the world's largest enterprises. By partnering with both large and small players, we stay at the leading edge of technology, remain nimble even as a...

Build high-traffic APIs with Python, Go, or Rust at Perplexity, shaping infrastructure for developers and AI agents at global scale. As a backend engineer on the API Platform team, you will design, implement, and operate mission-critical interfaces. Your work spans distributed systems, API gateways, routing, performance optimization, and agent orchestration....

US Mobile is building the future of wireless communication. The goal: one unified network open to any person and any device, worldwide. Connection without walls. We’re getting there by empowering customers. All three major networks on one phone and one plan, plus home internet from Starlink. No lock-in. No commitments. Custom fit plans at every price...

Build secure identity services at Affirm using Python or Kotlin while working remotely from eligible Canadian provinces. Authentication is central to this customer-facing engineering work. As a mid-engineering Software Engineer II in Information Security, you will contribute to customer identity and access management capabilities. You will develop backend...

Miratech helps visionaries change the world. We are a global IT services and consulting company that brings together enterprise and start-up innovation. Today, we support digital transformation for some of the world's largest enterprises. By partnering with both large and small players, we stay at the leading edge of technology, remain nimble even as a...

Build sport coaching applications with React and Python at MLSE’s Sport Performance Lab, supporting web, API, and mobile development. This Full Stack Developer contract supports multiple research and development projects for MLSE professional teams. You will develop React features, Python and AWS APIs, and React Native mobile applications. The work...

Design, build, and maintain backend financial and payments systems flows (e.g., core banking, ACH, wire, card, and digital asset transaction processing).Influence software architecture and lead design decisions for the Platform, with particular focus on payments and money-movement systems.Develop, test, and launch new features and releases for the...

Reports to: Director of Software Type: Full-Time Location: Ottawa or Toronto Location AuraNet is Dominion Dynamics' mesh networking platform for autonomous assets working in contested and disconnected environments. It has to move data securely and in real time over links that aren't conventional wired networks, where bandwidth is scarce, connections...

Thomson Reuters is looking for a Senior Backend Engineer with AI expertise to develop robust backend services. Contribute to real-world AI systems in a hybrid work setting. In this pivotal position, you’ll design and optimize backend architectures for AI-powered products tailored for the tax and accounting sector. Engage with complex systems, ensuring...

We are seeking a hands-on, self-directed Senior Python Developer to support delivery within the Total Fund Management Portfolio Management Technology team. This role demands high autonomy, ownership of outcomes, and the ability to deliver working solutions with minimal oversight. RESPONSIBILITIES Own timelines and deliverables, proactively managing scope,...

Build backend systems with Python, Java, Node.js, or Ruby as an Associate Software Engineer in Toronto, working in a hybrid model.This Associate Software Engineer role requires at least one year of professional development experience. You will build, deploy, and maintain complex applications while collaborating with designers, product managers, and...

Build secure identity services at Affirm using Python or Kotlin while working remotely from eligible Canadian provinces. Authentication is central to this customer-facing engineering work. As a mid-engineering Software Engineer II in Information Security, you will contribute to customer identity and access management capabilities. You will develop backend...

STACK IT Recruitment Inc. is seeking an Intermediate Full Stack Python Developer to join a financial software team building portfolio management tools for banks and institutions. You will own features from conception to release, spanning backend services, frontend interfaces, and data layers, with hybrid work in Toronto. The role blends Python (FastAPI) on...

Build autonomous agents with Python engineering expertise for Outlier, working remotely as a freelance contributor on flexible schedules.This freelance opportunity suits engineers with two or more years in backend engineering, AI automation, or complex systems integration. You will help train large language models to function as proactive, multi-step agents....