senior backend software engineer python jobs in Toronto

Join BitGo as a Senior Backend Engineer focusing on mobile solutions in Toronto. You'll design robust APIs and enhance the user experience for retail clients. In this full-time role at BitGo, you will collaborate intensively within the Mobile Engineering team to develop scalable services that empower our API-centric platform. With 6+ years of server-side...

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 Forma Data Delivery group at Autodesk is looking for a Senior Software Developer to help build reliable, scalable data products and platform capabilities for the construction industry. We are looking for a hands-on developer with strong backend engineering fundamentals, thoughtful API design skills, and experience building production-grade cloud...

We’re working with a group of well-funded, fast-scaling hardware and AI companies building next-generation compute platforms - from AI accelerators to advanced silicon and compiler stacks in the heart of Toronto. We’re looking for Senior to Staff-level Compiler Engineers to join teams tackling problems at the intersection of software, hardware, and...

Responsibilities: Leading and rapidly building end-to-end features from scratch for Loopio's platform. Going beyond writing Python or Java: designing and shipping reusable frameworks and shared libraries that raise the bar for how every team at Loopio builds, so good patterns scale instead of being reinvented. Proactively build technology to prevent bugs as...

About Us HONK is modernizing parking payments across North America. We help municipalities, universities, and private operators move from physical infrastructure to digital permits, mobile payments, and smarter operator tools. We process hundreds of millions of dollars in payments a year and over 2 million transactions a month. HONK has just been named to...

View all jobs Senior Software Engineer, Agentic Systems Toronto, ON Engineering Hybrid Full-time Asepha is based in New York and Toronto, building agentic solutions that re-imagine how medications are prescribed, verified, and supported across the pharmacy ecosystem. Backed by $4M in funding and trusted by multiple Fortune 50 healthcare organizations,...

Curinos empowers financial institutions to put customers at the center of every decision. Our AI-first platform transforms proprietary data, advanced analytics and deep financial services expertise into timely recommendations - delivered right where teams work. The result: confident decisions, stronger customer relationships, and lasting, profitable...

Senpilot builds AI agents that help utilities operate smarter, faster, and more reliably, automating everything from engineering workflows to regulatory filings and compliance. Our mission is to create the intelligence layer for the modern grid: AI systems that understand utility data, reason across it, and act autonomously to improve safety, resilience, and...

The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders - only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their...

PostGrid is a global leader in enterprise SaaS platforms for automated offline communications. Our robust APIs empower organizations to create, personalize, and dispatch physical mail letters, postcards, checks, and more to any address on the globe without ever touching an envelope, while ensuring clean address data. Operating at a massive scale across...

About Us Marble is building an AI-powered tax assistant and preparation platform that transforms how accounting firms and their clients handle tax season. We’re targeting the pain points of mid-to-large size accounting firms with intelligent tools designed to streamline complex tax workflows. We’re early stage, highly collaborative, and deeply focused on...

Granum is the leading software company devoted to serving landscapers and arborists across North America, providing intuitive, industry-specific solutions designed to help them improve and grow their businesses while impressing their customers. Granum brings together three of the most trusted software names in the industry — LMN, SingleOps, and Greenius...

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships...

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...

Design scalable backend services with Python, Go, and Kubernetes for Achievers’ Data Intelligence team in a hybrid Toronto setting. Build actionable insights from SaaS data.As a Senior Software Engineer, you will support reporting, analytics, exports, and data-driven product features. You will work with GCP, APIs, cloud data warehousing, and distributed...

Requisition ID: 49891 Business Unit: Fitch Group Category: Information Technology Location: Toronto, ON, CA Date Posted: Oct 7, 2026 Senior Software Engineer, Full-Stack Applications – Python Fitch Ratings is seeking a Senior Software Engineer to join our global Ratings Technology team in Toronto. You'll build and maintain mission-critical full-stack...

Build and deliver complex enterprise software solutions for financial services clients. The Role As a Senior Software Engineer at Capco, you’ll design, develop, modify, maintain, and support complex web-based products and customer applications. You’ll work across the full software development lifecycle, contributing to technical decisions, software...