backend software developer

At Affirms 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 Affirms 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...

Build AI-powered backend systems in Ottawa with Python, workflow orchestration, and scalable data-intensive architecture on a hybrid schedule. Own production software from design through delivery. askpolly seeks a Senior Software Engineer with 5–8 years of professional experience. You will design backend services, robust APIs, and agentic workflows for an...

Who we are:Sardine is the leading agentic risk platform for fighting financial crime. Our integrated solution unifies data across risk teams to help organizations stop fraud in real time, prevent AI-driven attacks, and automate fraud and AML operations. Sardine’s platform is strengthened by one of the fastest-growing fraud consortiums in the market,...

Elevate your career as a Senior Software Engineer with Mozilla, focusing on backend systems for Firefox and enhancing cloud infrastructure in a collaborative environment. The Mozilla Corporation seeks an experienced engineer to join the Ecosystem Services Team. This role requires strong expertise in backend technologies, collaborating with product managers...

Shape the future of procurement at Zip as a Backend Software Engineer. Your innovations will directly impact users through high-quality features and seamless collaboration. In this role, you will design and build products that are not only scalable but also resilient to challenges. Work closely with diverse teams to develop thoughtful solutions, write...

About BreeBree is a consumer finance platform that brings better, faster, and cheaper financial services to over half the Canadian population who live paycheck to paycheck. We operate in a huge, but overlooked market in a country with the least amount of financial technology innovation in the developed world. Our first act is to become the cheapest and best...

We are looking for a Software Engineer to join the Identity Decisioning team, responsible for building backend systems that validates consumer identity in all of affirm’s products by satisfying regulatory protocols like KYC The team partners closely with Product, Compliance, Auth, Fraud, and other engineering teams to deliver honest and transparent...

Drive innovation as a Senior Backend Engineer with Jonas Software, specializing in AI-first solutions. Embrace remote work to design and implement core backend systems in C#/.NET.In this pivotal role, you’ll shape a new SaaS application from the ground up. Seeking a seasoned engineer with expertise in Event Sourcing, CQRS, and Domain-Driven Design (DDD)....

Contribute to the future of legal technology as a Backend Software Engineer at Harvey in Toronto. Engage in a hybrid work model while creating innovative user-facing features and robust backend infrastructure. Our rapidly growing team is seeking engineers passionate about developing AI-powered solutions for leading law firms. In this role, you'll design...

Take your software engineering career to new heights with Asepha as a Senior Software Engineer in Toronto or New York. Focus on backend development and AI integrations that redefine medication management. As a key team member at Asepha, your role is integral to shaping our engineering direction and delivering innovative solutions in pharmacy technology....

At Affid, 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 affirm'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...

Architect high-throughput REST APIs with Python and Flask at Akamai, supporting resilient backend infrastructure for enterprise security platforms. As a Senior II Software Engineer, you will lead architecture, design, and implementation for high-performance backend systems. You will establish API standards, improve performance, and advance fault-tolerant...

Build scalable revenue systems with Vivid Seats as a Senior Software Engineer on the Orders team, using Java, Python, or Node.js. This hybrid role includes three in-office days weekly. You will develop and support production web applications powering Vivid Seats’ online ticket marketplace. The senior position emphasizes backend technologies, modern web...

About BreeBree is a consumer finance platform that brings better, faster, and cheaper financial services to over half the Canadian population who live paycheck to paycheck. We operate in a huge, but overlooked market in a country with the least amount of financial technology innovation in the developed world. Our first act is to become the cheapest and best...

Elevate your software engineering career as a Senior Backend Engineer at Justworks in Toronto, Canada. You'll lead significant projects, optimize existing systems, and directly impact customer experiences. As a Senior Software Engineer, you will independently manage large-scale projects from conception to launch. Collaborating with a diverse team, you will...

BitGo (NYSE: BTGO) is the digital asset infrastructure company delivering custody, wallets, staking, trading, financing, stablecoins, and settlement services from regulated cold storage. Since 2013, BitGo has focused on accelerating the transition of the financial system to a digital asset economy. BitGo maintains a global presence and multiple regulated...

Reports to:Director of SoftwareType:Full-TimeLocation:Ottawa or TorontoLocation 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 drop, and the...

About Us:Based in San Francisco, California, Turing is the world’s leading research accelerator for frontier AI labs and a trusted partner for global enterprises deploying advanced AI systems.Turing supports customers in two ways: first, by accelerating frontier research with high-quality data, advanced training pipelines, plus top AI researchers who...

About Us:Based in San Francisco, California, Turing is the world’s leading research accelerator for frontier AI labs and a trusted partner for global enterprises deploying advanced AI systems.Turing supports customers in two ways: first, by accelerating frontier research with high-quality data, advanced training pipelines, plus top AI researchers who...

Who We Are Every transaction matters. Every Canadian matters. At Interac, we protect both - driving trust, security, and inclusion, so our digital economy thrives. Founded in 1984, Interac connects Canadians through secure digital payments, advanced identity verification and industry-leading fraud protection. Connecting banks, businesses, and individuals,...