backend developer position jobs in Toronto

Architect and scale the backend infrastructure that powers EthosMR’s research, AI, and panel platforms, ensuring reliability, performance, and seamless integration across our digital ecosystem. Design and build scalable backend systems to support web applications, AI voice agents, and panel management tools (e.g., Talkback, Ethos Virtual AI, and client...

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)....

Insight Global is seeking a Senior C#/.NET Developer to support a large-scale application modernization within a Capital Markets technology environment. You will redesign a legacy backend platform, drive automation, and collaborate with business and technology stakeholders to deliver scalable solutions. You will work on complex backend systems using C#/.NET,...

Advance your career as a Lead Backend Engineer at Venn, the top B2B fintech in Canada. Take charge of building innovative banking solutions for modern entrepreneurs. In this role, you will lead the development of groundbreaking financial products tailored for Canadian businesses. With 5+ years of Java and 6+ years in backend development, your experience will...

Join us in building the future of finance.Our mission is to democratize finance for all. An estimated $124 trillion of assets will be inherited by younger generations in the next two decades. The largest transfer of wealth in human history. If you’re ready to be at the epicenter of this historic cultural and financial shift, keep reading.About the team +...

A top financial firm in Toronto is looking for an experienced Python Developer to develop and maintain backend systems and microservices. The role requires 5-7 years of backend development experience with strong Python skills. Responsibilities include building APIs, collaborating with stakeholders, and participating in code reviews. Competitive pay range of...

Robinhood Markets, Inc. is seeking a Staff Software Engineer for the Backend Platform in Toronto. You will set technical direction and lead multi-team initiatives to improve how backend systems are developed and operated, guiding adoption of platform capabilities and developer tooling.This role focuses on scalable, reliable systems and mentorship across...

At Affi, 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. The Streaming team at Affi is responsible for all things data and drives the strategy for event driven architecture, stream processing, data exploration, discovery and validation....

A leading tech company in Toronto is seeking a Java Backend Developer with 8+ years of experience. The role focuses on designing Java/Java EE solutions, developing Microservices and REST APIs, and utilizing technologies like Spring and SQL. Ideal candidates will have a solid understanding of integration patterns, Linux commands, and DevOps technologies. This...

Yoush Consulting is seeking a Back End Developer in Toronto to create innovative web applications for healthcare solutions. The role requires 3 years of development experience, preferably with Python, and involves working collaboratively with teams to improve and maintain systems.The ideal candidate will have strong analytical skills and proficiency in...

About StripeStripe is a financial infrastructure platform for businesses. Millions of companies - from the world’s largest enterprises to the most ambitious startups - use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work...

Secure Every Identity, from AI to Human. Identity is the key to unlocking the potential of AI. Okta secures AI by building a 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...

Terminal builds telematics data infrastructure for the commercial fleet industry. Commercial auto insurers and fleet software companies, including industry leaders like Intact Insurance, Penske, and Progressive, depend on our platform to access GPS, speeding, and vehicle data from 330+ telematics providers. We recently raised our Series A led by Battery...

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...

Senior Software Engineering, Backend (All Teams) We’re looking for Senior Backend Engineers to work on both Product and Product Platform based teams. Product focused Engineers work at the intersection of product and infrastructure to solve key business problems with elegant technical solutions. We expect Senior Engineers to be able to own projects...

A leading technology company located in Ontario is seeking an experienced backend developer to architect and scale the backend infrastructure supporting its research and AI platforms. The ideal candidate has over 5 years of backend development experience and is proficient in Node.js, Python, or Go. The role involves developing scalable systems, managing...

Insight Global is seeking a Senior C#/.NET Developer to support a large-scale application modernization within a Capital Markets technology environment. You will redesign a legacy backend platform, drive automation, and collaborate with business and technology stakeholders to deliver scalable solutions.You will work on complex backend systems using C#/.NET,...

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies—from the world’s largest enterprises to the most ambitious startups—use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount...

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...

Senior Software Engineering, Backend (All Teams) About the Role We’re looking for Senior Backend Engineers to work on both Product and Product Platform based teams. Product focused Engineers work at the intersection of product and infrastructure to solve key business problems with elegant technical solutions. You'll operate our backend services and...