backend developer position jobs in Toronto

OX Security is securing the AI-driven SDLC from prompt to production. We're building the next generation of security technology for a world where AI is changing how software is built, deployed, and attacked. We're looking for a strong Senior Backend Engineer to join VIBESEC, the team building our AI security products. This is one of the most exciting places...

Overview The Lead Backend Engineer on the AI Platform team plays a critical role in building, evolving, and leading the backend systems and engineering practices that power internal products, customer‑facing capabilities, AI‑enabled workflows, and operational decision‑making across the organization. This role combines hands‑on backend engineering...

About the Team DoorDash is building the world’s most reliable on‑demand, logistics engine for delivery! We’re looking for experienced engineers to join our fast‑growing engineering team to help us develop a 24x7, global infrastructure system that powers DoorDash’s three‑sided marketplace of consumers, merchants, and dashers. About the Role ...

About the team + roleWe are building an elite team, applying frontier technologies to the world’s biggest financial problems. We’re looking for bold thinkers. Sharp problem-solvers. Builders who are wired to make an impact. Robinhood isn’t a place for complacency, it’s where ambitious people do the best work of their careers. We’re a...

Transform the legal industry as EvenUp's AI Document Backend Engineer. In this hybrid role, you'll create scalable solutions that empower personal injury lawyers through technology. In the DocGen team, your expertise in backend development will be central to building systems that leverage AI for efficient document generation. This is an ideal role for...

This hybrid role requires working in the Toronto office two days per week. With millions of diners, 70,000+ restaurant partners and 25+ years of experience, OpenTable, part of Booking Holdings, Inc. (NASDAQ: BKNG), is an industry leader with a passion for helping restaurants thrive. Our world-class technology empowers restaurants to focus on what matters...

Elevate your career as a Senior Backend Engineer on Unity’s Diagnostics Team. This role emphasizes designing and maintaining critical systems that enhance game telemetry and reporting for developers. You will be at the forefront of developing backend solutions that handle large-scale data ingestion while ensuring high performance and reliability. Working...

Step into the role of Senior Software Engineer at Backstory, focusing on backend development for the Matching team. This position integrates advanced data insights and scalable system architecture. You will be responsible for designing algorithms and managing data pipelines that power essential features of Backstory's products. This role demands a commitment...

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...

About Us At Bettermode, we are redefining how businesses streamline customer experiences and foster strong relationships. Our platform empowers businesses to seamlessly craft powerful web apps with engagement tools in its core tailored to their unique needs. Backed by Silicon Valley investors and trusted by brands like Lenovo, Mercedes, and IBM, we're proud...

From Fivetran’s founding until now, our mission has remained the same: to make access to data as simple and reliable as electricity. With Fivetran, customer data arrives in their warehouses, canonical and ready to query, with no engineering or maintenance required. We’re proud that more organizations continue to leverage our technology every day to...

Explore the role of Staff Software Engineer with a focus on backend architecture and document analysis in a hybrid workplace. Bring your skills to a company committed to transparency and justice. This role targets seasoned developers with a strong backend emphasis to advance our document analysis platform. You'll focus on designing scalable services,...

At Swoop, our mission is simple: Improving patient outcomes. As a market leader in AI-driven, data-powered, and privacy-compliant healthcare engagement, we connect the signals that drive earlier diagnosis, better treatment decisions, and sustained adherence. Our integrated, privacy-safe platform, enables life sciences companies to drive measurable patient...

Elevate location search technology with Uber Maps as a Staff Software Engineer. Lead critical backend services and scalable systems while collaborating across teams in a dynamic environment. In this impactful role, you will set the technical direction for high-stakes Maps Search projects, from initial problem definition to full production delivery. You'll...

Virtusa is seeking a Senior Salesforce Backend/API Developer in Toronto to design, build, and maintain backend services and APIs on the Salesforce platform. The role focuses on Experience Cloud implementations, case management enhancements, and CI/CD-driven deployments within a collaborative, cross-functional environment. You will work with tools like...

Make a global impact with Stripe as a Backend Engineer focused on building ergonomic APIs. Join a team meeting evolving user needs through scalable financial solutions. Stripe is seeking a Backend Engineer to enhance its balance management platform and develop a new funds accessibility system. You'll collaborate with diverse teams, including Infrastructure...

At Cognichip, we are building AI-native tools that transform how semiconductor engineers create, verify, and optimize chips. Our platform combines large proprietary models, agentic workflows, domain-specific engineering intelligence, and high-performance simulation infrastructure to accelerate one of the world’s most complex engineering disciplines. ...

Join Obvio AI as a Backend Software Engineer to enhance road safety systems using AI technology. Collaborate with product, ML, and operations teams to build scalable and secure backend services. In this key role, you will contribute to the development of critical annotation workflows that power machine learning processes. With 3–5 years of backend...

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 +...

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 +...