Top Software Engineer Jobs in Toronto

As a Senior Software Engineer in Data Acquisition, you'll design and build scalable data ingestion pipelines, ensuring performance, quality, and governance across various data domains and ingestion patterns.

The Software Engineer will build scalable backend services, optimize performance, and mentor peers, focusing on distributed systems development.

The Full-Stack Engineer will develop and maintain web applications, translating UI/UX designs into responsive apps, optimizing applications, and writing clean code.

The Full Stack Software Engineer will develop user experiences across web and mobile, integrating frontend and backend systems, manage APIs and databases, and ensure code quality through testing.

The Senior Full Stack Software Developer will design, develop and implement scalable applications, manage system architecture, mentor developers, and drive engineering excellence.

The role involves developing computational chemistry tools, implementing AI and physics-based simulations, and maintaining scientific software systems while collaborating with experts across various fields.

As a Senior Developer, you'll design, develop, and maintain software systems, mentor juniors, ensure code quality, and collaborate with teams for scalable solutions.

As a Senior Software Engineer, you will lead team initiatives, enhance mobile app performance, mentor junior members, and ensure quality in software delivery.

As a Staff Engineer for Nubank's Credit Card platform, you will lead architectural strategies, mentor engineering teams, and oversee complex system transformations while ensuring compliance in multiple regulatory environments.

The Staff Software Engineer will lead architectural decisions, mentor engineers, and design end-to-end features for a financial startup's cross-border banking platform, ensuring system reliability and overseeing technical strategy.

Design, build, and scale backend solutions for user acquisition and retention. Collaborate with teams and mentor junior engineers while maintaining high code standards.

Design and implement infrastructure platforms and tooling while managing complex technical projects and mentoring engineers to enhance system reliability and scalability.

The Senior iOS Developer will design and develop native iOS applications, integrate secure APIs, implement features, maintain quality, and collaborate across teams.

As a Staff Frontend Software Engineer, you'll develop critical infrastructure and user-facing features for a secure AI platform targeted at legal firms, collaborating across teams to ensure reliability and innovative solutions.

As a Staff Backend Software Engineer, you'll design and build backend infrastructure, lead development of enterprise features, and ensure system reliability processes for Harvey's AI-powered tools.

The Senior Software Engineer will lead the technical roadmap for AI initiatives, architect LLM systems, and mentor engineers while collaborating with product teams to design technical solutions.

As a Software Developer II, you'll implement .NET solutions, maintain quality assurance, collaborate with teams, minimize technical debt, and advance your skills using AI-driven tools.

Lead frontend engineering to build polished, high-performance React+TypeScript interfaces for enterprise AI collaboration. Own end-to-end UI features, design system components, optimize performance, and collaborate with design and backend teams to deliver secure, reliable experiences for lawyers and organizations.

Develop and enhance gameplay features for NFL Universe Football, focusing on quality, scalability, and player engagement. Collaborate with creative teams and participate in code reviews.

Build and maintain backend foundations and developer tooling for an internal developer platform: design platform primitives, GraphQL APIs, CI/CD workflows, event-driven patterns, OpenAPI golden paths, and AI-native integrations to accelerate developer productivity.

Provide technical leadership and architecture direction for enterprise SaaS platforms and distributed systems. Lead cross-team initiatives, drive scalability, reliability, security, observability, and platform modernization. Influence technical strategy, run architecture and design reviews, reduce technical debt, and mentor senior engineering staff.

Design and build foundational backend infrastructure (authentication, permissions, feature flags, notifications, document integrations), evolve an internal product platform, lead enterprise-facing features for multi-party collaboration, and ensure security, privacy, and reliability for sensitive legal data while collaborating cross-functionally.

The Senior Software Engineer II will design and build backend features, evolve AI-native workflows, and enhance the payment infrastructure while collaborating closely with product teams to deliver high-quality solutions.

Design, build, and operate production AI systems, enhance backend services, improve reliability, and collaborate on technical projects within the AI-native engineering team.

As a Senior Software Engineer, you will develop core data pipeline components for an AI-native data warehouse, oversee feature delivery, and ensure data quality and reliability.