Top Software Engineer Jobs in Toronto

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 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.

As a Staff Software Engineer, you'll design and deliver a core data platform, focusing on architecture, pipeline components, and AI integration. This hands-on role emphasizes creating production code and establishing technical standards within a small team.

As a Staff Software Engineer at Juniper Square, you'll lead architectural decisions and develop AI-powered systems, mentoring engineers and ensuring high-quality technical standards while collaborating with cross-functional teams.

Develop and optimize embedded software systems, mentor junior engineers, collaborate with cross-functional teams, and ensure software performance and reliability.

Develop and optimize embedded software for diverse hardware platforms, lead software architecture efforts, mentor junior engineers, and ensure quality through testing and collaboration with cross-functional teams.

The Senior Software Engineer will enhance search features, fix bugs in Elasticsearch, and work collaboratively on search relevance improvements, while utilizing Java extensively.

The Lead Robotics Software Engineer will develop key functionalities of Dapster's robot technology, focusing on motion planning and navigation algorithms.

Lead ownership of Dapster's robotic system, writing code for sensors and interfaces, integrating devices, and contributing to foundational technology.