Top Software Engineer Jobs in Toronto

Build the enterprise platform for an AI creative product, including workspaces, roles, permissions, SSO, audit logging, usage-based billing, invoicing, and payment infrastructure. Design scalable APIs and multi-tenant architectures, strengthen security and reliability, and create React/Next.js administrative experiences. Partner with founders, sales, and customers to deliver enterprise requirements, establish engineering practices, and help shape the enterprise engineering team.

Design and build high-quality margin and collateral software solutions across the full development lifecycle. Collaborate with product and users, implement RESTful APIs, apply TDD and clean-code practices, and work in a fast-paced, global engineering environment using Java/React/Python and SQL.

Design, develop, and deliver features for a patient engagement and eReferral platform. Work across a three-week Agile sprint cycle on solution design, implementation, code review, testing, and delivery. Collaborate with product managers and developers, contribute to technical decisions, and share knowledge via learning days to improve platform scalability, reliability, and maintainability.

Lead technical strategy and roadmap for Affirm's Online Storage platform. Design and build scalable, multi-region datastore solutions, automation control planes, and operational tooling for hundreds of databases. Drive cross-team collaboration, reliability, monitoring, and mentor engineers while delivering high-impact backend and database features.

Design, develop, and manage scalable AWS cloud services powering the AssistIQ platform. Build platform capabilities, serverless applications, CI/CD automation, infrastructure-as-code, deployment monitoring tools, and AI-assisted engineering workflows. Evaluate technologies, provide technical guidance, maintain documentation, support product planning, and participate in production on-call rotation while collaborating across teams and with executives.

Design and build an AI assistant and proprietary AI systems for residential property management. Own end-to-end development from ideation to production, maintain high code quality, ship product features, and lead cross-functional engineering efforts.

Build full‑stack Pinner‑facing features, lead product development from ideation through release, partner with design/product/backend teams, prototype and run A/B tests, employ automated testing, and architect scalable solutions used by millions.

The Intermediate Software Engineer will develop educational technology products, collaborating with teams and maintaining high-quality standards through the software development lifecycle.

The Software Engineer will design and implement systems across the stack, focusing on AI-native engineering principles, distributed systems, and high-performance data processing.

Leads frontend feature design and delivery for Autodesk Forma’s Admin Console micro-frontend platform. Translates product requirements into engineering tasks, establishes frontend architecture and quality standards, mentors developers, makes system design decisions, and participates in production on-call support. The role focuses on React and TypeScript development, shared frontend practices, and customer-centered product engineering in a hybrid Vancouver or Toronto office environment.

Build and operate scalable, low-latency APIs, event-driven services, integrations, and web applications supporting membership and loyalty experiences. Integrate and extend Antavo with commerce, CRM, CDP, marketing, and data platforms. Apply distributed-systems, reliability, observability, and security practices; troubleshoot production issues; contribute to reusable engineering assets; and mentor junior engineers.

Leads quality engineering for consumer-facing web and mobile experiences. Designs scalable automation frameworks, develops functional, API, integration, regression, and end-to-end test suites, and integrates quality gates into CI/CD pipelines. Validates accessibility, performance, reliability, and cross-device behavior; investigates defects, analyzes quality metrics, and drives continuous improvement. Collaborates with product and engineering teams, mentors engineers, and applies AI-assisted testing practices.

Design, build, optimize, and support scalable consumer-facing mobile applications across iOS and Android using React Native, TypeScript, and JavaScript. Develop native integrations, reusable components, secure architectures, API integrations, automated testing, CI/CD pipelines, and production monitoring. Collaborate cross-functionally, contribute to releases and Agile delivery, mentor engineers, conduct code reviews, and drive mobile engineering excellence, accessibility, performance, and reliability.

Build quality engineering frameworks, test suites, CI infrastructure, and developer tools for distributed Core Banking and Risk systems. Lead shift-left quality practices, diagnose operational bottlenecks, analyze defect data, influence engineering teams, mentor junior engineers, and communicate quality metrics to leadership. The role is approximately 75% hands-on development and 25% team influence, mentorship, and adoption efforts.

Design, architect, and develop native Android features across the full SDLC. Own cross-functional, multi-platform system design, implement and test solutions, improve engineering practices, and mentor junior mobile engineers.

The Staff Software Engineer will architect scalable systems, improve development tooling, drive observability, mentor peers, and enhance technical quality across teams.

Develop backend Trust and Safety tools, features, and distributed systems that protect Lyft riders and drivers. Lead safety features from concept through launch, collaborate with product, design, policy, and engineering partners, write maintainable and tested code, participate in reviews and on-call rotations, and promote engineering best practices through knowledge sharing.

The Software Engineer will lead the development of Baseten Voice AI, focusing on real-time model serving systems, collaboratng with teams on architecture and implementation.

Design, implement, and release scalable iOS features and frameworks working with product, design, and backend teams. Prototype, run A/B tests, apply automated testing, and use AI responsibly to speed workflows while ensuring quality, data protection, and maintainability for millions of users.

Responsible for building decision-making frameworks for multi-aircraft wildfire suppression, developing algorithms, and ensuring real-time software performance. Collaborates with engineers and firefighters for system validation.

The Senior Software Engineer will develop mission simulation infrastructure, integrating various systems and ensuring safety-critical features for autonomous firefighting operations.

The Software Engineer, Perception develops autonomous aircraft systems to detect and manage wildfires using real-time data processing and machine learning techniques.

Lead the design and implementation of scalable Java microservices, data platforms, and batch and real-time pipelines. Optimize lakehouse technologies, event-driven architectures, cloud-native deployments, data quality, governance, observability, and performance. Establish schema contracts, testing, monitoring, SLAs, SLOs, and automated validation. Provide technical leadership, mentor engineers, collaborate with product, analytics, and AI teams, and drive modernization and engineering best practices as a hands-on contributor.

Join Clio's Toronto engineering team to build scalable, reliable web applications (primarily Ruby on Rails). Collaborate in agile, cross-functional teams, review code, optimize databases, mentor peers, and help deliver high-quality SaaS products while applying AI to improve engineering and product outcomes.

As a Software Engineer at Zip, you'll design and build core products and features, collaborate with teams, write high-quality code, and develop AI-driven features while tackling complex technical challenges.