Top Software Engineer Jobs in Toronto

The Principal Software Developer leads Salesforce solutions design and development, ensuring alignment with enterprise architecture and advocating for best practices in technical standards and integration.

The Senior Staff Software Engineer will lead web platform architecture and development, mentoring engineers while driving improvements in infrastructure, web development strategy, and AI tool integration.

Build and scale the signup and onboarding experience using React and Node.js, run A/B experiments, develop third-party integration entry points, collaborate with Product/Design/Data Analytics, maintain full-stack features, and participate in on-call rotation to ensure a reliable production environment.

Frontend-focused full-stack developer responsible for implementing React components and state, integrating with Go services and Python data pipelines, participating in design and code reviews, leveraging AI tools to accelerate development and tests, following TDD and security-driven practices, and contributing to system architecture and maintenance.

Design, build, test, and ship full-stack features for Sun Life’s advisor platforms. Develop Java and Spring-based backend services, React front ends, APIs, and database integrations. Modernize legacy applications, participate in technical discussions and Agile ceremonies, assess system impacts, and deliver work within sprint commitments. Contribute through code reviews, pairing, troubleshooting, and engineering best practices. Occasional travel and periodic weekend or after-hours support may be required.

Build full‑stack features that automate reporting and slide/document generation: database models, async workflows, UI components, AI insights, native charts, data sync optimizations, and integrations with BI and content platforms.

Lead technical design and delivery of secure, scalable, cloud-native banking platforms. Provide hands-on architecture and code leadership across microservices, APIs, event-driven systems, observability, and production support. Drive reliability, performance tuning, incident response, modernization, DevOps practices, and mentor engineering teams to reduce risk and accelerate delivery of payments and banking capabilities.

Own the architectural evolution of Robinhood’s core infrastructure across service mesh, Kubernetes compute, and Terraform provisioning. Lead multi-region platform resiliency, diagnose issues at the Kubernetes, etcd, Envoy, and Terraform provider layers, contribute upstream when appropriate, and drive cross-functional architectural decisions. The role requires deep infrastructure expertise, production Go or Python development, and the ability to influence complex engineering organizations.

Lead design and delivery of scalable, fault-tolerant microservices; take end-to-end ownership from design through production; drive architecture and technical decisions; reduce technical debt; troubleshoot production incidents; collaborate with product and QA; champion testing, CI/CD, security, and observability; use AI developer tools to accelerate development.

Lead modernization of large .NET applications into modular microservices. Design scalable APIs, embed observability and secure-by-default patterns, improve resilience and performance, mentor engineers, and coordinate cross-team solutions and incident response.

Design and build high-performing web applications on a next-generation platform. Collaborate with product, UX, and engineering teams to implement microservices and microfrontends, troubleshoot complex issues, drive CI/CD and quality practices, mentor teammates, and champion clean code, usability, and performance.

Lead design and implementation of features for the Business Acquisition domain, ensure security and scalability, mentor junior engineers, collaborate with product and engineering managers, write and maintain clean full‑stack TypeScript code, drive architecture and cross-team best practices, and produce documentation and tests for maintainable systems.

The Principal Software Engineer will integrate AI frameworks with cloud infrastructure to enhance performance and reliability, develop prototypes, and collaborate closely with the product team to meet constraints and requirements.

The role involves analyzing software requirements, contributing to software development, mentoring developers, and leading design/code activities in a big data context.

Design and develop next-generation web engine; innovate architecture for performance and resource consumption, with insights on web technologies.

Lead the design and deployment of AI multi-agent systems on cloud platforms, integrate AI models, and collaborate with a global team.

The Research Engineer will design agentic software systems, focusing on AI agents' collaboration in software engineering, prototype frameworks, and optimize engineering processes.

Design, build, and operate TypeScript microservices and integrations that run the billing lifecycle, including payment and CRM integrations, event-driven workflows, entitlement enforcement, provisioning pipelines, admin tooling, testing, on-call incident response, and mentoring engineers to ensure reliable, auditable financial workflows.

The Staff Software Engineer will architect and build scalable solutions for Cloudera's Data Platform, contribute to Apache Spark, enhance engineering processes, and work with large-scale distributed systems.

Design and deliver high-quality WPF-based medical device software. Lead architecture, implement complex modules, ensure code quality with unit tests and CI, leverage AI tools with human oversight, execute integration/system testing, maintain documentation, troubleshoot issues, and mentor junior developers.

As a Staff Software Engineer, you will design, build, and scale backend systems for a financial platform while providing technical leadership and collaborating cross-functionally.

Lead design and implementation of foundational platform components (authentication, API gateways, interservice communication, caching, shared libraries). Mentor engineers, drive cross-team alignment on architecture, own features end-to-end, improve developer experience, and ensure high availability, performance, and security while shipping frequently and modernizing core systems.

As a Principal Software Developer, you will lead the technical direction and implementation of Autodesk's Viewer platform, drive architectural practices, and mentor engineers across teams.

Design, build, and operate end-to-end ML pipelines and platform tooling for model/versioning, deployment automation, A/B testing, monitoring, CI/CD, and production reliability. Mentor engineers, collaborate with ML scientists and infra teams, and maintain security, compliance, and documentation.

Design, develop, and enhance low-latency front-office pricing and risk applications for electronic trading. Build high-performance, event-driven, multi-threaded systems; implement CI/CD and automated testing; support production; collaborate with Sales, Trading, Quantitative Research, and Infrastructure; provide technical leadership and mentoring within Agile teams.