Top Software Engineer Jobs in Toronto

Technical leader designing scalable APIs and agent interfaces for autonomous advertising agents. Build high-throughput real-time systems, evaluate agent protocols, drive architecture, mentor engineers, and integrate external ad platforms.

As a Senior Software Engineer, you will enhance QA and Dev operations through automation tools, lead project initiatives, and establish best practices.

Lead the migration to GraphQL Federation, enhance API design and performance, mentor developers, and contribute to shared libraries while managing cross-team technical initiatives.

Lead the Jane Developer Platform team, enhancing extensibility and integrations while fostering AI adoption and strong product focus.

As a Senior Software Engineer at Lime, you'll design and build core backend systems for shared micromobility, collaborate across teams, and influence technology adoption. Your role includes solving technical problems and crafting scalable software for electric vehicles.

Design and build scalable services for Censys, leveraging distributed systems and collaborating with teams to enhance data-driven insights and product developments.

The Senior Software Engineer will lead design, coding, and testing in a modern agile environment, developing cloud and on-premise software using various technologies.

Lead design and delivery of enterprise web applications using Angular and .NET Core. Collaborate with stakeholders and cross-functional teams, drive architecture and technical decisions, mentor engineers, ensure high performance, security, and testability, and participate in agile ceremonies and CI/CD deployments.

Owner of end-to-end app experience and onboarding flows for a SaaS security platform. Build and maintain Python/Django backend services and APIs, design RBAC using Google Zanzibar, collaborate with Product/Design/CS, improve UX for personas, and measure success through adoption and time-to-value.

Lead a globally distributed Developer Tools team of 12 to define roadmaps and deliver high-quality Elasticsearch client libraries, integrations, and developer-facing tools. Partner with product and technical leads to prioritize work, ensure cross-language consistency, mentor engineers, and drive timely releases while balancing short-term delivery with long-term maintainability and developer experience.

Join Aviya Aerospace Systems as a Software Verification Engineer, focusing on the validation and verification of embedded software for flight control systems following DO-178C standards.

As a Staff Engineer, you'll lead the design of service discovery and communication in Robinhood's microservices, ensure high availability, collaborate on security policies, and mentor junior engineers.

The Staff Software Engineer will develop and deploy high-performance machine learning systems, optimizing large language models for production environments. Responsibilities include ensuring high availability and low latency for AI applications and working collaboratively across teams.

As a Senior Full-Stack Engineer, you will design and improve features for Slideshare, working with both frontend and backend technologies while collaborating with cross-functional teams.

The Senior Software Engineer will enhance backend development using Java and AWS, focusing on microservices and container orchestration, while fostering collaboration and independence in a hybrid work environment.

As a Senior Software Engineer, you'll optimize distributed databases, focus on query efficiency, and collaborate on SpiceDB features, enhancing performance and reliability.

The role involves analyzing and implementing product requirements, integrating voice recognition technologies, developing unit tests, and writing technical documents for a software development kit.

The Senior Software Developer will analyze product requirements, integrate voice recognition technologies, develop unit tests, and improve product performance across platforms.

The Senior Software Engineer will lead the technical direction for MAP Policy Partners, focusing on web scraping, Ruby on Rails maintenance, and automation of product development.

Design and develop software applications for logistics and supply chain operations, collaborating with teams to enhance service offerings and ensure robust functionality.

As a Senior Front-end Engineer, you'll design and maintain high-performance UIs, collaborate with cross-functional teams, and own critical frontend features for Temporal's products.

The Software Engineer II will support existing products through their lifecycle, executing firmware and software changes, ensuring compliance, and collaborating with cross-functional teams to resolve issues and improve product yield and reliability.

This role involves designing, productizing, and supporting SmartHLS C++ libraries for Microchip's FPGA and SoC products, focusing on development, testing, and training for customers and internal teams.

As a Software Engineer, you will develop and maintain high-performance FPGA design tools, focusing on compiler development and optimization, while collaborating with an agile team to enhance customer productivity.

As a Senior Software Engineer, you'll design and maintain scalable systems for containerized deployments, improve developer experience through CI/CD pipelines, and ensure observability and reliability in multi-cloud environments.