Top Software Engineer Jobs in Toronto

Develop features and frameworks for Hadoop, Spark, and Iceberg as part of eBay's Analytics Data Platform Team. Lead the design and implementation of technical solutions in a fast-paced agile environment focusing on big data applications.

Lead design and delivery of compliance and multi-region deployments, owning provisioning, infrastructure-as-code, application features (TypeScript/React Native), and CI/CD. Ensure architectural consistency, troubleshoot distributed systems, collaborate with security/compliance/product, and produce audit-ready documentation.

As a Senior Software Engineer, you will develop fintech products, manage system infrastructure, collaborate cross-functionally, and drive technical improvements.

As a Senior Full Stack Software Engineer, you will design, build, and iterate on product features, collaborate closely with customers and stakeholders, and set technical standards while mentoring junior engineers.

As a Software Test Engineer, you'll own manual testing, drive automation, develop test strategies, and collaborate on application quality and performance.

As a Sr. Software Engineer at VGS, you'll develop and maintain the Credential Management Platform and enhance the Event Pipeline, collaborating across teams to build high-throughput services.

The Senior Software Engineer II will work on building highly available, secure, and scalable compute layers for Kora, a managed data streaming service, while addressing complex distributed systems challenges.

Design, implement, and own end-to-end scanning engine components in Python and Go. Improve scalability, performance, and reliability for large distributed workloads; partner with product, security, and data teams; drive architecture, code quality, observability, and mentor engineers.

Build high-performance, scalable simulation infrastructure and tooling for autonomous vehicle development. Design systems for scenario generation, simulation execution, synthetic data, and reinforcement-learning workflows. Collaborate with ML, perception, and controls teams to improve realism, performance, and validation pipelines while writing production-quality C++ and Python code, contributing to architecture, testing, and documentation.

The Staff Software Engineer will design and implement core platform development, improve system foundations, and lead technical initiatives to enhance AI automation deployment across organizations.

The Senior Software Engineer will lead application development projects, enhance user-facing applications, and implement best software practices while collaborating on product direction.

The role involves developing and testing software stacks for networking devices, including embedded firmware and device drivers, for automotive applications.

The Software Development Engineer in Test (SDET) ensures quality through automated testing for core platforms in the Utilities & Energy sector, collaborating closely with software engineers to embed quality practices, enhance CI/CD processes, and expand automated test coverage.

The Senior Software Engineer will shape the architecture of a Fintech platform, focusing on backend microservices for payments, disbursements, and compliance. Responsibilities include system development, infrastructure management, cross-functional collaboration, and mentoring junior developers.

The Senior Software Engineer will own end-to-end projects, solve complex healthcare-related problems, collaborate with clinicians, and utilize AI tools to build production-grade software.

Design and develop embedded firmware for vehicles, optimize communication protocols, and collaborate across teams to enhance vehicle software performance.

Design, build and maintain automated test suites and CI/CD test pipelines for cloud services. Collaborate with developers and product owners to assess risk, ensure quality, and drive improvements in stability, reliability and usability while participating in Scrum ceremonies and mentoring team members.

Lead architecture and evolution of scalable, fault-tolerant backend systems powering real-time AI agents and conversation intelligence. Design data storage and retrieval, partner with ML engineers to operationalize AI, drive production performance, cost efficiency, observability, and mentor senior engineers while owning production reliability.

Lead design and implementation of highly scalable, secure backend services and APIs. Define architecture for databases and microservices, own projects end-to-end, resolve reliability/performance issues, improve CI/CD and observability, mentor engineers, and align technical strategy with product and security requirements.

Design, build, and optimize high-performance AI infrastructure systems to support intelligent agents, ensuring reliability and scalability for millions of users.

Design and build core operation platforms (scheduler, dispatcher, vehicle console, TMS) for autonomous trucking. Create durable object models, state machines, event-driven services, real-time operator tooling, APIs, and integrations. Ensure safety-critical workflows are observable and resilient while partnering with autonomy, operations, and product teams and driving engineering excellence.

Develop and maintain cloud forensics software to authenticate, acquire, and analyze internet data. Perform dynamic API analysis and reverse engineering, translate research into production code, collaborate with product and research teams, mentor peers, and drive projects to completion.

As a Senior Software Engineer - Infrastructure, you'll design deployment pipelines, manage cloud deployments, and ensure system compliance and observability, leading incident response and documenting processes.

As a Senior Backend Engineer, you'll design scalable backend systems, build foundational architecture, and manage complex projects within a voice AI-driven platform.

As a Senior Full-Stack Engineer at Retell AI, you'll develop scalable systems and intuitive interfaces, bridging backend integrations with frontend experiences, focusing on voice automation solutions.