Top Software Engineer Jobs in Toronto

Design, build, and maintain scalable full-stack web applications and APIs using React, TypeScript, Next.js and Node.js. Own features end-to-end, collaborate with product and design, improve CI/CD and developer tooling, migrate legacy systems, and mentor junior engineers while leveraging AI-assisted development.

Design, develop, document, and maintain Multiview financial software. Use AI coding agents and automated tools to triage and fix code, implement event-driven workflows, ensure security, analyze systems, collaborate cross-functionally, coach team members, and serve in functional leadership (Project Lead/Scrum Master). Contribute to customer-facing assessments and RFPs; apply ERP functional knowledge.

The Solutions Engineer will support the integration of Near Intents, assist developers, enhance product stability, and provide technical support to ecosystem partners.

Design, build, test, and deploy scalable full-stack Java-based web applications. Develop backend services and REST APIs, create responsive front-end components, optimize database performance, support CI/CD, participate in code reviews, mentor junior developers, and improve automated testing and deployment processes.

Build foundational agent infrastructure for an AI assistant: orchestration, tool execution, context management, evaluation, and trust/permissions. Ship reliable, observable, and secure backend systems, launch agentic features, own core infrastructure, participate in on-call, and mentor others.

Design, build, ship, and maintain end-to-end product features across frontend, backend, and data layers. Own projects from definition through production, improve reliability and scalability, collaborate with product and design, mentor engineers, and engage with customers to solve real user problems.

Own design, implementation, and production support of Windows kernel-mode enforcement drivers (filesystem, process/thread, handles, registry) and the kernel/user-mode enforcement boundary. Reduce enforcement latency at scale, extend enforcement to containers and isolation, ensure compatibility across Windows builds, handle driver signing and deployment, collaborate cross-platform on policy and the Rust userspace agent, and mentor engineers while driving technical direction and operational stability.

Lead macOS endpoint enforcement: design and own userspace agent, synchronous allow/deny path, Network Extension content filtering, performance and stability across macOS versions and hardware, mentor engineers, and represent macOS in cross-platform policy and architecture decisions.

Own and architect Linux kernel-space enforcement for an identity security platform using eBPF and BPF LSM hooks. Build kernel and userspace enforcement boundary, optimize syscall hot paths, extend enforcement to containers and Kubernetes, ensure portability across kernel versions, collaborate on shared policy/backend, mentor engineers, and drive production-grade, low-latency security enforcement.

Design and implement backend services, APIs, CI/CD and cloud infrastructure using IaC and Kubernetes. Build internal developer tooling, define observability and security standards, lead incident response, and mentor engineers while applying AI tools to improve productivity and delivery.

As a Staff Software Engineer, you'll lead software infrastructure development, drive AI innovation, mentor engineers, and collaborate across teams to build advanced applications.

Own and set technical direction for the Everand backend, building scalable, reliable systems for discoverability, personalization, and core consumption journeys. Drive architecture, platform health (CI/CD, staging, DBs, queues, cost, observability), mentor engineers, lead cross-team planning, modernize legacy systems, and partner with product, design, analytics, web/mobile, and ML to support experimentation and telemetry-driven decisions.

As a Software Engineer for Native Apps, you will drive initiatives across product areas, collaborate with teams, and build scalable features. Deep backend experience is required.

The role involves leading application systems analysis, programming, and managing development teams to implement new systems in coordination with the technology team, while ensuring compliance and best practices.

The Software Engineer will build and maintain internal developer tools, optimize CI/CD pipelines, and collaborate across teams to enhance developer experience and infrastructure reliability.

As a Senior Software Engineer, you'll collaborate with teams to build solutions, mentor junior members, ensure code quality, and drive best practices in a supportive environment.

The Sr Platform Engineer will develop and enhance platform services, ensuring reliability and security in healthcare applications while leading technical standards and fostering developer enablement.

As a Staff Software Engineer, you'll build scalable systems for the Tokenization Engine and mentor juniors, collaborating with cross-functional teams to enhance system performance and stability.

Senior full-stack engineer to build customer-facing features across banking, tax automation, and expense tracking. Work across backend APIs, MySQL/Spanner data models and React/TypeScript frontends. Own end-to-end delivery, improve architecture and reliability, mentor engineers, and drive engineering standards and debt reduction.

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 Software Engineer on the JavaScript SDK team, you'll innovate and enhance SDKs across multiple server runtimes, emphasizing AI tools, open-source contributions, and direct user engagement.

The role involves developing JavaScript SDKs, owning projects end-to-end, leveraging AI tools, engaging with open-source communities, and addressing user feedback directly.

As a Software Engineer, you'll design and optimize algorithms for real-time sensor data processing, collaborating with a talented team on high-performance solutions for autonomous driving.

Founding engineering member building an AI-driven life-sciences SaaS platform. Own features end-to-end from design to production support, drive technical solutions, enforce best practices, perform expert code reviews, and mentor engineers to grow the team and deliver scalable, high-volume products.

Lead development of an AI-first enterprise SaaS platform: own feature implementation from design to production, collaborate on technical design, mentor engineers, perform expert code reviews, define engineering best practices, and support production systems using AI-assisted engineering tools.