Top Software Engineer Jobs in Toronto

Build and maintain an agentic platform that transforms high-stakes medical and legal casework into structured context. Work across the full stack: agent architectures, eval frameworks, data ingestion/indexing, and user-facing tooling. Ship workflows, design reliability-focused evals and guardrails, iterate with user feedback, and set patterns for AI-native development in a healthcare context.

Leads a software development team through the full product lifecycle, including user research, product strategy, roadmap planning, application development, testing, code reviews, documentation, team performance management, budgeting, partnerships, and user support. The role also manages Agile processes, reports metrics, develops funding proposals, and participates in conferences and periodic travel.

Own the architecture, scalability, security, reliability, and technical direction of critical AWS-based platform domains. Design distributed, event-driven backend services, data models, APIs, multi-tenant systems, and AI/ML infrastructure. Lead cross-team initiatives from design through release, establish engineering standards, mentor engineers, improve observability and delivery practices, and guide modernization while maintaining product quality and cost efficiency.

Design and implement the core components of the Agents Python framework, focusing on API and abstraction development for AI-driven applications.

Design and develop functionalities for the Agents framework, iterate on feedback, and create documentation while working with various programming languages.

Join Kobo's Web team to develop and maintain e-commerce features across front-end, back-end, CI/CD and infrastructure. Own requirements, implementation, testing, deployment and monitoring of customer-facing code, working in an agile team to deliver high-quality solutions.

Design, build and maintain a cloud-native, AI-first Cash & Intraday Liquidity Management platform. Deliver highly available, multi-region microservices, embed LLM tooling, ensure regulatory compliance, partner with risk/compliance, and drive engineering quality via CI/CD, testing, and Agile practices.

Designs, builds, tests, and evolves enterprise AI agents, workflows, services, and applications. Owns technical decisions, architecture, scalability, security, responsible AI guardrails, and technical debt. Collaborates with product, UX, and engineering teams, conducts code reviews, communicates designs, and mentors junior engineers. Requires strong experience with production AI agents, LLMs, RAG, prompt engineering, orchestration frameworks, and software development, with preferred expertise in C#, .NET, Python, containers, cloud deployment, and scalable APIs.

Full‑stack engineer who designs, implements, and owns features end‑to‑end across frontend, backend, and infrastructure. Build reliable, secure production systems, collaborate with product and support to resolve customer issues, and develop AI‑powered workflows and integrations. Emphasis on shipping quickly while maintaining stability and product judgment.

Integrate drones, sensors, payloads and third-party software into a fleet management platform. Write production-quality Java, C++, and Python code, debug across software, networking and hardware, test in simulation, lab and field, and own end-to-end integrations with vendors, pilots, and product teams.

Build an internal AI developer platform that provisions agent configs, context tooling, eval harnesses, and rollout mechanics to make AI-assisted engineering the default. Integrate LLMs and third-party coding tools, enable self-serve agent creation, embed safety and audit controls, and measure impact on developer productivity.

The Lead Robotics Software Engineer will develop key functionalities of Dapster's robot technology, focusing on motion planning and navigation algorithms.

Lead ownership of Dapster's robotic system, writing code for sensors and interfaces, integrating devices, and contributing to foundational technology.

Develop, integrate, and validate IVI software for AFEELA vehicles across applications, middleware, and OS components. Debug, test, and optimize performance; support UI/UX implementation, partner developer support, demo vehicle setups, and cross-regional collaboration while ensuring automotive safety compliance.

Develop high-performance frontend applications, collaborate with design and backend teams, ensure quality coding practices, and improve platform scalability and performance.

Build and own backend, data architecture, and integrations for operations. Replace manual workflows with automations and AI agents, ship internal tools, ensure reliable data flows, monitoring, and documentation, and support production systems used by ops.

Design and develop core backend components for a blockchain network using Rust, ensuring reliability and scalability in production-grade software.

As a Senior Software Engineer at Vanta, you will lead projects, set technical direction, develop product functionality, and mentor engineers, leveraging modern frameworks like TypeScript, React, and Node.js.

As a Software Engineer in Sustaining Engineering, you will resolve complex issues related to Ubuntu and open-source software, engage with upstream communities, and develop bug fixes while maintaining close collaboration with support and product teams.

As a Python and Kubernetes Software Engineer, you will develop data analytics solutions using open source tools, collaborating with a distributed team.

The software engineer will develop and operate backend services for Snap Store and Charmhub.io, focusing on clean APIs and feature implementation.

The role involves developing software for Linux-based systems on autonomous devices, optimizing performance and ensuring reliability in various hardware environments.

As a Software Engineer at Canonical, you will collaborate globally to shape open-source software operations, focusing on Python and Golang development, enhance DevOps workflows, and improve infrastructure operations for cloud computing solutions.

The role involves designing and delivering open source software operations code in Python, ensuring system reliability, and collaborating with teams across the Linux stack.

Build, maintain, and scale cloud-first microservices using TypeScript/Node.js. Contribute to front-end features with Angular, optimize SQL and NoSQL queries, use CI/CD pipelines, adopt AI-assisted tools, participate in Agile ceremonies, and collaborate with senior engineers to deliver reliable software.