Top Software Engineer Jobs in Toronto

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

Develop and maintain enterprise software applications, focusing on back-end development, API development, and ensuring application security while contributing to software improvement processes.

Responsible for building decision-making frameworks for multi-aircraft wildfire suppression, developing algorithms, and ensuring real-time software performance. Collaborates with engineers and firefighters for system validation.

The Senior Software Engineer will develop mission simulation infrastructure, integrating various systems and ensuring safety-critical features for autonomous firefighting operations.

The Software Engineer, Perception develops autonomous aircraft systems to detect and manage wildfires using real-time data processing and machine learning techniques.

The Software Engineer will design and implement systems across the stack, focusing on AI-native engineering principles, distributed systems, and high-performance data processing.

Develop scalable systems across product and infrastructure, lead architecture decisions, mentor engineers, and improve system performance using various technologies.

The Principal Software Developer will architect and build scalable gaming systems, lead development teams, ensure security practices, and innovate with AI/ML technologies.

As a Senior SDET, lead the development of the automation roadmap, mentor QA staff, and ensure quality across API, integration, and UI testing. Oversee CI/CD quality strategies and implement innovative testing practices.

Develop and optimize auto-labelling systems using ML and computer vision, manage data pipelines, and collaborate with researchers.

The Staff Data Engineer will develop cloud-native data platforms, lead technical strategy, optimize pipelines, ensure data quality, and mentor engineers.

The Principal Software Engineer will design and build scalable platform services for the authorization platform in a healthcare context, mentor team members, and drive architectural decisions.

Lead the architecture and development of scalable systems, collaborate with teams to deliver features, and mentor engineers in a growth-focused role.

The Staff Software Engineer will design, develop, and deliver cloud-native Android security products, collaborating with various teams to ensure high-quality solutions and foster a culture of excellence and continual improvement.

Lead architecture and evolution of Juniper Square’s distributed services, cloud infrastructure, and developer platform. Design scalable, multi-tenant, event-driven systems; build paved-road developer tooling, CI/CD, and observability. Hands-on coding, prototyping, and performance troubleshooting. Enable production AI/LLM workloads, ensure security/compliance, support enterprise upmarket needs, and mentor engineering teams to raise operational excellence and reliability.

The Software Engineer will design and build secure and scalable backend services, APIs, and integrations, collaborating with cross-functional teams to deliver impactful solutions.

Lead architecture and delivery of large-scale, cross-team software systems. Design and implement AI/LLM multi-agent workflows, define CI/CD and testing strategy, resolve cross-team architectural bottlenecks, mentor engineers, and coordinate large programs to ensure scalable, reliable, and cost-effective solutions.

As a Sr. Software Engineer, you will design and maintain scalable cloud-native solutions, collaborate with cross-functional teams, and mentor junior engineers.

Design, develop, and optimize Acumatica ERP customizations, workflows, integrations, and reporting for financial services. Lead integrations with payment gateways and third-party financial tools, enforce Acumatica best practices, support UI/UX enhancements, and ensure upgrade-safe customizations while collaborating with cross-functional teams.

As a Sr. Software Engineer, you'll design and develop features for a SaaS platform, collaborate with teams, tackle technical problems, and ensure high-quality solutions with an ownership mindset.

Design and build AI-powered internal accounting tools and integrations. Own architecture, security, and code quality; translate accounting processes into production-grade backend systems; collaborate with product and accounting staff; document systems and scale tools responsibly.

As a Software Engineer, AI/ML GenAI, you will design and implement AI features, manage embeddings, and optimize AI systems for production deployment while collaborating with product and design teams.

As a Senior Software Engineer, you will own the frontend architecture of the AI ordering product, ensuring high performance and usability while mentoring junior engineers and enhancing team collaboration.

Build and maintain pipelines and web scrapers to create a large case-law dataset, implement metadata extraction (citations, overruling/appeals), ensure scraper reliability, optimize core utilities, expose data via APIs/websockets, and benchmark/evaluate tasks.

You will design and build LLM-powered features, integrate AI capabilities into workflows, and contribute to internal practices at a healthcare-focused company.