Top Software Engineer Jobs in Toronto

The Senior Software Engineer will design and implement web applications using React and Typescript, ensuring security and scalability while participating in Agile processes.

The Backend Software Developer will design, implement, and test features, ensuring security best practices while collaborating in a fast-paced, agile environment.

Design and develop data pipelines and applications for Growth, Sales, and Marketing functions at Stripe, ensuring data integrity and influencing project outcomes.

The Senior Software Engineer will design and maintain user interfaces and backend services, integrate AI/ML capabilities, and ensure system performance and reliability while collaborating with product managers and stakeholders.

The Senior Software Engineer will architect and deliver a CRM and data platform, automate workflows, and integrate data across systems to support growth in the firm.

As a Senior Software Engineer, you'll automate and enhance business processes, mentor team members, and ensure high-quality system design across various backend applications.

Lead software engineers build custom solutions, manage projects, and guide junior team members while solving complex problems for clients using various technologies.

Design and maintain high-performance authorization solutions, optimizing for latency and scalability while leading junior engineers and ensuring system reliability.

The Senior Software Developer at SOTI is responsible for developing innovative solutions, mentoring team members, writing scalable code, and supporting full development lifecycle.

As a Senior Backend Engineer at Maple, you'll own end-to-end backend services, improve system architecture, mentor teammates, and collaborate cross-functionally on meaningful healthcare-related projects.

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

You will lead architectural design, drive complex project solutions, mentor engineers, and advocate for software best practices within the team.

Develop core backend components for a blockchain network, focusing on networking, reliability, scalability, and high-quality software practices.

As a Software Engineer - New Grad, you will build and ship production features across the stack, design scalable systems, and learn in a fast-paced environment.

The Senior Full-Stack Engineer will build scalable microservices, design robust APIs, and contribute to frontend development for the Censys Platform, directly impacting security insights.

As a Fullstack Software Engineer, you'll develop critical features across the stack, ensure scalable systems, and mentor junior engineers, interfacing with teams to improve access management at Lumos.

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.

The AI Solution Engineer will design and implement AI solutions, develop workflows, collaborate with teams, and maintain AI systems to enhance decision-making and automation.

Lead design and delivery of enterprise-scale AI systems (including RAG and multi-agent architectures), drive AI strategy and POCs, embed solutions with business units, mentor engineers, establish MLOps/LLMOps practices, and scale prototypes into production.

Design and build full‑stack, agent‑first web applications and scalable cloud-native APIs; partner with AI Engineers to integrate models and data flows; lead architecture, mentor engineers, rapidly prototype AI interaction models, and drive cross-functional delivery.

Lead design and implementation of front-end and back-end features for the digital banking platform. Build scalable, secure APIs, drive TDD and testing, refactor to reduce technical debt, collaborate with cross-functional teams and vendors, and mentor junior engineers while ensuring regulatory compliance.

The Software Engineer will build database infrastructure, solve complex distributed systems challenges, and work directly with customers to provide technical solutions.

Join the Surfaces team to build user-facing UIs and APIs for managing PlanetScale databases. You'll work with technologies like React, Ruby on Rails, and Go, focusing on developer experience and solving user problems.

Design and build secure, scalable systems as a Full-Stack Software Engineer, leveraging expertise in Next.js, TypeScript, PostgreSQL, and AI tools to enhance cybersecurity within global infrastructure.

The Staff AI Software Engineer is responsible for designing and enhancing software for AI agents, conducting system evaluations, mentoring developers, and driving technical decisions.