Top Software Engineer Jobs in Toronto

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.

Lead design and delivery of scalable, secure solution architectures across cloud-based systems. Create ADRs and HLDs, participate in governance, collaborate with stakeholders, mentor teams, and ensure alignment with architectural and security standards.

Design, architect, and develop native Android features across the full SDLC. Own cross-functional, multi-platform system design, implement and test solutions, improve engineering practices, and mentor junior mobile engineers.

Own full‑stack features across front end and back end, from design through deployment and monitoring. Work with Next.js/React, NestJS GraphQL, and .NET/C#; deploy to AWS/EKS with CI/CD; use AI tooling to accelerate development. Collaborate with product, design, and analysts, participate in on‑call rotation, and mentor junior engineers.

The Software Engineer will lead the development of Baseten Voice AI, focusing on real-time model serving systems, collaboratng with teams on architecture and implementation.

Design, implement, and release scalable iOS features and frameworks working with product, design, and backend teams. Prototype, run A/B tests, apply automated testing, and use AI responsibly to speed workflows while ensuring quality, data protection, and maintainability for millions of users.

Prototype, validate, and deliver Guidewire Cloud features in customer environments. Capture use cases and requirements, build full-stack solutions, and implement CI/CD/DevOps and automated testing. Collaborate with Solution Architects, Product Development, Sales, and Customer Success to operationalize co-development partnerships and support customer transformation as a trusted technical consultant.

Lead solution consulting and full-stack development for Guidewire Cloud co-development partnerships. Prototype, validate, and deliver features in customer environments, own design and integration workstreams, mentor junior consultants, and translate requirements into actionable solution designs while providing feedback to product and solution architects.

Build and maintain scalable, data-intensive financial systems: develop Scio data pipelines on GCP, Java backend services, and data models; integrate external financial systems; improve observability, resilience, and CI/CD; collaborate with Finance, Product, and Engineering to translate accounting requirements into reliable technical solutions.

Design, architect, and implement new features for the Spellbook application while collaborating with product management and improving existing functionalities using AI technologies.

The role requires designing and developing web applications and backend systems, integrating LLMs, and ensuring quality software delivery.

The Software Engineer will develop backend systems for an AI Energy Agent, including data integration, microservices, and scalable architecture, focusing on performance and reliability.

The Founding Software Engineer will build and enhance crisis-intervention software, focusing on mobile and web applications for government welfare, ensuring compliance and integrating data securely. Responsibilities include feature development, security enhancements, and managing interns.

The Full-Stack Engineer will develop and maintain web applications, translating UI/UX designs into responsive apps, optimizing applications, and writing clean code.

Build, maintain, and operate cloud-based services and automation for satellite operations. Manage infrastructure, design/deploy critical systems, support microservices and CI/CD workflows, ensure reliability and SLAs, collaborate with cross-functional teams to minimize operational burden and automate satellite operations.

As a Software Developer II, you'll implement .NET solutions, maintain quality assurance, collaborate with teams, minimize technical debt, and advance your skills using AI-driven tools.

The Senior Full Stack Software Developer will design, develop and implement scalable applications, manage system architecture, mentor developers, and drive engineering excellence.

Design and maintain backend services and infrastructures focusing on Node.js, TypeScript, and Kubernetes, ensuring reliability and scaling.

Lead platform engineering to improve developer productivity, CI/CD, build systems, monorepo health, and internal tooling (80%); contribute to product features, scalable APIs, and AI-native marketplace infrastructure (20%).

Owner of end-to-end production problems: design, build, experiment, ship, and measure outcomes across backend, frontend, data pipelines and AI. Act as a technical leader, reviewer, incident mitigator, and cross-functional partner to product and design while advancing AI-driven tooling and safeguards.

Own and set direction for a large domain, design cross-team architecture, build production systems (often AI-enabled), partner with product/design/data, coach senior engineers, and remain hands-on in code and delivery.

Design, build, and operate scalable, cloud-native web applications and services for Security Services teams. Collaborate with UX and product teams, integrate AI tools, ensure reliability/performance, use CI/CD pipelines, and deliver production systems that improve security operations.

Build and maintain PHP and Python services and RESTful APIs powering credit card issuance, rewards, and payments. Own features end-to-end, make architectural decisions, optimize MySQL queries, integrate with banking cores and payment networks, and mentor junior engineers while working asynchronously in a remote-first environment.