Top Software Engineer Jobs in Toronto

As an entry-level Software Developer, you will assist in developing mobile and web applications, participating in code reviews and ensuring high-quality software.

Design and implement scalable backend systems, build high-availability applications, and mentor junior engineers in a collaborative environment.

As a Software Engineer at eBay, you'll build large-scale distributed systems, participate in design discussions, and collaborate with cross-functional teams while ensuring high performance and reliability of the software.

Design and build platforms and tooling to support fraud investigations and operational workflows. Work with large datasets and LLM/AI systems in production, collaborate with data scientists to automate manual reviews, improve system reliability, and increase development velocity. Hybrid role based in Toronto (3+ days/week).

Design, build, deploy, and maintain scalable backend features and APIs for enterprise restaurant products. Lead complex projects, ensure quality with automated testing, monitor rollouts, collaborate with UX/PM, mentor engineers, and partner across teams to improve functionality and reliability for customers.

Design, build, and operate high-throughput, fault-tolerant ledger and settlement systems of record. Develop durable ledgering APIs, settlement orchestration, and treasury automation. Ensure data contract integrity for downstream finance, run production systems to SLOs, debug multi-layer issues, lead and mentor engineers, and use AI tooling to reduce operational toil.

Design, maintain, and extend abuse detection and prevention systems for GitLab's SaaS platform. Serve as a core maintainer of a Ruby on Rails monolith, build anomaly detection and agentic AI mitigations, automate abuse response, collaborate with peer engineering and security teams, and produce runbooks and operational documentation.

Design, implement and own high-availability Federated GraphQL services using Node.js and Spring Boot. Drive schema design, performance/cost/security analysis, mentor teams on GraphQL federation, collaborate on platform tooling (Kubernetes, Docker, CI/CD), and support migrations and developer experience initiatives.

Lead design and delivery of cloud-native, secure, scalable data catalog services. Drive architecture, hands-on full‑stack development, CI/CD/DevOps, AI-assisted workflows, security, observability, and team enablement across enterprise platforms.

Build and maintain Azure data platform components, implement reliable scalable code, automate deployments, run and validate code in non-production, perform and contribute to code reviews, instrument telemetry and monitoring, collaborate on experiments and feature flagging, and apply secure design and best practices.

Develop and maintain cloud-enabled data catalog services and components. Implement features, write maintainable code, perform unit/component testing, support deployments, follow secure cloud and architecture patterns, participate in peer reviews and production support, and document implementations under guidance from senior engineers.

Design, build, test and support cloud-native data catalog services and APIs. Translate requirements into technical designs, implement secure, scalable components, automate CI/CD and testing, and support operational readiness and incident resolution while following enterprise engineering and AI-assisted development guardrails.

As a Senior Full Stack Software Engineer, you will build and improve products, create user interfaces and APIs, and collaborate with various teams to enhance the customer experience.

Leads delivery of scoped software features and models for scalable web and membership-experience platforms. Designs, develops, tests, debugs, and maintains reliable software using Java, Python, Node.js, APIs, CI/CD, automated testing, and AI/ML integrations. Collaborates with stakeholders, conducts code reviews, monitors performance, translates requirements into technical solutions, supports production systems, mentors peers, and promotes engineering excellence and continuous improvement.

Leads scalable software feature and model delivery across the full development lifecycle. Responsibilities include coding, testing, debugging, code reviews, CI/CD, AI/ML integration, solution design, performance monitoring, stakeholder collaboration, technical requirements, production support, and peer mentoring. The role develops Java and Node.js services using REST and GraphQL APIs while promoting secure, maintainable engineering practices and continuous improvement.

Leads Android software development across design, coding, testing, deployment, debugging, and production support. Develops scalable and secure mobile solutions using Kotlin and modern architectures, integrates AI and ML capabilities, conducts code reviews, supports CI/CD and DevOps activities, monitors performance, and promotes engineering best practices. Collaborates with cross-functional teams, owns feature delivery, mentors peers, and contributes to Walmart+ customer-focused platform improvements.

Design, build, and operate high-scale distributed observability systems for telemetry ingestion, processing, storage, autoscaling, and service provisioning. Own platform reliability, performance, capacity, and cost efficiency; participate in on-call incident response; automate repetitive operations; resolve root causes; and contribute to architecture, roadmap, and engineering quality across teams.

Develop and manage mission-critical infrastructure services for Akamai’s cloud lab platform. Build deployment stacks for test datacenters, design observability and monitoring solutions, improve deployment and configuration performance, and collaborate with engineering, architecture, and site reliability teams. The role requires strong Infrastructure as Code, Python, REST API, container orchestration, development-environment tooling, and relational database experience.

Build and maintain integrations for North's agentic platform, own the end-to-end integration pipeline, create evals and tests to ensure reliability, tune tool descriptions, and help other engineers add and maintain integrations while using AI responsibly to improve performance and quality.

Build and lead mapping-focused features using Lyft's in-house navigation system. Design, implement, test, and operate scalable, fault-tolerant distributed systems in cloud environments. Collaborate with product, data science, analytics, operations, and AI/ML teams; own features from design through launch; participate in code reviews and on-call rotations; share knowledge via talks and mentoring.

Develop and maintain front-end applications and user interfaces for enterprise systems. Responsibilities include coding, testing, debugging, documentation, troubleshooting, accessibility compliance, responsive and cross-browser development, stakeholder requirements gathering, SDLC collaboration, database integration, implementation support, and technical issue resolution. The role requires extensive Java, Angular, JavaScript, TypeScript, Oracle, Spring, REST API, and front-end development experience, with five days per week onsite in Toronto.

Develop and maintain enterprise full-stack applications across the software development lifecycle. Responsibilities include building front-end interfaces and back-end services, developing REST and SOAP APIs, designing data pipelines and database integrations, testing and troubleshooting applications, supporting deployments and migrations, and collaborating with business and IT stakeholders. The role requires React, Angular, JavaScript, Java, Oracle, SQL Server, web application technologies, DevOps practices, and Agile/Scrum experience.

Design, develop, test, deploy, and operate scalable Java backend services, APIs, microservices, databases, and event-driven systems. Own projects across the software lifecycle, collaborate with product and infrastructure stakeholders, conduct code reviews, and build testing and observability. Troubleshoot production issues, participate in incident response, and improve system reliability, performance, scalability, and maintainability.

Leads the design and delivery of scalable cloud-native platform capabilities and AI-enhanced applications. Oversees the full software development lifecycle across distributed systems, ensuring availability, reliability, fault tolerance, and performance. Provides technical leadership and mentorship, establishes engineering standards, collaborates with stakeholders on technical requirements and success metrics, and drives architectural documentation, continuous improvement, and operational excellence.

Build and maintain backend microservices in Golang for authentication and authorization. Design scalable APIs, deploy services on AWS and Kubernetes, implement secure high-volume access control, write tests, participate in on-call rotation, collaborate on design and reviews, and monitor and optimize performance and reliability.