Top Full Stack Developer Jobs in Toronto

Develop and maintain cloud-based IoT applications for manufacturing. Design secure, scalable full-stack solutions, APIs, data integrations and pipelines. Collaborate with architects, product owners, developers, and stakeholders; follow DevOps and agile practices; mentor team members and troubleshoot production issues.

Develop secure technology solutions for financial institutions, focusing on vulnerability management. Responsibilities include full-stack engineering, collaboration, and Agile methodologies.

The Junior Full Stack Developer will assist in delivering vulnerability remediation initiatives for financial institutions, working with various teams on development, testing, and production support activities.

The Staff Software Engineer will own user-facing product areas, lead initiatives across frontend and backend, and mentor team members to enhance product quality and engineering standards.

Work across the full stack to build and maintain features for Toast's restaurant platform, including Android (Kotlin), backend services (Kotlin/Java), and frontend SPAs (React/TypeScript). Write automated tests, participate in code reviews, collaborate with product and QA, complete onboarding codelabs, and learn CI/CD and feature flag management (LaunchDarkly). Use AI-assisted tools to improve development workflows and deliver reliable, production-ready software.

Lead design and delivery of scalable, secure solution architectures for Capital One's travel portal. Create ADRs and HLDs, participate in governance, maintain capability catalogs, evaluate new technologies, collaborate with stakeholders, mentor teams, and ensure solutions meet architectural and security standards in a regulated environment.

Lead full-stack design and development for Capital One's travel portal across front-end and back-end. Own architecture, apply HLD methodology, establish engineering best practices, mentor junior engineers, and improve developer experience while working through the SDLC on fault-tolerant, multi-platform systems.

Lead applications systems analysis and programming activities, partner with management for functional integration, and mentor developers. Resolve complex issues and ensure compliance with regulations.

The Full Stack Developer will collaborate with Product Managers and Designers, work on web and mobile applications using TypeScript and Node.js, and mentor other engineers while owning product features.

Build, maintain, and optimize a high-availability full-stack web application using Node.js/TypeScript backend and Vue.js frontend. Implement features across data portals, admin tooling, and analytics; design databases and ETL workflows with Python/Airflow; integrate third-party APIs; ensure performance, security, testing, and CI/CD; troubleshoot production issues and collaborate across product, design, and engineering.

Design, develop, test and maintain enterprise Java applications and integrations for a digital permitting platform. Implement microservices, REST/SOAP services, Azure-enabled CI/CD deployments, IBM ODM/BAW integrations, WebSphere/Liberty hosting, PL/SQL data work, AODA-compliant UIs, OpenShift container deployments, and support multi-environment releases in Agile teams.

Design, build, and maintain scalable full‑stack applications using React, TypeScript, and NestJS. Translate business requirements into architecture and design, contribute to system and API design, support CI/CD and DevOps practices, integrate AI coding tools (Claude Code) and agentic workflows, establish prompt engineering standards, and define guardrails for AI‑generated code. Work on large‑scale, production‑grade distributed systems.

Build, improve and maintain audience data pipelines and integrations. Collaborate with product, UX and architecture teams, work across the full SDLC with automated testing and cloud/container deployments, and ensure data governance and privacy-by-design practices for consent and audience data.

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.

The Full Stack Engineer will develop both frontend and backend solutions to empower business users in data analysis without technical skills, utilizing various technologies including NextJS and Python.

Seeking a Full-Stack Engineer with 3+ years of experience to develop and enhance data collaboration tools using LLMs, focusing on frontend and backend development.

Design and implement a low-latency, event-driven Order Management Platform for Cash Equities. Build Java microservices, implement FIX client and market-facing connectivity, improve test and deployment automation (CI/CD), collaborate with product owners and global teams, and optimize throughput and reliability.

The Full Stack Developer designs and develops web-based applications for investment management, working on both front-end and back-end systems. They also collaborate with business analysts and support the software development lifecycle including testing and deployment.

Design, develop, test, deploy and support enterprise-grade .NET applications and RESTful APIs. Provide technical leadership, mentor team members, produce design artifacts and documentation, and participate in integration, testing and deployment activities while ensuring compliance with standards.

Design, develop, and maintain full-stack banking applications using Java, Angular, TypeScript, Node.js, and Python. Integrate and optimize Java-based REST APIs, write automated unit tests (JUnit 5), collaborate with clients and cross-functional teams, participate in code reviews and Agile delivery, and contribute to CI and quality practices to deliver scalable production solutions.

The Full Stack Engineer will develop and maintain SaaS platforms, working on both front-end and back-end systems, collaborating with teams to deliver user-focused features and uphold high code quality through testing and performance monitoring.

Build and maintain enterprise-scale cloud applications using Java and Go. Design, develop, integrate and implement modular services, APIs, containerized deployments (Docker/Kubernetes/OpenShift), and Azure platform components. Serve as an SME and hands-on coder, collaborate with stakeholders, ensure web security, reliability, and observability across systems.

Develop and maintain web applications, collaborate on features, write efficient code, troubleshoot issues, and deploy in AWS.

Develop scalable, secure cloud-native backend services and APIs using Python and FastAPI on Azure. Integrate with Azure PaaS (Web Apps, Functions, Cosmos DB, Key Vault), Azure AD and Microsoft Graph, implement CI/CD, collaborate with front-end ReactJS developers and AI teams, and participate in architecture and code reviews to deliver AI-enabled data solutions.

The Full-Stack Developer will design, develop, and maintain integrations, APIs, and applications for MaintainX, focusing on high-quality, reliable code and collaboration with teams.