senior full stack software developer jobs in Toronto

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1,000 senior full stack software developer job listings in Canada. Find daily updated positions from leading job boards.


  • Toronto, Ontario, Canada Homebase, Inc. Full-time

    Drive innovation at Homebase as a Full Stack Senior Software Engineer II in Toronto. Build AI-powered systems, collaborate with teams, and accelerate growth through hybrid work. This role involves 5+ years of software engineering experience with 2+ years in technical leadership. You will be responsible for leading greenfield development projects, enhancing...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada HRB Full-time

    Our client is seeking senior software engineers who will join as the 2nd and 3rd full-time employees in their growing Toronto engineering hub. The venture spun out of research on corporate commuting at Stanford and the CEO has over a decade of experience innovating in the transportation technology space in varied global contexts. With an oversubscribed seed...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Vitall Intelligence Inc. Full-time

    Job Summary: VITALL is looking to add to its growing and accomplished development team. The successful candidate will be a Senior Full Stack Developer who is passionate about making health information meaningful. This is an outstanding opportunity for the right candidate to define themselves as a lead contributor to the health technology industry and set...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada ReFlow Full-time

    We’re building Reflow, a workforce and workflow intelligence platform that helps teams understand and improve how work gets done. We’re expanding our full-stack team to accelerate feature development, scale analytics systems, and ship the next wave of intelligence-driven capabilities. What you’ll do Build and maintain core product features across...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Stellar Software Solutions LLC Full-time

    Build travel applications with Core Java and real-time data skills on Priceline’s Agile Technology team. Develop services with measurable business impact. This Full Stack Developer role supports mission-critical Priceline projects and next-generation travel applications. You will work across Core Java, SQL, APIs, and transactional services. The position...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Mosaic Clinical Technologies Full-time €200,000 - €250,000 Temporary

    Mosaic Clinical Technologies (Canada), Inc. is pioneering a new imaging paradigm—shifting radiology from reactive diagnostics to proactive, decision-driven care. Through our AI-native platform, MosaicOS, we unite fragmented technologies into a single, intelligent ecosystem designed to help clinical teams work faster, think smarter and deliver better care....


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Electric Mind Full-time

    AtElectric Mind,Engineeringis where strategy meets action. Our team helps organizations cut through complexity—aligning business ambition with technology execution to unlock real, lasting change.You’llwork alongside curious, driven people tackling high-impact challenges for everyone from scaling startups to global enterprises. Each engagement is...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Collabera Full-time

    Build Java backend services and React enhancements for Capital Markets in Downtown Toronto, with a hybrid schedule requiring four onsite days weekly. This contract may extend. The Senior Full Stack Engineer supports a large-scale transformation of a mission-critical Public Markets platform. Your emphasis will be backend engineering, while React...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Jobber Full-time

    Shape Jobber’s headless web architecture with React, TypeScript, and APIs from Edmonton, Toronto, Vancouver, or Kitchener-Waterloo. Influence technical direction. Jobber is seeking a Senior Front-End Developer with full-stack knowledge for its Web Strategy team. You will build content-driven experiences in Next.Js and Sanity, integrate APIs and services,...

  • Software Developer

    6 days ago


    Toronto, ON, Toronto Census Division, ON; Ontario, Canada i-Net Connexion Full-time

    Microsoft/Azure Development and Quality Assurance Experience Must have Entity Framework or other Object-Relational Mapping data access tools REST APIs REAT and NEXTJS SQL experience Node.js Knowledgeable in Web Content Accessibility Guidelines (WCAG) for web application development Experience with common React libraries such as Hook Form, React...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada MaintainX Full-time €88,000 - €190,000 Temporary

    MaintainX is a leading mobile-first work execution platform for industrial and frontline teams. More than 13,000 customers, including Duracell, McDonald's, Shell, DHL and Volvo, use MaintainX to cut unplanned downtime and run better operations, across 13.9 million managed assets and 79.5 million completed work orders. In August 2026 MaintainX became part...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Fidelity International Full-time €123,000 - €158,000 Temporary

    Work location: 483 Bay Street in Toronto until approximately late 2026, when the work location will change to the new Mississauga office at 3 Robert Speck Parkway. Flexible hybrid schedule. What You Will Do Responsible for all technical aspects related to assigned projects to meet specific business requirements from the Business and IS groups. Work...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Miratech Group Full-time

    Senior Full Stack Developer (Java/React) Full-time Miratech helps visionaries change the world. We are a global IT services and consulting company that brings together enterprise and start-up innovation. Today, we support digital transformation for some of the world’s largest enterprises. By partnering with both large and small players, we stay at the...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Fidelity International Full-time €123,000 - €152,000 Temporary

    ## Full Stack Developer FCCApply: Toronto Office: Full time: Posted Today: J63954# **Job Description*** **Current work authorization for Canada** is required for all openings.* You will be working on a **remote schedule** as part of Fidelity’s dynamic working arrangement. **Who We Are**Fidelity Clearing Canada (FCC) is the leading independent clearing...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Insight Global (United States) Full-time

    Job Description Insight Global is seeking a hands-on Lead Full Stack Developer to support a major KYC transformation initiative within a large banking environment. This role will focus on both modernizing existing applications and developing new applications and functionality from the ground up. The ideal candidate has strong experience across Java/Spring...


  • Toronto, ON, Canada Inorbital Full-time $85,000 - $110,000 Contract

    Company DescriptionInorbital is a Toronto-based digital agency specializing in enterprise CMS and DXP implementations for complex, regulated organizations across Canada. For over 20 years, the team has designed, built, and supported secure, scalable digital platforms that emphasize governance, accessibility, and long-term sustainability. Inorbital...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Publicis Groupe Full-time €120,000 - €140,000 Temporary

    Overview Saatchi & Saatchi is seeking a Lead Developer for an innovative AI platform initiative. You have 8+ years building production software systems and at least a few years leading or anchoring a team technically. You are a hands‑on builder and you hold the architectural picture of a multi‑tier platform — React frontend, Spring Boot backend,...

  • Development Manager

    3 days ago


    Toronto, ON, Toronto Census Division, ON; Ontario, Canada Priceline Full-time

    This role is eligible for our hybrid work model: Two days in-office. Development Manager - Full Stack This role is eligible for our hybrid work model: Two days in-office. Our Technology team is the backbone of our company: constantly creating, testing, learning and iterating to better meet the needs of our customers. If you thrive in a fast-paced,...


  • Toronto, Ontario, Canada Hewitt Banks Full-time

    A leading fintech innovator is seeking a Senior Software Developer for a remote-first role. You will design and build impactful features across web and mobile platforms, utilizing technologies such as Ruby on Rails, Python, and AWS. The ideal candidate will have strong experience in scoping distributed systems and optimizing performance. This role offers the...


  • Toronto, Ontario, Canada Humber College Full-time

    University of Guelph-Humber is seeking a Senior Full Stack Developer to design, develop, integrate and maintain enterprise applications. The role emphasizes database architecture, backend (PHP/Laravel) and data pipelines, with frontend work (ReactJS, HTML5/CSS3) and integration across institutional systems.The incumbent will support the application ecosystem...