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 Gigi Full-time

    Gigi is the agentic operating system of enterprise media buying. Our first product is the AI media manager for Amazon DSP. Since launching it in summer 2025, we've grown to manage hundreds of millions in advertising spend on behalf of the largest agencies in the world.We're backed by top venture investors Golden Ventures and Aperiam Ventures. Our founding...


  • Toronto, Ontario, Canada Blanc Labs Full-time

    Blanc Labs is a premier partner for global enterprises, leading the way in digitization, automation, and the development of next-generation digital products and services. Our expertise in digital transformation powers businesses to accelerate service delivery, drive customer engagement, and foster growth.Alongside our client work, a small product team at...

  • Software Engineer

    11 hours ago


    Toronto, Ontario, Canada (2616) Sanofi Vaccines Canada Ltd. Full-time

    Reference no. R2859178Position title: Software Engineer - Full StackLocation: Toronto, ON (Hybrid)About the jobReady to push the limits of what’s possible? Join Sanofi in one of our corporate functions and you can play a vital part in the performance of our entire business while helping to make an impact on millions around the world. At Sanofi...


  • Toronto, ON, Canada Viggle AI Full-time

    Full-Stack Software Engineer new graduate — AI & 3D Creator Tools Company About Viggle AI Backed by a16z, Viggle AI is building the world's most advanced controllable video and 3D generation technology, empowering game developers, content creators, filmmakers, and industry professionals to bring their visions to life. From building characters to building...


  • Toronto, ON, Canada Manulife Full-time

    Full Stack Software Engineer, Finance & Treasury Technology The Opportunity We're looking for an experiencedFull Stack Software Engineerto join our Group Functions Technology, Finance Solution Delivery team.This is an opportunity to work on technology that sits at the heart of our Finance and Treasury ecosystem. You'll help build and modernize solutions that...


  • Toronto, ON, Canada S&P Global Full-time €102,000 - €152,000 Contract

    About the Role: Financial Risk Analytics (FRA), part of S&P Global Market Intelligence, delivers information-centric capital markets and risk solutions for trading desks and their risk management partners — spanning counterparty credit risk, xVA, market risk, and regulatory compliance. Our products are trusted by buy-side and sell-side institutions...

  • Software Engineer

    24 hours ago


    Toronto, Ontario, Canada Sanofi Full-time $125,300 - $208,800 Contract

    Reference no. R2859178Position title: Software Engineer - Full StackLocation: Toronto, ON (Hybrid)About the jobReady to push the limits of what’s possible? Join Sanofi in one of our corporate functions and you can play a vital part in the performance of our entire business while helping to make an impact on millions around the world.  At Sanofi...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Reason One Full-time €120,000 - €145,000 Temporary

    Reason One is hiring a Senior Fullstack Developer to build innovative products for clients like Emory Healthcare, Children's Nebraska, and Beacon Health. As a Senior Fullstack Developer, you'll lead the technical delivery of enterprise CMS solutions for U.ai) and on fully composable stacks that pair a specialist platform to each need: Experience with the...


  • Toronto, Ontario, Canada Social Leverage LLC Full-time

    Job Title: Software Engineer: Full-Stack or Software Engineer: Full-Stack (Data) Salary: $100,000-$220,000 + equity options. Location: Remote with occasional in-person work in our co-working space in downtown Toronto.About UsFiscal.ai (formerly FinChat) is a leading research and data platform for capital markets. Combining a powerful research Terminal with...


  • Toronto, Ontario, Canada Manulife Full-time

    Full Stack Software Engineer Build technology that powers critical financial systems We’re looking for a Full Stack Software Engineer who enjoys solving complex problems, building reliable applications, and working across technologies to modernize enterprise-scale platforms. You’ll join our Group Functions Technology (GFT), Finance Solution Delivery...


  • Toronto, Ontario, Canada Placeholder Full-time

    Tensor is the leading NFT Marketplace on Solana. We’ve done over $1bn in total traded volume, given back over $100m to our community, and serve over 500,000 traders every month. You’ll be at the ground floor of scaling Tensor for the next 1 million traders and building the most sophisticated trading infrastructure & platform for NFTs in the world. You...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Royal Bank of Canada Full-time

    Job Description What is the opportunity? We’re seeking a talented Senior Full Stack Developer for a team with opportunities to work on AI tools. You will be responsible for the entire development lifecycle, from concept to functional prototype, working alongside business SMEs, architects, designers, product managers, and engineers to bring innovative...


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

    What is the opportunity? We’re seeking a talented Senior Full Stack Developer for a team with opportunities to work on AI tools. You will be responsible for the entire development lifecycle, from concept to functional prototype, working alongside business SMEs, architects, designers, product managers, and engineers to bring innovative ideas to life to...


  • Toronto, Ontario, Canada Moneris Full-time

    Elevate your career with Moneris as a Senior Full Stack Developer based in Toronto. Design and build scalable backend services and responsive frontends while integrating AI capabilities. In this role, you will shape architecture across APIs and event-driven pipelines, working in a multi-cloud environment. Collaborate with product, data, and business teams...


  • Toronto, Ontario, Canada Makeitfable Full-time

    About FableGlobal enterprises work with Fable to make products more accessible for over one billion people who live with disabilities. Our customers include global leaders like Walmart, Slack, and Shopify. Fable was featured on theForbes Accessibility 100list in 2025, awarded Fast Company’s Most Innovative Companies in Design, and has received accolades...


  • Toronto, Ontario, Canada Capital One Group Full-time

    161 Bay Street (93021), Canada, Toronto,Toronto, Ontario,Senior Staff Software Engineer-Full-Stack About Capital One Canada. For 30 years, we've been on a mission to change banking for good. We challenge the traditional bank stereotype by integrating machine learning, conversational AI and design thinking into our core operations. We're a bank a tech company...


  • Toronto, Ontario, Canada Fable Full-time

    About FableGlobal enterprises work with Fable to make products more accessible for over one billion people who live with disabilities. Our customers include global leaders like Walmart, Slack, and Shopify. Fable was featured on theForbes Accessibility 100list in 2025, awarded Fast Company’s Most Innovative Companies in Design, and has received accolades...


  • Toronto, Ontario, Canada Capital One Canada Full-time

    161 Bay Street (93021), Canada, Toronto,Toronto, Ontario,Senior Staff Software Engineer-Full-Stack About Capital One Canada. For 30 years, we've been on a mission to change banking for good. We challenge the traditional bank stereotype by integrating machine learning, conversational AI and design thinking into our core operations. We're a bank a tech company...


  • Toronto, Ontario, Canada Dialogue Full-time

    Staff Software Developer, Full Stack (Provider Experience) About this position About Dialogue Dialogue is the #1 virtual care provider in Canada. By developing our Integrated Health Platform, we provide exceptional online health and wellness programs (primary care, mental health, iCBT, EAP, and wellness) to organizations that want to improve the wellness of...


  • Toronto, Ontario, Canada Optimize Financial Group Full-time

    Drive the development of a cutting-edge wealth management platform as a Full Stack Developer. Collaborate with a dynamic team to write high-quality code and enhance software products in an on-site role. This opportunity is perfect for those with a passion for technology and financial services. As a Full Stack Developer, you'll work closely with Product...