senior full stack software developer jobs in Toronto

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...

Loop is a fast-growing FinTech high growth startup that enables businesses to seamlessly manage money around the world so our clients can access more markets, accelerate their growth and simplify their operations with the only truly cross-border banking platform. Hi, I’m Yan, Head of Engineering and Product at Loop and I am always on the lookout for...

Yoush Consulting is excited to partner with a Canadian start-up to help build their next global success. We are hiring the best talent in Information Technology in Toronto, and across several European countries. If you wish to be part of a global success story building life‑changing technologies that help millions of people living a healthier life, then...

Design and deliver full stack applications with Java, TypeScript, React, APIs, and Azure in a hybrid Waterloo, Ontario role. As a Senior Full Stack Software Engineer, you will own features from design through production support across the software development lifecycle. Your work spans interfaces, databases, server-side logic, automated testing,...

What We Do We build AI models to enable smaller, faster, and more successful clinical trials.What We Do We build AI models to enable smaller, faster, and more successful clinical trials. About Altis Labs Altis Labs is a computational imaging company focused on improving how oncology trials measure treatment benefit. Our core technology is IPRO, an AI...

Location: Toronto (hybrid) Reports to: CEO Compensation: $150k - $165k + 10% target annual performance bonus, depending on experience. The opportunity AI has changed the playing field and scaling economics of consumer legal services. We’re leveraging that opportunity to build Canada’s largest consumer law business, starting with immigration and...

This role provides technical leadership and hands‑on engineering for end-to-end product delivery on Noetica, Thomson Reuters’ AI‑powered deal intelligence platform. It is responsible for designing, building, and operating accurate, scalable, and well‑architected backend‑leaning full‑stack systems that serve transactional professionals across...

Design and build scalable applications for data acquisition, management, and visualization Build and maintain full-stack Nota features, from React components through GraphQL schemas to PostgreSQL query performance Design, deploy, and scale ML inference services on Ray Serve and Kubernetes, including model versioning, autoscaling, and observability ...

EngRadar / Miratech1 Senior Java Full Stack Developer Miratech1 Miratech1 is the employer — EngRadar is a job radar, not a recruiter. We track this posting from their own careers page and send you straight there; we never handle applications or CVs. Toronto, , Canada Full-time Posted today Apply directly → We are looking for a Senior Full Stack...

As a global leader in interactive entertainment and a proud label of Take-Two Interactive, our games have been downloaded over 6 billion times—connecting players in 175+ countries through fun, strategy, and a little friendly competition. From thrilling casino spins to epic strategy battles, mind-bending puzzles, and social word challenges, our diverse...

Build Amazon Customer Service solutions with full-stack expertise across Lambda, Fargate, and React in Toronto. Shape tools for customer service associates. As a Senior Software Development Engineer, you will help evolve associate-facing solutions within Amazon Customer Service. You will guide architecture, lead greenfield projects, and collaborate with...

Advance your career with Jonas Software as a Full Stack Developer, focusing on transforming legacy systems and implementing cutting-edge AI features. Engage with leaders to shape our platform.This mid-senior Full Stack Developer role invites you to design and build new platform architectures, leveraging your skills in both backend and frontend development....

Explore the Senior Full Stack Software Developer opening focused on Java, REST APIs, and high-quality application design. Your extensive experience is essential for driving large-scale application projects.As a key player in this team, you will design and implement robust data pipelines, translating complex technical specifications into functional...

Software Development Engineer III / Senior Software Development Engineer - Full Stack Join to apply for the Software Development Engineer III / Senior Software Development Engineer - Full Stack role at Workday. Join the Workday AI organization Your work days are brighter here. We’re obsessed with making hard work pay off, for our people, our customers, and...

This role provides technical leadership and hands‑on engineering for end-to-end product delivery on Noetica, Thomson Reuters’ AI‑powered deal intelligence platform. It is responsible for designing, building, and operating accurate, scalable, and well‑architected backend‑leaning full‑stack systems that serve transactional professionals across...

Build AI-powered customer experiences at Intuit Toronto using Java, JavaScript, React, and TypeScript in a hybrid work model. As a Senior Software Developer, you will lead full-stack development within Intuit’s Data, Growth and Experiences team. You will help build a robust Partner Platform supporting QuickBooks, Mailchimp, Accountants, and PTG. The work...

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 leading edge of technology, remain nimble even as a...

Blair Health is a clinical infrastructure company closing the specialist gap. Today, someone with perimenopause, menopause, pelvic health, urology or weight concerns can see three primary care providers and a specialist and still leave without an answer. Our protocol-driven model gives generalist clinicians the tools, protocols and clinical support to...

Venture outside the ordinary - TMX Careers The TMX group of companies includes leading global exchanges such as the Toronto Stock Exchange, Montreal Exchange, and numerous innovative organizations enhancing capital markets. United as a global team, we’re connecting cross-functionally, traversing industries and geographies, moving opportunity into action,...

Venture outside the ordinary - TMX Careers The TMX group of companies includes leading global exchanges such as the Toronto Stock Exchange, Montreal Exchange, and numerous innovative organizations enhancing capital markets. United as a global team, we're connecting cross-functionally, traversing industries and geographies, moving opportunity into action,...