senior full stack developer jobs in Toronto

Use Java and REST APIs to build enterprise platform capabilities as a Senior Full Stack Developer working five days onsite. Your work spans frontend, backend, integration, and data-access layers. This senior position develops secure, scalable, observable, and maintainable applications for multiple government programs. You will build microservices, reusable...

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...

A leading technology firm in Toronto is seeking a Senior Full Stack Software Developer to engage in the development, design, and maintenance of applications. Candidates should have proven experience with the .NET framework, Agile methodologies, and strong analytical skills. This role involves both front-end and back-end development, working closely with...

A technology solutions provider based in Toronto is seeking a Senior Full Stack Software Developer. The ideal candidate will possess extensive experience in .NET and Angular, along with a solid understanding of Agile methodologies. Key responsibilities include collaborating within development teams, designing scalable applications, and ensuring high-quality...

Build full stack applications with React.js and Python while developing AI/ML solutions across modern cloud technologies. This senior role emphasizes tested delivery.As a Senior Full Stack Software Developer, you will translate technical specifications into working applications and continuously expand data pipelines. The work spans React.js, FastAPI, .NET...

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...

At Unity, we’re building a world-class advertising platform that operates at a massive global scale. The Ads team powers the systems that connect advertisers with creators and players, driving performance, reliability, and growth across our ecosystem. As a Senior Full-Stack Engineer on the Unified Ads Platform team, you’ll own the service layer where...

Our client is a professional investment management organization that globally invests the funds to ensure long‑term sustainability. The company invests in all major asset classes, including public equity, private equity, real estate, infrastructure and fixed‑income instruments. Being motivated every day by important social purpose and unshakable...

Can You Develop Seamless Native and Cross-Platform Applications? Apply Now! Working with one of our top financial clients, this role calls for a Senior Full Stack Developer – iOS (Swift), NestJS/Node.js. This position involves developing and maintaining high-quality mobile applications and backend APIs, with a focus on both native iOS development using...

Drive innovation as a Senior Full Stack Developer, focusing on the intersection of AI tools and cloud technologies in application development. Your leadership will shape high-performance, scalable solutions. In this pivotal role, you'll architect and build customer-facing applications while fostering collaboration in Agile environments. Your experience in...

Design secure Java platforms onsite, spanning user interfaces, APIs, services, workflows, integrations, and data-access layers. Apply REST and microservices expertise. This senior full stack developer builds enterprise capabilities supporting multiple government programs. The work includes reusable platform services and connections for registries,...

Lead Java development for enterprise web applications and platform services in Toronto, working fully onsite five days weekly throughout an 11-month contract. This Senior Software Developer role spans technical design, development, integration, and maintenance. You will build microservices, REST APIs, reusable platform components, and database solutions....

AltaML’s Venture Studio builds and invests in early-stage artificial intelligence (AI) and machine learning (ML) companies, helping founders fast-track their journey from zero to one. By combining technical expertise, operational support, and insights from our corporate labs, we create high-performing applied AI ventures with a competitive edge. One of the...

Build tested Java applications as a Senior Software Developer, using Spring Boot, REST APIs, and full stack development expertise.This senior developer translates technical specifications into working applications through analysis, design, coding, compilation, maintenance, and unit testing. The work includes troubleshooting software packages, supporting...

Java expertise drives enterprise full-stack development in Toronto, with this fully onsite contract focused on secure APIs and scalable applications. As a Senior Software Developer, you will design, develop, integrate, and maintain large-scale web applications. The work spans front-end, backend, workflow, API, and data-access layers using Java and modern...

Design RESTful APIs and AngularJS modules as a Senior Full Stack Software Developer working partly from 5700 Yonge St. Build tested applications and data pipelines.This senior developer role requires 10+ years of experience with RESTful APIs, Swagger files, AngularJS, and front-end API integration. You will translate technical specifications into working...

Elevate your career at TD Securities as a Senior Full Stack Developer based in Toronto. Focus on building modern applications in Angular and Node.js while contributing to trading solutions. Join the Equity Derivatives Technology team at TD Securities. You will design and develop technological solutions tailored for trading and key business stakeholders....

A leading software development company in Toronto is seeking a Senior Software Developer - Full Stack to contribute to innovative projects. The ideal candidate should possess expert-level skills in Angular and .NET technologies. This role involves working collaboratively in Agile teams to design and implement scalable solutions. Experience with SQL and REST...

A technology solutions company in Ontario is seeking a Senior Full Stack Software Developer with expertise in Microsoft/Azure development. The role involves front-end and back-end tasks, including designing the solution architecture and integrating APIs. The ideal candidate has extensive experience with Angular, .NET, and SQL. Additionally, strong...

Elevate your career as a Senior Full Stack Developer, specializing in innovative software solutions and Agile methodologies. Utilize top-notch skills across the stack to create and maintain robust applications. This senior role emphasizes collaboration with IT professionals to ensure comprehensive software development. Bring your skills in programming,...