senior software developer data jobs in Toronto

RQ11377 - Software Developer - Full Stack - SeniorHybrid# Of Openings: 4Office Location: Toronto or GuelphOrganization: Land & Resources ClusterMinistry: Ministry of Public and Business Service Delivery and ProcurementMax Extension Term(s)3 TimesSecurity Level: No Clearance RequiredStreet- 40 St Clair W Toronto or 1 Stone Rd W GuelphPay Rate: 100-103/hr...

Metrolinx is connecting communities across the Greater Golden Horseshoe. Metrolinx operates GO Transit and UP Express, as well as the PRESTO fare payment system. We are also building new and improved rapid transit, including GO Expansion, Light Rail Transit routes, and major expansions to Toronto's subway system, to get people where they need to go, better,...

Posted Monday, August 17, 2026 at 4:00 AM If you are looking for a career at a dynamic company with a people-first mindset and a deep culture of growth and autonomy, ACV is the right place for you! Competitive compensation packages and learning and development opportunities, ACV has what you need to advance to the next level in your career. We will...

We are seeking a highly experienced Senior Software Developer - Full Stack to lead the technical design, development, integration, and maintenance of large-scale enterprise web applications and platform capabilities. In this role, you will be responsible for building reusable platform services, robust microservices architectures, and RESTful APIs across the...

Lead test automation with Python for Invisalign cloud services in Toronto, supporting automated treatment planning within a regulated medical environment. As a Senior Software Developer in Test, you will design and extend automatic test systems for complex orthodontic problem domains. The full-time role collaborates with clinical experts, project managers,...

Mastercard is looking for a Senior Principal Software Development Engineer to join the Mastercard Foundry Research and Development team in our Toronto locationIn this role, you will establish the technical direction for complex, early-stage products, drive architecture decisions across teams, and bring innovative solutions to global markets at enterprise...

Clio is the global leader in legal AI technology, empowering legal professionals and law firms of every size to work smarter, faster, and more securely. We are currently seeking a Senior Software Engineer, AI to join our Knowledge Extraction Team. The Senior Software Engineer, AI is a hands‑on technical leader responsible for building, operating, and...

Description Designs, develops, integrates, tests, deploys, and maintains enterprise platform capabilities across the user-interface, service, API, workflow, integration, and data-access layers. The role builds reusable platform services that can support multiple government programs, while also implementing the service‑specific connections required to...

We are seeking a seasoned Senior Software Developer - Full Stack to lead the technical design, development, integration, and maintenance of large-scale enterprise web applications and platform services. In this role, you will be responsible for creating reusable platform components and building microservices across user-interface, API, workflow, integration,...

Software Developer - Full Stack - Senior (Health) (BBBH12303) Toronto, CanadaWe are seeking two Senior Full Stack Developers to enhance healthcare applications and integration'sThe focus is on replacing scheduled polling with event-driven processing so applications can respond to clinical information, referrals, reports, and status changes in real...

RQ11377 - Software Developer - Full Stack - Senior - 4 OpeningsLocation:Hybrid (Work onsite 2 Days a week from Toronto or Guelph office) 40 St Clair W Toronto or 1 Stone Rd W GuelphDuration:6+ contract (125Business Days) + 3 possible ExtensionMust Have:At least 1+ year of experience developing and implementing Java solutions targeting soil management...

RQ08799 - Software Developer- Front End - SeniorAbout the jobDesigning, developing and implementing front end code including user interface interactions and creating attractive and effective user interfacesRequired to translate technical systems specifications into working, tested applications. This includes developing detailed programming specifications,...

Who We Are Verily Health is a data platform and technology company purpose-built to power AI-enabled precision health solutions that accelerate research and improve care for individuals and communities. Uniquely positioned at the intersection of technology, data science, and healthcare, Verily transforms multimodal health data into insights, models, and...

RQ11739 - Software Developer - Full Stack - Senior Posted On 26/10/2026 Job Information Term 225 days Assigned Recruiter(s) Margret Tinitha Job Opening ID 11798 Technology Number of Positions 1 Work Experience 7-10 Years City Toronto State/Province Ontario M4C Job Description Description: Designs, develops, integrates, tests, deploys, and maintains...

Powered by Passion. United by Purpose. Build for Impact. At Maple Leaf Sports & Entertainment Partnership (MLSE), we exist to deliver the ultimate fan experience by lifting trophies, spirits, and communities - united as one. We're more than a workplace. We are a team of passionate people, boldly building the future of sport and entertainment, together. We...

**Powered by Passion. United by Purpose. Build for Impact.**At Maple Leaf Sports & Entertainment Partnership (MLSE), we exist to deliver the ultimate fan experience by lifting trophies, spirits, and communities – united as one.We're more than a workplace. We are a team of passionate people, boldly building the future of sport and entertainment, together....

RQ08992 - Software Developer - Full Stack - SeniorJob Openings RQ08992 - Software Developer - Full Stack - SeniorAbout the job RQ08992 - Software Developer - Full Stack - SeniorDescription:Responsibilities Design, implement, and continuously expand data pipelines by performing extraction, transformation, and loading activities. Required to translate...

Become a key player as a Senior Software Developer specializing in Front End technologies in Toronto. Focus on developing modern, accessible web applications in an Agile setting. We're on the lookout for a Senior Front End Developer to support our cloud-native application strategies. Your role will involve close collaboration with Business Analysts, UX/UI...

Software Developer - Senior - Information TechnologyJob DescriptionA client of Innova Solutions is immediately hiring for a Software Developer - Senior Position type: Full Time Contract Duration: 4 Month Location: Toronto , ON This is an Onsite roleDay to Day ResponsibilitiesResponsible for creating architectures, roadmaps, and plans for the interconnection...

Grow your career as a Senior Full-Stack Software Developer in Canada, working full-time on impactful projects. This role emphasizes JavaScript/TypeScript and RESTful API development. With 2-6 years of experience, you'll design and maintain web applications, collaborating with product design, QA, and engineering teams. Your responsibilities will include...