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Senior Developer Canada Jobs

181 Job Offers

Senior Integration Developer
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Join a major federal financial institution's modernization project as a Senior Integration Developer. This remote role requires eligibility for a Government of Canada security clearance. You will lead the migration from MuleSoft to Spring Boot/Spring Integration, leveraging your deep Java and mes...
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Canada , Ottawa
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Not provided
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Myticas Consulting
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Until further notice
Senior Full Stack Developer
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Join Citi in Mississauga as a Senior Full Stack Developer. You will build scalable microservices and React-based front-ends for a global client platform. This role requires 5-8 years of Java/Spring and ReactJS expertise. Shape the future of a large-scale, modern technology stack.
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Canada , Mississauga
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94300.00 - 141500.00 USD / Year
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Citi
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Senior Full Stack Developer
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Lead complex web application projects as a Senior Full Stack Developer at Netsweeper in Waterloo. Utilize 10+ years of experience with React, Node.js, and microservices to design scalable solutions and mentor junior developers. Enjoy a competitive package, flexible remote options, and work on cut...
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Canada , Waterloo
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Salary
100000.00 - 140000.00 CAD / Year
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EdTech Jobs
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Senior Software Developer - Full Stack
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Join our client in Toronto as a Senior Full Stack Developer for a 12-month onsite contract. Leverage your advanced skills in React.js, Python/FastAPI, and .NET Core to design and build robust applications and data pipelines. This role requires expertise in cloud architecture, CI/CD with Azure Dev...
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Canada , Toronto
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565.97 - 601.35 CAD / Hour
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Randstad
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Senior report developer
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Join our Toronto team as a Senior Report Developer, specializing in the Oracle ecosystem. You will leverage your 7-10+ years of expertise in OTBI, BI Publisher, HDL, and Oracle Cloud HCM to build advanced analytics and reporting solutions. This role offers a hybrid work model and the chance to ar...
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Canada , Toronto
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Not provided
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Randstad
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Senior Java Developer
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Join a leading team in Mississauga as a Senior Java Developer. Utilize your 5+ years of Java and Spring Boot expertise to build enterprise-scale applications and REST APIs. Collaborate with global teams on CI/CD, Kubernetes, and innovative financial services solutions. This is a key role in devel...
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Canada , Mississauga
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94300.00 - 141500.00 USD / Year
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Citi
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Senior Python Developer
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Lead Python development for innovative Credit Risk solutions at Citi in Mississauga. Utilize your 6+ years of Python/FastAPI expertise to design enterprise applications with LLM and RAG architectures. Collaborate with global teams on cutting-edge technology in the financial sector.
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Canada , Mississauga
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120800.00 - 170800.00 USD / Year
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Citi
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Senior Angular Frontend Developer
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Lead Angular development for high-impact applications at a senior level in Mississauga. This role requires expert proficiency in Angular 11+, TypeScript, and modern frontend design patterns. You will leverage 6-10 years of experience to analyze systems, lead projects, and drive technical excellence.
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Canada , Mississauga
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120800.00 - 170800.00 USD / Year
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Citi
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Senior Java React Full Stack Developer
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Join Citi in Mississauga as a Senior Java React Full Stack Developer. Leverage 6+ years of experience with Java Spring Boot microservices and React.js/TypeScript frontends. Design scalable APIs and deploy on AWS/OpenShift, with a focus on innovative AI and LLM integration.
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Canada , Mississauga
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94300.00 - 141500.00 USD / Year
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Citi
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Senior Application Full Stack Developer
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Seeking a Senior Full Stack Developer in Mississauga to lead high-volume, low-latency Java applications for Capital Markets. This role requires 5+ years in Java, Angular, and Oracle RDBMS, with Weblogic EJB expertise. You will design, develop, and provide L3 support for critical inventory managem...
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Canada , Mississauga
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94300.00 - 141500.00 USD / Year
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Citi
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Senior Java Technology Developer
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Lead the modernization of critical Credit Risk platforms as a Senior Java Developer in Toronto/Mississauga. This senior role requires deep expertise in Core Java, microservices, and cloud-native architectures. You will re-engineer monolithic systems, leveraging TDD and Agile methodologies.
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Canada , Mississauga; Toronto
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120800.00 - 170800.00 USD / Year
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Citi
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Senior Big Data Pyspark Developer
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Join our team in Mississauga as a Senior Big Data PySpark Developer. Leverage 5-6 years of experience with Java, Spring Boot, and Microservices. Build robust solutions using Angular, Kafka, and cloud platforms in a collaborative environment.
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Canada , Mississauga
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Salary
94300.00 - 141500.00 USD / Year
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Citi
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Senior Software Developer (HVAC)
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Join GM as a Senior Software Developer (HVAC) in a hybrid role based in Markham. You will lead embedded software design and testing using C/C++ for automotive systems. This role requires 5-7 years' experience with embedded development, CAN/LIN/Ethernet logs, and Agile/Scrum. We offer a competitiv...
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Canada , Markham
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115000.00 - 164600.00 USD / Year
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General Motors
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Senior Scrum Lead and Software Developer - Exterior Lighting Controls
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Lead the Agile process and develop embedded software for next-generation vehicle lighting systems. This senior dual-role combines Scrum Master duties with hands-on C programming for automotive controls. Join a global team in Markham/Oshawa, Canada, with competitive benefits including pension matc...
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Canada , Markham; Oshawa
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115000.00 - 164600.00 USD / Year
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General Motors
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Senior Software Developer
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Seeking a Senior Software Developer for a 5-month contract in Toronto. This role requires 8+ years of SDLC experience and expertise in Microsoft .Net Framework for B2B/B2C web applications. You will provide application support, prepare deployments, and ensure smooth testing phases. Earn a competi...
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Canada , Toronto
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Salary
546.97 - 582.68 CAD / Hour
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Randstad
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Senior Software Developer - API
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Lead the design of modern REST APIs in Toronto, integrating Dynamics 365 and Azure. Utilize your deep C#, .NET Core, and Azure expertise to build secure, scalable solutions. Translate complex specs into production-ready applications within a collaborative, onsite team.
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Canada , Toronto
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Not provided
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Randstad
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Senior Software Developer
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Seeking a Senior Software Developer for an 18-month onsite contract in Toronto. This role requires deep expertise in Java (Open JDK 8/11), Spring Boot, and microservices (SOAP/REST). You will build and test applications using Docker, Kubernetes, and modern DevOps/CI/CD practices. Enjoy a competit...
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Canada , Toronto
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Not provided
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Randstad
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Senior Software Developer - Back End
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Join our client's team as a Senior Back End Developer for a 12-month onsite contract in Toronto. Leverage your 5+ years with Java Open JDK and 3+ years in Spring Boot, SOAP/REST APIs, and cloud-native tools (Docker, Kubernetes). You will develop, test, and deploy robust applications while enjoyin...
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Canada , Toronto
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Salary
543.70 - 579.46 CAD / Hour
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Randstad
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Senior Software Developer - ETL
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Seeking a Senior ETL Developer for a 12-month onsite contract in North York. Utilize your deep expertise in Azure Data Factory, Databricks, or Informatica, along with advanced SQL/PL/SQL skills. Design data models and build robust data pipelines while working with CI/CD (DevOps). This role offers...
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Canada , North York
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Salary
555.49 - 591.05 CAD / Hour
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Randstad
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Senior Software Developer
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Seeking a Senior Software Developer for a 2-month contract in North York, Canada. This role requires deep expertise in Vlocity platform tools (FlexCards, OmniScripts, LWC) and Salesforce Community Cloud. You will design accessible web applications, ensuring AODA and ODS standards, and support ful...
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Canada , North York
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Salary
554.83 - 590.41 CAD / Hour
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Randstad
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Until further notice

About the Senior Developer role

Senior Developer Jobs represent the pinnacle of technical expertise and leadership within software engineering teams. Professionals in these roles are seasoned experts who not only write high-quality code but also architect complex systems, guide technical strategy, and mentor less experienced engineers. They are the crucial bridge between high-level business objectives and practical, robust technical implementation, ensuring that software solutions are scalable, secure, and aligned with long-term organizational goals.

Typically, a Senior Developer is responsible for the entire software development lifecycle of significant components or applications. This includes leading the design and architecture of new systems, often leveraging modern paradigms like microservices and event-driven architecture. They write, review, and debug complex code, setting standards for quality and maintainability. A key part of their role involves making pivotal technology stack decisions, selecting frameworks, databases, and tools that best fit project requirements. They collaborate closely with cross-functional teams, including product managers, business analysts, and other stakeholders, to translate business needs into technical specifications. Furthermore, Senior Developers are expected to drive best practices in coding, testing, and deployment, frequently overseeing CI/CD pipelines and advocating for DevOps and security principles (DevSecOps).

The common skill set for these jobs is both deep and broad. Mastery of one or more core programming languages (such as Java, Python, C#, or JavaScript) and their associated ecosystems is fundamental. Expertise in relevant frameworks (e.g., Spring Boot, .NET Core, React, Angular) is essential. Senior Developers possess a strong grasp of system design principles, database management (both SQL and NoSQL), and API design (REST, GraphQL). Experience with cloud platforms (AWS, Azure, GCP), containerization (Docker), and orchestration (Kubernetes) is increasingly standard. Beyond technical prowess, soft skills are critical: leadership, clear communication, effective mentorship, problem-solving, and the ability to manage time and priorities across multiple projects are what distinguish a senior professional.

Typical requirements for Senior Developer jobs often include a bachelor’s degree in computer science or a related field (or equivalent practical experience) and a substantial track record, usually between 5 to 10+ years of progressive software development experience. Demonstrated experience in leading development initiatives, making architectural decisions, and working within Agile/Scrum methodologies is commonly sought. The role demands a proactive, strategic thinker who stays abreast of emerging technologies and can drive innovation while ensuring system reliability and performance. For those seeking to advance their impact beyond pure coding into areas of design, strategy, and team leadership, exploring Senior Developer jobs is the definitive next step in a thriving tech career.