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Senior Full stack Developer Jobs

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Senior Software Developer - Full Stack
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Senior Full Stack Developer needed for a 12-month onsite contract in Toronto. You will build Java EE and Cloud-Native apps using Angular, React, Node.js, Spring Boot, and GraphQL. Key duties include developing Web Services (SOAP/ReST) and complex Oracle PL/SQL scripts. Earn a competitive daily ra...
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Canada , Toronto
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Randstad
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Senior Software Developer - Full Stack
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Senior Full Stack Developer sought in Toronto to architect and scale high-performance web/mobile apps using React, Next.js, and Elasticsearch. You will lead the full development lifecycle—from microservices and cloud deployment to AODA/WCAG-compliant UI/UX. Requires 5+ years React expertise, 3+ y...
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Canada , Toronto
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Randstad
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Senior Software Developer - Full Stack
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Senior Full Stack Developer sought to architect scalable solutions on Oracle Cloud CX (Service Cloud) in Toronto. Requires 5+ years in Oracle Service Cloud administration and 3–5 years in JavaScript, PHP, C#, and SQL. Drive CI/CD, DevOps, and full-stack development from UI to microservices. Lead ...
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Canada , Toronto
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Randstad
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Senior Full Stack Developer
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Senior Full Stack Developer role in London with an innovation-led organisation using AI and digital products to solve complex societal challenges. You’ll own a core platform, build new features, integrate AI, and ensure scalability. Requires strong experience in React, TypeScript, C#, and AWS. A ...
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United Kingdom , London
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65000.00 - 75000.00 GBP / Year
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Data Idols
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Senior Full Stack Developer – Blazor / .NET
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Senior Full Stack Developer – Blazor / .NET sought for a major digital transformation in Belgium’s mobility sector. Join an Agile team building a complex planning system using .NET, Blazor, and Azure. Requires 8+ years’ Microsoft expertise, strong C# and SQL Server skills, and fluency in English ...
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Belgium , Brussels
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547.00 - 600.00 EUR / Hour
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Myn
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Senior Full Stack Application Development Lead- Wealth Technology, SVP
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Senior Full Stack Application Development Lead sought for Wealth Technology at SVP level. This backend-focused role requires 10+ years of experience in Java or Python, with a strong emphasis on integrating AI-driven features. Based in Jersey City or Irving, you will lead end-to-end project lifecy...
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United States , Jersey City; Irving
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176720.00 - 265080.00 USD / Year
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Citi
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Senior Full Stack Developer- Java. Camunda
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Senior Full Stack Developer (Java, Camunda) sought for a greenfield project in Pune. You will define architecture, build scalable microservices, and lead BPMN process automation using the Camunda Engine. Ideal candidates have strong Java, Spring Boot, and event-driven architecture skills. This ro...
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India , Pune
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Vodafone
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Senior Software Developer - Full Stack
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Senior Full Stack Developer needed for a 15-month onsite contract in North York. Leverage 10+ years of experience in public sector healthcare IT, including OPS methodologies and clinical system integration. You will support the m-IMMS UI, enhance system maintainability, and align with provincial ...
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Canada , North York
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Randstad
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Senior Full Stack Java Developer
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Senior Full Stack Java Developer sought in Mississauga, Canada. Leverage 5+ years of expertise in Java, React, Spring Boot, and Oracle to lead application systems analysis and programming. Design and maintain robust web applications using Microservices, REST, and GraphQL, with practical AI tool e...
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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 Full Stack Developer
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Senior Python Full Stack Developer sought in Bangalore to lead scalable app development with Python, FastAPI, and React/Vue/Angular. Drive AI-powered features, LLM workflows, and microservices using Docker, Kubernetes, and cloud platforms (AWS/Azure/GCP). Expertise in API design, CI/CD, and datab...
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India , Bangalore
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AMD
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Full-Stack Senior Developer
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Senior Full-Stack Developer sought for high-impact projects with clients like PayPal and adidas. You'll leverage 5+ years of expertise in JavaScript and PHP (Laravel) for a 60-70% frontend and 30-40% backend role. Key requirements include strong web fundamentals, RESTful API design, and CI/CD exp...
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Itransition
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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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100000.00 - 140000.00 CAD / Year
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EdTech Jobs
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Senior Full Stack Developer
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Seeking a Senior Full Stack Developer in New York City with 8+ years of expertise in Java and React. You will design, develop, and operate reliable, full-stack applications in a Kubernetes environment. This role emphasizes a GitOps-driven lifecycle, CI/CD, and owning production systems from desig...
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United States , New York City
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NTT DATA
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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 Full Stack Developer
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Seeking a Senior Full Stack Developer in New York City to design and operate end-to-end applications. This role requires deep expertise in Java, React, and Kubernetes, with a strong focus on scalable APIs and DevOps/GitOps practices. You will own the full SDLC, building high-availability systems ...
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United States , New York City
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NTT DATA
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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 Full Stack Developer
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Join our team in Merrimack as a Senior Full Stack Developer. You will design and build enterprise applications using Java, Spring Boot, and Angular. This hybrid role requires 8+ years of experience and expertise in cloud services, Kafka, and CI/CD. Collaborate in an agile environment to deliver h...
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United States , Merrimack
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NTT DATA
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Senior Full Stack Developer, Product Management - Experience Prototyping
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Join GM's Product Management team as a Senior Full Stack Developer in Experience Prototyping. Rapidly build functional prototypes for next-gen vehicle and mobile software experiences. Leverage your expertise in Android (Jetpack/Compose), Node.js, Spring Boot, and multi-system integration. This ro...
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United States , Mountain View, California; Warren, Michigan
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153200.00 - 234100.00 USD / Year
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General Motors
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About the Senior Full stack Developer role

Explore the pinnacle of software engineering careers with Senior Full Stack Developer jobs. This senior-level role represents a critical and highly sought-after position within the technology landscape, blending deep technical expertise with strategic leadership. A Senior Full Stack Developer is a versatile architect of digital solutions, proficient in both front-end and back-end technologies, responsible for building, deploying, and maintaining complex, scalable, and secure enterprise-grade applications. These professionals are the cornerstone of modern development teams, translating business requirements into robust technical realities across the entire software development lifecycle.

The core responsibility of a Senior Full Stack Developer is end-to-end ownership of application systems. This involves designing system architecture, writing high-quality, maintainable code, and integrating various software components and third-party services. They lead the development of user interfaces using frameworks like Angular or React, while simultaneously engineering powerful server-side logic, APIs, and microservices with technologies such as Java Spring Boot or Node.js. Beyond coding, they ensure application performance, quality, and responsiveness. A significant part of the role involves mentoring mid-level and junior developers, conducting code reviews, and establishing best practices for coding, testing, and security. They are key collaborators, working closely with product managers, business analysts, UX/UI designers, and infrastructure teams to align technical execution with business goals.

Typical day-to-day duties include analyzing and refining functional requirements, troubleshooting and debugging complex issues, and optimizing applications for maximum speed and scalability. They implement rigorous testing protocols, including unit and integration tests, and champion CI/CD pipelines for automated deployment. Senior Full Stack Developers are also guardians of software security, proactively addressing vulnerabilities and ensuring compliance with industry standards like OWASP. They often participate in or lead Agile ceremonies, manage technical debt, and stay abreast of emerging technologies, such as cloud-native development, containerization with Docker/Kubernetes, and generative AI tools, to drive innovation and efficiency.

The skill set for these senior roles is comprehensive. On the technical front, proficiency in both front-end (JavaScript, TypeScript, HTML/CSS) and back-end (Java, .NET, Python, etc.) languages is essential, coupled with expertise in relevant frameworks, relational and NoSQL databases, and version control systems like Git. Equally important are the leadership and soft skills: excellent problem-solving and analytical abilities, clear communication for both technical and non-technical audiences, project management, and a strong sense of ownership and risk awareness. Most positions require a bachelor's degree in computer science or a related field and a substantial track record of professional experience, typically 8-15 years, demonstrating progressive responsibility and successful project delivery. For those seeking to lead from the front lines of technology, Senior Full Stack Developer jobs offer a challenging and rewarding path to shape the digital future.

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