Senior Java Full Stack Developer
Posted Updated 9
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Summary
Fully onsite senior contract in Toronto: design and maintain large-scale enterprise web applications across full-stack layers, building Java microservices, secure REST APIs (OAuth 2.0, JWT, SSL), tuning relational databases, and maintaining Azure DevOps CI/CD pipelines. Requires 10+ years of experience.
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 web frameworks. You will build reusable platform services and microservices within an Agile environment.
Key Responsibilities:
Design and maintain enterprise application code across full-stack layers Build scalable Java microservices, REST APIs, and web services Optimize relational databases, queries, and data transformation pipelines Implement OAuth 2.0, JWT, SSL, and identity integrations Maintain Azure DevOps pipelines and automated deployment scripts Requirements:
Ten or more years designing large-scale multi-client web applications Extensive hands-on Java and relational database development experience Significant REST API and microservices architecture experience Experience with security gateways, JWT, OAuth 2.0, and SSL Experience with SQL tuning, middleware, conversion, and data migration Apply senior Java development, microservices, database optimization, and security expertise to enterprise applications in Toronto.
Design and maintain enterprise application code across full-stack layers Build scalable Java microservices, REST APIs, and web services Optimize relational databases, queries, and data transformation pipelines Implement OAuth 2.0, JWT, SSL, and identity integrations Maintain Azure DevOps pipelines and automated deployment scripts Requirements:
Ten or more years designing large-scale multi-client web applications Extensive hands-on Java and relational database development experience Significant REST API and microservices architecture experience Experience with security gateways, JWT, OAuth 2.0, and SSL Experience with SQL tuning, middleware, conversion, and data migration Apply senior Java development, microservices, database optimization, and security expertise to enterprise applications in Toronto.