The client is seeking a Senior Full Stack Developer with extensive experience designing and developing large-scale, multi-client web applications.

The successful candidate will have strong hands-on experience across Java backend development, modern front-end technologies, REST APIs, microservices, databases, responsive web development, accessibility standards, and Azure Dev

Ops.

Responsibilities Design, develop, test, debug, maintain, and enhance large-scale web applications.

Translate technical system specifications into working and tested applications.

Develop detailed programming specifications and application code.

Perform unit testing, troubleshooting, implementation, conversion, and migration activities.

Design and develop scalable front-end and backend application components.

Develop RESTful API services and integrate them with front-end applications.

Support database design and development using Oracle and SQL Server.

Design applications for performance, scalability, extensibility, and maintainability.

Develop reusable, testable, and modular application components.

Support continuous integration and deployment activities using Azure Dev

Ops.

Participate in application architecture, solution design, deployment, and post-implementation support.

Conduct design walkthroughs and provide technical documentation.

Collaborate with technical and business teams throughout the Software Development Life Cycle.

Ensure solutions comply with WCAG and AODA accessibility requirements.

Support data pipeline activities involving extraction, transformation, and loading.





Mandatory Skills and Experience 10+ years of experience designing and developing large-scale, multi-client web applications. 10+ years of hands-on Java development experience with Oracle or SQL databases. 5+ years of hands-on experience with REST APIs, React, Type

Script, HTML5, CSS3, and Node.js.

Working experience with RxJS, Next.js, and Vue.js.

Strong knowledge of microservice architecture.

Experience with responsive web application development.

Experience using Azure Dev

Ops.

Proven experience with WCAG and AODA.

Robust knowledge of Object-Oriented programming, design patterns, refactoring, and clean code.

Knowledge of message-oriented, reactive, and event-based architectural styles.

Additional Technical Skills Java

Script Angular / AngularJS Swagger Oracle SQL Server Tomcat Web

Logic EJB Servlets REST and SOAP Web Services JWT OAuth 2.0 SSL Certificates CI/CD JIRA Agile / Scrum UX/UI fundamentals Database design and management Nice to Have Previous Ontario Public Service or other public-sector experience.

Knowledge of blockchain and smart-contract development using Solidity.

Experience with middleware and gateways.

Experience with rapid application development methodologies.

Soft Skills Strong written and verbal communication skills.

Strong analytical and problem-solving abilities.

Ability to work effectively with functional and technical teams.

Strong interpersonal and collaboration skills.

Ability to work under pressure and meet aggressive timelines.

Ability to adapt to changing project requirements.

📌 Full Stack Developer (Toronto)
🏢 Teckhorizon
📍 Toronto