Position: Senior Full Stack Java Developer

Client: Community Services Cluster, Ministry of Public and Business Service Delivery and Procurement, Government of Ontario

Location: 777 Bay Street, Toronto, ON

Contract: September 28, 2026 – August 30, 2027

Openings: 2

Security Clearance: No clearance required

Position Overview

We are seeking two Senior Software Developers – Full Stack to support the development, integration, enhancement, testing, deployment, and maintenance of business-critical web applications within the Ontario Public Sector.

Experience delivering secure, scalable, responsive, and AODA-compliant web applications is highly valued.

Key Responsibilities

- Design, develop, configure, integrate, test, debug, document, deploy, and maintain enterprise software applications.

- Translate technical system specifications and business requirements into working, tested applications.

- Develop and maintain Java/J2EE web-based applications using n-tier architecture.

- Develop front-end interfaces and integrate them with back-end services and APIs.

- Design, construct, consume, and integrate RESTful and SOAP web services .

- Develop and maintain data pipelines involving extraction, transformation, and loading activities.

- Develop database solutions and perform SQL scripting using Oracle and SQL Server .

- Work with relational database technologies and RDBMS concepts.

- Develop reusable, self-contained, testable software components and modules.

- Apply current software architecture principles, design patterns, and development standards.

- Troubleshoot and resolve application, integration, deployment, migration, and production issues.

- Support application implementation, conversion, migration, and post-implementation activities.

- Participate directly throughout the Agile/iterative Software Development Life Cycle (SDLC) .





- Conduct and participate in technical/design walkthroughs with project teams.

- Collaborate with developers, architects, business stakeholders, SMEs, and other IT professionals.

- Develop technical and system documentation as required.

- Support continuous integration and deployment activities.

- Ensure applications are designed for performance, scalability, maintainability, and reliability.

- Ensure solutions comply with applicable accessibility requirements, including AODA .

- Assist with reviewing, analyzing, modifying, testing, and debugging installation/deployment scripts.

- Provide technical assistance and support for software packages and applications.

Requirements

Mandatory Technical Skills

Candidates must have hands-on experience with the following technologies :

- JAVA

- J2EE

- JSF

- HTML / DHTML

- XML / XSL

- Experience with Servlets, EJB, Tomcat and/or WebLogic is required/desirable within the broader technology stack.

Open-Source Frameworks & Libraries

- Spring
- myBatis
- jQuery

- Experience with contemporary web development frameworks and reusable components.

Full-Stack Web Development

- Front-end and back-end application development.

- Web architecture and n-tier application architecture.

- Front-end and API integration.

- Development of reusable, self-contained, and testable UI modules/components.

- Ability to develop front-end code capable of querying and consuming APIs.

- Understanding of UX/UI principles.

Database / SQL

- Oracle Database

- Oracle SQL scripting

- Relational Database Management Systems ( RDBMS ).

- Experience with SQL Server .

- Database design, implementation, integration, and management.

APIs & Web Services

- REST / RESTful APIs

- SOAP web services

- Web Services development and integration.

- API design, development, consumption, and front-end integration.

- Swagger/OpenAPI knowledge is an asset

📌 Senior Full Stack Java Developer (Toronto)
🏢 SereneAid
📍 Toronto