Senior JEE Developer

Yoush Consulting; Toronto; On-site; CAD 80,000 - 100,000; Full time

Job summary

A consulting firm in Canada is seeking multiple Java developers to address application vulnerability issues for a public sector client. Candidates should have significant experience with Java migrations and multi-platform IT systems development. The role involves developing and implementing technology upgrades to enhance security measures. Proficiency in WebSphere and Open Liberty, along with a solid understanding of modern development tools, is essential. This is a great opportunity to grow in a supportive consulting environment.

Qualifications

• Experience migrating from WebSphere Application Server to Open Liberty or Liberty.
• 10+ years in multi-platform IT systems development.
• Experience with containerization and cloud hosting technologies.

Responsibilities

• Develop and implement technology upgrades and migrations.
• Address existing solution vulnerabilities.
• Ensure preventative measures for payment control systems.

Skills

Java migration experience

Troubleshooting compatibility issues

Multi-platform IT systems development

Experience with open-standard technologies

Knowledge of web servers and frameworks

Cloud technologies

Tools

WebSphere

Open Liberty

Oracle RDBMS

Jenkins

GIT Hub

Job description

Downtown Toronto (Ryerson), Canada | Posted on 12/27/2025

Welcometo Yoush Consulting. Are you anindependent IT Consultant or wish to become one? Areyou looking to partner with anorganization that presents you with consultingopportunities and supports you as a partner?

We require multiple Java developers with experience in application vulnerability issues and Websphere middleware. This is for a client in the public sector. Please contact us urgently if you are qualified.

You will be required to develop and implement a series of technology upgrades/migrations to address existing solution vulnerabilities and to take preventative measures for the Payment Summary Control System and Enrollment and Consent Management / Claims Data Entry applications.

Requirements

• Experience migrating from WebSphere Application Server (WAS) to Open Liberty or Liberty, and upgrading applications from Java 8 to Java 9+
• Experience patching WAS, troubleshooting compatibility and other issues.
• 10+ years demonstrated knowledge and experience of IT systems development in multi-platform environments (web, desktop, mobile, mainframe, micro/mini systems, etc.)
• Experience with multi-tiered open-standard technologies such as JSP/Servlet, JSF, JEE, EJB, JNDI, JDBC, JMS, XML, JSON, REST and SOAP-based Web Services
• Experience with Strut Framework, Tomcat, Apache, WebSphere, Open Liberty, Liberty, WebLogic, Windows Server 2012/2016/2019, .NET, VPN, PKI, LDAP, Oracle RDBMS (versions 19C+), PL/SQL, development and deployment tools (e.g. source codes and application packages management), GIT Hub, Jenkins, DevOps, Cloud technologies (containerization, hosting, deployment, networking).