Senior Full Stack Java Developer

Senior Full Stack Java Developer
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
Work Arrangement: 100% Onsite – 5 days per week
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.
The successful candidates will have strong hands-on experience across Java/J2EE full-stack development, including JSF, HTML/DHTML, XML/XSL, Spring, myBatis, Bootstrap, JavaScript, REST/SOAP web services, Oracle SQL, and relational databases. Candidates should be comfortable working across front-end and back-end components, APIs, database integration, application architecture, troubleshooting, and Agile SDLC environments.
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 / Enterprise Development

• JAVA
  
• J2EE
  
• JSF
  
• HTML / DHTML
  
• XML / XSL
  
• Java web application development
  
• Experience with Servlets, EJB, Tomcat and/or WebLogic is required/desirable within the broader technology stack.
  

Open-Source Frameworks & Libraries

• Spring
  
• myBatis
  
• Bootstrap
  
• jQuery
  
• Experience with modern web development frameworks and reusable components.
  

Full-Stack Web Development

• Front-end and back-end application development.
  
• Web architecture and n-tier application architecture.
  
• Responsive web development.
  
• Front-end and API integration.
  
• HTML, CSS, JavaScript and Angular/AngularJS experience.
  
• 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
  
• Strong SQL skills.
  
• 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.
  

Development / SDLC

• Experience directly supporting the Agile/iterative SDLC.
  
• Systems design, configuration, integration, and development.
  
• Design, coding, testing, debugging, deployment, and documentation.
  
• Application troubleshooting and production support.
  
• Structured software development methodologies.
  
• CI/CD and deployment experience.
  
• Azure DevOps and JIRA experience is an asset.
  

Full-Stack Development Requirements
The successful candidate should demonstrate the ability to work across the complete application stack, including:

• Web architecture and application design.
  
• Front-end interface development.
  
• Back-end Java/J2EE development.
  
• REST API development and integration.
  
• Database design and SQL development.
  
• Front-end/API integration.
  
• Application performance and scalability.
  
• Continuous integration and deployment.
  
• Application testing and debugging.
  
• Production troubleshooting and technical support.
  

Additional Technical Experience
Experience with the following will be considered an asset:

• Angular / AngularJS and JavaScript.
  
• Java WebLogic and Tomcat.
  
• EJB and Servlets.
  
• Jasper reporting tools.
  
• Middleware and gateways.
  
• Swagger/OpenAPI.
  
• Rapid Application Development (RAD) methodologies.
  
• Internet-ready applications.
  
• Responsive web applications.
  
• AODA-compliant application development.
  
• Information Management principles, policies, concepts, and practices.
  
• Application installation and deployment scripts.
  
• Data extraction, transformation, and loading (ETL) processes.
  

Analytical & Problem-Solving Skills

• Strong analytical skills with the ability to evaluate technical options and recommend appropriate solutions.
  
• Ability to assess feasibility, identify risks, and develop customized strategies for complex technical problems.
  
• Strong troubleshooting and debugging capabilities.
  
• Ability to understand complex technical and business requirements.
  
• Excellent decision-making and problem-solving skills.
  
• Ability to work independently while collaborating effectively with technical and business teams.
  

Communication & Collaboration

• Strong verbal and written communication skills.
  
• Ability to elicit and document information from business stakeholders and subject matter experts.
  
• Strong consultation and interpersonal skills.
  
• Ability to lead or participate in discussions regarding system-development options and technical processes.
  
• Strong teamwork and collaboration skills.
  
• Demonstrated ability to meet deadlines in a complex project environment.
  

Public Sector Experience – Asset
The following experience is considered an asset:

• Experience developing applications within the Public Sector.
  
• Knowledge of Public Sector application and information architecture.
  
• Familiarity with GO-ITS standards.
  
• Familiarity with Public Sector Threat Risk Assessment (TRA) processes.
  
• Familiarity with Privacy Impact Assessment (PIA) processes.
  
• Experience working within government technology standards and structured methodologies.
  

Accessibility

• Experience developing AODA-compliant web applications is an asset.
  
• Understanding of accessibility standards and regulations applicable to Ontario government applications.
  
• Ability to design and develop accessible, responsive, user-friendly web interfaces.
  

Candidate Profile
The ideal candidate is a Senior Full Stack Java Developer with strong enterprise application development experience and the ability to work across front-end, back-end, API, database, integration, and deployment layers.
Candidates should have particularly strong experience with:
Java + J2EE + JSF + HTML/DHTML + XML/XSL + Spring + myBatis + Bootstrap + Oracle SQL + n-tier web applications + REST/SOAP Web Services + Agile SDLC.
Mandatory Requirements – Quick Screening Checklist

• Senior-level software development experience.
  
• Strong hands-on JAVA development experience.
  
• J2EE experience.
  
• JSF experience.
  
• HTML/DHTML experience.
  
• XML/XSL experience.
  
• Experience with Spring.
  
• Experience with myBatis.
  
• Experience with Bootstrap.
  
• Hands-on n-tier web-based application development.
  
• Hands-on experience with Oracle Database.
  
• Strong Oracle SQL scripting experience.
  
• Strong understanding of RDBMS.
  
• Experience with Web Services / REST and/or SOAP.
  
• Experience supporting the Agile/iterative SDLC.
  
• Experience with systems design, configuration, integration, development, testing, and troubleshooting.
  
• Ability to work as a full-stack developer across front-end and back-end components.
  
• Ability to work onsite 5 days per week at 777 Bay Street, Toronto.
  

Nice to Have

• Public Sector / Government of Ontario experience.
  
• GO-ITS standards.
  
• TRA / PIA experience.
  
• AODA-compliant application development.
  
• Angular / AngularJS.
  
• JavaScript.
  
• WebLogic / Tomcat.
  
• EJB / Servlets.
  
• Jasper.
  
• Azure DevOps.
  
• JIRA.
  
• Swagger/OpenAPI.
  
• Middleware/gateway experience.
  

Important: This is a fully onsite position in Toronto, 5 days per week. Candidates must be able to work onsite at 777 Bay Street, Toronto, Ontario.