Software Developer - Full Stack - Senior

Upstaff (Toronto ON, Canada) Follow 1 day ago

Temporary 70 CAD

Position Title: Software Developer – Full Stack

Client: Land & Resources Cluster

Location: 40 St Clair Ave W

Overview
We are seeking a highly experienced Full Stack Software Developer with 15+ years of IT experience and at least 10 years of hands-on expertise in Java-based enterprise application development. The successful candidate will be responsible for modernizing legacy applications, developing and enhancing web-based solutions, supporting data migration initiatives, and delivering secure, scalable, and accessible applications within a Government of Ontario environment.

This role requires strong experience across front-end and back-end technologies, Oracle databases, DevOps practices, application modernization, vulnerability remediation, and Agile delivery methodologies.

Key Responsibilities

Lead the design, development, testing, implementation, and maintenance of enterprise application components.
Modernize legacy applications and migrate existing solutions to contemporary architectures and frameworks.
Design and develop web-based user interfaces using Angular and modern UI technologies.
Develop Java/J2EE-based application components utilizing Spring Boot, EJB, STRUTS, Web Services, XML, and related technologies.
Create and maintain database objects, PL/SQL procedures, scripts, and data migration solutions.
Develop scripts and tools for data conversion, integration, and migration between source and target systems.
Analyze business requirements and translate them into technical solutions and application designs.
Collaborate with Business Analysts, QA teams, Architects, and stakeholders throughout the SDLC.
Perform coding, unit testing, integration testing, debugging, defect resolution, and deployment activities.
Prepare deployment packages and coordinate releases across development, testing, staging, and production environments.
Conduct code reviews, design reviews, and technical walkthrough sessions.
Ensure compliance with Government of Ontario IT standards, security requirements, and accessibility regulations (AODA).
Identify and remediate application vulnerabilities and security issues.
Troubleshoot performance, scalability, and availability issues and implement corrective measures.
Produce and maintain technical documentation, solution designs, deployment guides, and operational procedures.
Lead defect management activities during testing and implementation phases.
Facilitate technical workshops, demonstrations, knowledge-sharing sessions, and stakeholder meetings.
Provide status reporting, effort estimates, risk assessments, and recommendations throughout project execution.

Support knowledge transfer activities and ensure complete documentation handover to ministry staff.

Requirements

Required Qualifications

Experience

15+ years of overall software development experience.
10+ years of experience developing enterprise applications using Java technologies.
Extensive experience working within full software development lifecycle (SDLC) methodologies.
Experience supporting modernization of legacy applications and enterprise systems.
Experience working in Agile, Scrum, Lean, and DevOps environments.
Experience delivering solutions within large-scale government or public-sector organizations is highly desirable.

Technical Skills

Backend Development

Java, J2EE
Spring Boot
EJB
STRUTS Framework
REST/SOAP Web Services
XML

Frontend Development

Angular
Node.js
JavaScript/TypeScript
Responsive Web UI Development

Database & Data Migration

Oracle Database
PL/SQL
Database Design and Development
SQL Optimization
Data Migration and Conversion
Oracle Forms & Reports
Oracle Application Suite

Middleware & Application Servers

IBM WebSphere
Application Integration Technologies

DevOps & Automation

DevOps Tools and Practices
CI/CD Pipelines
Shell Scripting
Build and Release Management

Reporting & Document Generation

PDF Generation
Report Development and Generation

Security & Compliance

Vulnerability Assessment and Remediation
Secure Coding Practices
Government Security Standards
Accessibility for Ontarians with Disabilities Act (AODA) Compliance

Core Competencies

Strong analytical and problem-solving skills.
Excellent verbal and written communication skills.
Ability to work effectively with technical and business stakeholders.
Experience documenting technical solutions and architecture designs.
Strong estimation, planning, and prioritization capabilities.
Ability to manage multiple concurrent initiatives.
Proven leadership in development teams and technical delivery.
Experience conducting design reviews, code reviews, and technical presentations.

Nice-to-Have Qualifications