Job Description

We are seeking a highly skilled and experienced Senior Full Stack Developer (Java) to lead the design, development, and maintenance of scalable web applications and enterprise solutions. This technical leadership role involves collaborating with cross-functional teams, mentoring developers, and ensuring the performance and stability of mission-critical systems. The incumbent will manage ongoing maintenance, enhancements, and upgrades of both commercial off-the-shelf (COTS) and custom web-based applications, along with associated Microsoft SQL databases.

Key Responsibilities:

• Lead the design, development, and maintenance of enterprise-level applications on the J2EE platform, including front-end and back-end components.
• Architect scalable, modular, and reusable solutions that align with industry best practices.
• Ensure application performance, responsiveness, and cross-platform compatibility.
• Develop detailed technical specifications and contribute to the overall solution architecture.
• Conduct and lead code reviews, enforcing coding standards and mentoring junior team members.
• Collaborate with internal IT teams and external partners to develop, test, and deploy application fixes and enhancements.
• Participate in system integration, regression testing, and performance tuning activities.
• Prepare and maintain comprehensive documentation for software development and support processes.
• Provide Tier 3 application support including incident resolution, upgrades, and patch management.
• Troubleshoot complex application and database issues, perform root cause analysis (RCA), and collaborate with internal and external stakeholders.
• Deliver off-hours support when required to ensure service availability.
• Lead the implementation of new features aligned with evolving business needs.
• Guide and support junior developers through code reviews and knowledge sharing.
• Contribute to cross-functional, matrix-managed projects with attention to timelines and budgets.
• Drive technical excellence and innovation through continuous learning and strategic recommendations.
• Perform other related technical or leadership duties as assigned.

Qualifications:

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field.
• Minimum 7 years of experience in developing and supporting large-scale, complex web applications using:
• Java
• Spring Framework
• Open-source frameworks
• COTS tools
• Relational databases (Oracle and/or Microsoft SQL Server)
• Proven expertise as a Full Stack Developer with strong command of both front-end and back-end technologies.
• Proficiency in HTML5, CSS, and JavaScript frameworks such as AngularJS, Angular, and jQuery.
• Strong understanding of software design patterns, architecture principles, and development methodologies.
• Excellent diagnostic and troubleshooting skills for web applications and underlying systems.
• Experience with SDLC and Agile development practices.
• Demonstrated experience with highly available architectures and disaster recovery implementations.
• Hands-on experience with tools and platforms such as:
• JBoss Application Server
• AngularJS
• Node.js
• Java, Python
• MySQL
• Apache Tomcat
• Microsoft Windows and Red Hat OS
• Familiarity with Government of Ontario IT Standards (GO-ITS) is an asset.
• Strong ownership mindset and ability to support mission-critical systems under pressure.
• Ability to work independently and lead complex technical initiatives with minimal supervision.