Senior Software Developer – Java & Microsoft Azure

Senior Software Developer – Java & Microsoft Azure Assignment Number: A2930470 Client: Government Services Integration Cluster (GSIC), Government of Ontario Ministry: Ministry of Public and Business Service Delivery and Procurement Location: 222 Jarvis Street, 5th Floor, Toronto, Ontario Work Arrangement: 100% Onsite – 5 days per week Contract Start Date: November 2, 2026 Contract End Date: September 28, 2027 Contract Duration: Approximately 230 business days, with one possible extension Position Type: Full-Time Contract – 100% Allocation Number of Positions: 1 Security Clearance: No clearance required Position Overview The Government Services Integration Cluster (GSIC), Government of Ontario, is seeking an experienced Senior Software Developer with strong Java, Microsoft Azure, cloud-native microservices, and technical team leadership expertise to design, develop, integrate, test, deploy, and maintain complex enterprise and public-facing applications. The successful candidate will be responsible for delivering high-quality, secure, scalable, and maintainable software components in alignment with approved solution architecture, technical designs, security requirements, and development standards. This role requires a hands-on senior developer who can lead development activities, guide technical direction, mentor developers, conduct code reviews, troubleshoot complex technical issues, and support end-to-end application delivery. The candidate must have demonstrated experience leading and managing development teams while ensuring that solutions meet business requirements, architectural standards, quality expectations, and delivery objectives. Important: This is a 100% onsite position at 222 Jarvis Street, Toronto, five days per week. Candidates must be comfortable working onsite for the full assignment. Key Responsibilities 1. Software Development and Application Engineering • Design, develop, configure, test, deploy, and maintain complex enterprise and public-facing applications using Java. • Translate technical specifications, user stories, business requirements, and acceptance criteria into functional, reliable, and maintainable software. • Develop and maintain application components, including user interfaces, APIs, business logic, integration services, data-access layers, and database components. • Apply object-oriented programming principles, structured development practices, and Agile methodologies throughout the software development lifecycle. • Participate in solution design, technical planning, architecture discussions, and development estimation. • Ensure that application components comply with approved technical designs, architecture, coding conventions, documentation requirements, and security standards. 2. Cloud Development, Microservices, and Integration • Develop, configure, and deploy cloud-based microservices and application components within the Microsoft Azure environment. • Design, develop, and maintain APIs, service interfaces, integration services, and enterprise application integrations. • Apply appropriate API design and integration patterns to support secure, reliable, and maintainable communication between application components and external systems. • Support continuous integration and continuous deployment (CI/CD) pipelines, automated deployment processes, and configuration management. • Contribute to application configuration, environment management, monitoring, and operational readiness. • Troubleshoot integration failures and resolve issues affecting application performance, availability, reliability, and interoperability. • Support deployment planning, production-readiness assessments, implementation activities, and post-deployment stabilization. 3. Automated Testing, Security, and Quality Assurance • Develop, implement, and maintain automated unit, integration, API, database, and user-interface tests. • Validate application functionality, integration points, data processing, and system behaviour against technical specifications and acceptance criteria. • Apply secure coding practices and address identified software vulnerabilities and security concerns. • Conduct code reviews to identify defects, security weaknesses, maintainability concerns, and deviations from development standards. • Diagnose and resolve complex defects, performance bottlenecks, reliability issues, and integration problems. • Improve application quality, test coverage, performance, scalability, and long-term maintainability. • Collaborate with quality assurance teams and support system testing, user acceptance testing, defect resolution, and release readiness. 4. Technical Leadership and Development Team Management • Provide demonstrated team and solution leadership across software development activities. • Lead and manage development teams, coordinate development work, and help ensure delivery commitments are achieved. • Guide technical direction and ensure that implementation decisions remain aligned with approved architecture, technical designs, and project objectives. • Mentor developers and provide hands-on technical guidance within multidisciplinary teams. • Conduct code reviews and provide actionable feedback to improve code quality, consistency, security, and maintainability. • Coordinate development activities, identify technical dependencies, manage development risks, and resolve technical challenges. • Support sprint planning, release planning, effort estimation, work prioritization, and technical decision-making. • Promote development best practices, collaborative problem-solving, knowledge sharing, and continuous improvement. 5. Documentation, Deployment, and Operational Support • Prepare and maintain technical documentation, including design notes, API documentation, configuration details, deployment procedures, and support documentation. • Communicate technical issues, root causes, risks, dependencies, and recommended solutions clearly to technical and non-technical stakeholders. • Support deployment coordination, implementation planning, production-readiness activities, and post-implementation stabilization. • Collaborate with business analysts, architects, testers, project managers, operations teams, and other technical specialists. • Identify opportunities to improve development processes, automation, software reliability, application performance, and delivery efficiency. Requirements Mandatory Qualifications and Experience Candidates must demonstrate relevant experience in the following areas: A. Java Software Development • Experience developing and maintaining complex enterprise applications using Java. • Experience developing complex enterprise or public-facing applications. • Experience translating technical specifications, user stories, and acceptance criteria into working software. • Experience implementing user interfaces, APIs, services, integrations, business logic, data-access layers, and database components. • Experience applying object-oriented programming, structured development practices, and Agile development methodologies. B. Microsoft Azure, Cloud, and Integration • Experience developing and deploying cloud-based applications, including microservices in Microsoft Azure. • Experience designing, developing, and maintaining APIs, integration services, and application interfaces. • Experience with enterprise integration patterns, automated deployment pipelines, continuous integration and deployment, and configuration management. • Experience supporting application monitoring, operational readiness, deployment activities, and post-implementation stabilization. C. Automated Testing, Security, and Code Quality • Experience developing automated tests for user interfaces, APIs, and databases. • Experience developing and maintaining unit, integration, and API tests. • Experience reviewing code and enforcing development, security, documen