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Ref: RQ11738 Contract – 11 Months (Extension Possible) Onsite – Toronto (222 Jarvis St. 5th Floor)
Posted Date: 2026-10-26
Location: Onsite – Toronto (222 Jarvis St. 5th Floor)
Public Sector Experience: Required – OPS / Public Sector
Contract End Date: 2027-09-28 *
Rate: $103/hour
Overview
The Government Services Integration Cluster (Ministry of Public and Business Service Delivery and Procurement) is seeking a Senior Software Developer – Full Stack to design, develop, integrate, and maintain enterprise platform capabilities across the full application stack. Working alongside architects, product managers, UX designers, QA specialists, DevOps engineers, and ministry partners, you will build reusable platform services that support multiple government programs while delivering secure, scalable, and maintainable software through frequent Agile releases and new integrations.
Key Responsibilities
- Translate approved technical system specifications into working, tested, secure, and maintainable enterprise platform applications.
- Design and develop frontend, backend, API, integration, workflow, middleware, and data-access components using approved patterns and standards.
- Build and maintain Java-based microservices, REST APIs, RESTful web services, Internet-ready applications, and reusable platform services.
- Develop and maintain database objects, queries, data transformations, conversion routines, and integration components using relational or hierarchical database technologies.
- Implement security gateways and protocols, including identity, access, token, certificate, and secure communications requirements (JWT, OAuth 2.0, SSL).
- Create and maintain automated unit, integration, API, database, and user-interface tests.
- Participate in design walkthroughs, code reviews, impact assessments, estimation, backlog refinement, sprint planning, and technical decision-making.
- Review, analyse, and modify build, configuration, product-installation, and deployment scripts including coding, testing, and debugging.
- Resolve and troubleshoot technical problems arising during development, implementation, conversion, migration, deployment, and operation.
- Provide post-implementation support, resolve production issues, and improve application performance, reliability, extensibility, and maintainability.
- Collaborate with business analysts, architects, UX designers, testers, DevOps engineers, and security specialists throughout the full software development lifecycle.
- Prepare and maintain user, system, technical, deployment, and support documentation.
Must-Have Requirements
- 10+ years of experience designing and developing large-scale, multi-client web applications, or equivalent depth of senior development experience.
- Extensive hands-on Java development experience with Oracle, SQL, or comparable relational database technologies.
- Significant experience designing and developing REST APIs and RESTful web services.
- Proven experience with microservice architecture and applying core architecture principles to improve extensibility and maintainability.
- Experience with object-oriented coding practices, current design patterns, refactoring, clean code, and structured development methodologies.
- Experience developing Internet-ready applications using Agile or rapid application development approaches.
- Experience with relational and hierarchical database technologies, query languages, SQL tuning, and data-access components.
- Experience with security gateways and protocols including JSON Web Tokens (JWT), OAuth 2.0, and SSL certificates.
- Experience with middleware, gateways, communications protocols, enterprise integrations, and data migration or conversion activities.
- Experience using Azure DevOps or comparable tools for work management, source control, build, testing, and deployment pipelines.
- Experience conducting design walkthroughs, code reviews, impact assessments, and technical troubleshooting.
Nice-to-Have Skills
- Experience eliciting and documenting requirements from diverse business stakeholders, subject-matter experts, architects, and IT professionals.
- Experience providing implementation, conversion, migration, and post-implementation support for complex enterprise applications.
- Strong written and verbal communication, analytical, problem-solving, and negotiation skills with the ability to present ideas and lead technical discussions across functional and technical teams.
Work Environment
This is a fully onsite role based at 222 Jarvis St., 5th Floor, Toronto, ON, 5 days per week. The team follows Agile delivery methodologies including sprint planning, backlog refinement, and iterative releases. No security clearance is required for this engagement.
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- Final role details, responsibilities, and terms will be confirmed with shortlisted candidates. Compensation may vary based on experience. Errors and omissions excepted.
