Data Engineer / Backend API Engineer

**PR / Citizens who lived in Canada for more than 5 years needed due to Pro B clearance** Location- Onsite at Toronto, ON Objective Engage a contract Data Engineer / Backend API Engineer to design and implement internal backend APIs supporting an enterprise data integration platform. These internal APIs will orchestrate processing, validate data, and route requests to downstream systems, operating behind an externally exposed API layer. Scope of Work Design and build internal REST and event‑driven APIs that receive single requests from an external API layer for downstream processing Implement backend logic to: Validate, transform, and enrich incoming data Orchestrate workflow and route requests to target systems and databases Route each request to the appropriate destination system Integrate backend services with: Internal databases Downstream systems and APIs Ensure solutions meet agreed non‑functional requirements for: Reliability, scalability, and performance Logging, monitoring, and error handling Secure data handling and interface contracts Collaborate with internal application, platform, and integration teams to ensure alignment on API contracts, event schemas, and deployment timelines Produce technical documentation sufficient for operational support and knowledge transfer Technical Environment Cloud Platform: Azure (primary), AWS (secondary if required) API Styles: REST APIs and event‑driven messaging Core Technologies: Java or .NET for backend API implementation Kafka for event streaming and asynchronous processing Integration: Internal systems, databases, and downstream APIs Engagement Model Minimal discovery; work executed against a defined architecture and scope Contractor expected to work independently while coordinating with internal teams as needed Production‑ready internal backend APIs and supporting data pipelines Event‑driven integration components where required Technical documentation and handoff materials Duration & Resourcing Specific duration, capacity, and milestones to be defined within the commercial SOW. #J-18808-Ljbffr