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Job Title: Software Developer Location: Toronto, ON Job Type: Temporary - Permanent Salary: $$ Work Model: Hybrid
This posting is for an existing vacancy.
Our client in Toronto, ON is actively looking for a Software Developer to join their team. Position Description: ) Build System Connectivity & Data Collection
Design and implement connectors to pull key datasets from multiple systems (APIs, databases or file drops).
Normalize incoming data into a consistent model for comparisons.
Implement robust retry and error-handling for integrations.
) Comparison Engine / Rules & Exception Detection
Build a configurable rules engine to compare records/aggregates across systems: Field-to-field comparisons (, store ID, business date, sales totals) Cross-system completeness checks (expected records present) Tolerance-based thresholds (, variance > X) Time-window checks (, "last updated” SLA)
Produce clear "diff” outputs: what differs, by how much, and suggested root-cause hints (, mapping issues, late loads).
) Web Platform (UI + APIs)
Build a web UI that supports: Overview health dashboard Discrepancy explorer (filters by system/store/date/type/severity) Issue detail pages with traceability (source payload snapshot / correlation IDs) Admin configuration for rules, thresholds, alert recipients (role-based)
Build backend APIs to serve the UI and support automation.
) Alerting, Observability, and Operations
Implement alert routing (email/Teams) with deduplication, escalation
Add monitoring: logs, metrics, traces, dashboards, and runbooks for on-call support.
Create audit trails for rule changes and alert acknowledgements.
) Security & Governance
Implement authentication/authorization (SSO preferred), secrets management, and least-privilege access.
Skills & Qualifications:
+ years building production software in .NET (C) / Java/ Python Web UI experience Strong API integration experience (REST/JSON; auth patterns such as OAuth where applicable) Solid SQL skills and data modeling (relational + optionally a document store) Experience designing reliable background jobs/workers (schedulers, queues, retries, DLQs) Automated testing (unit + integration) Practical experience with observability (structured logging, metrics, tracing)
If you meet the above qualifications, please submit your resume. Please note that while we appreciate all applications, only those being considered will be contacted.