Operations tooling and engineering quality

The tools that let a small operations team run a logistics business, and the CI and quality work around the code.

Operations tooling

A Slack bot for the operations team: bulk cancel, 3PL mapping updates, re-triggering order creation, AWB lookup, report downloads and invoice upload, with once-per-request alerting and concurrent force-cancel.
Webhook audit trail as HTTP middleware: request and response bodies, headers, duration, provider auto-detection, request-ID correlation and an AWS Batch retention job. About 2.8 million webhook logs captured since January 2026.
Courier invoice reconciliation. Parsers for each courier’s spreadsheet format, approval and mismatch adjustment, a read/adjust API, and an admin dashboard for Finance that syncs approved invoices to the ledger. It replaced hand reconciliation of tens of thousands of line items.
Location tooling. Postal-code checks, redzone and misroute handling, and area search.
Bulk multi-warehouse upload, with the original uploaded file archived to S3 so Operations can investigate merchant disputes.
Database-trigger audit log with before and after snapshots on the tables that drive pricing and courier behaviour, so “what changed and when” has an answer.

CI. Reusable composite actions for test coverage and lint, unified App Runner and AWS Batch deploy workflows with service auto-detection, change detection to skip no-op deploys, and Jira auto-transition on release.
Feature flags. Migrated from ConfigCat to go-feature-flag, and used kill-switch flags on every risky rollout (dual-write, journal entry, per-merchant overrides, ledger cut-over).
Observability. OpenTelemetry on every repository adapter, and the APM to OTel migration.
Performance. N+1 query elimination in courier lookups with batch processing.
Tests. Integration-test suites per courier, API-based integration tests, and three dedicated unit-test coverage pushes.
Reviews. 290 merged pull requests reviewed for colleagues.