Preparing the next view without exposing private workflow data.
Design a system. Diagnose tail latency. Ship a migration. Recover a failed rollout. Pick a focused ticket or follow a project through its delivery phases.
1380 tickets · 138 projects · 26 engineering fields · Four difficulty levels
Field counts and the engineering field filter use each project's primary field. Estimated ticket labels can span multiple fields.
60 matching tickets · Page 1 of 5
The vendor sent quantity as an empty string and the importer stored zero, hiding a data problem. Validate a versioned stock response before mapping it into internal records.
Estimated field mix
Pattern topics
Two tenants both sell SKU CABLE-2M, and a mapping lookup updates the wrong stock row. Scope vendor mappings by tenant, connector, warehouse, and vendor item identity.
Estimated field mix
The importer crashes on page four and restarts from page one, occasionally skipping records because the cursor is saved before page writes finish. Couple the checkpoint to the page commit.
Estimated field mix
Stock revision 42 sets quantity to 7, then delayed revision 41 resets it to 12. Compare vendor revisions atomically and record the stale delivery without changing current stock.
Estimated field mix
Five scheduled jobs refresh the same connector after a restart and exceed the vendor limit. Add one active refresh identity per connector and bounded Retry-After handling.
Estimated field mix
A transient missing page made hundreds of products look deleted. Apply absence-based tombstones only after a complete authoritative snapshot, while preserving explicit deletion events.
Estimated field mix
Operations sees different stock in the vendor portal and local app but has no item-level comparison. Add a read-only report against a completed synthetic snapshot.
Estimated field mix
An operator reviews a drift report, but a fresh vendor event arrives before Apply. Bind corrections to the reviewed before-state so approval cannot overwrite a newer update.
Estimated field mix
A connector has not completed a refresh for six hours, yet its status is green because the last HTTP request succeeded. Define freshness from completed ingestion checkpoints.
Estimated field mix
The vendor replaces quantity with availableQuantity in its next API version. Demonstrate that the connector fails visibly, can resume with a new adapter, and preserves the old run history.
Estimated field mix
A booking form submits 01:30 on a daylight-saving fallback day without an offset. Store an instant plus display zone and explicitly handle ambiguous or nonexistent local times.
Estimated field mix
Two overlapping provider events produce a false free gap between them. Normalize busy intervals and apply the agreed booking duration and buffer.
Estimated field mix
6 matching projects · Page 1 of 1
Build a vendor inventory connector with stable identity mapping, resumable ingestion, reconciliation, and tenant-safe operations.
Build a calendar booking workflow with time-zone rules, conflict handling, idempotent provider calls, and safe reconnect behavior.
Reconcile local order state with a simulated provider under duplicate and delayed delivery.
Keep customer records consistent across a local application and a simulated CRM.
Reconcile availability and event changes across a scheduling app and a local calendar provider.
Support two incompatible notification providers while keeping domain decisions, instrumentation, and overload behavior explicit.
Practice scoped changes, keep a portable implementation and verification record, and learn to explain operational tradeoffs. Choose a ticket whose prerequisites you can provide.
Use realistic work to structure onboarding, internal practice, and conversations about engineering decisions. Each project names the delivery benefit. Agree scope and compensation before requesting company-specific work.
CSV contains one row per ticket. Map fields and issue types in your tracker; project grouping and dependency keys are descriptive. JSON preserves the complete project structure. These downloads do not synchronize with Jira.