Every entry below is a crawlable link to a unique public task page. This directory complements the interactive filters and keeps the complete catalog connected through standard pagination.
Tech Screening · Medium · 3 min
The UI shows a generic error for a partial backend failure. How would you preserve useful semantics without leaking internals?
View taskTech Screening · Hard · 3 min
A user reports a slow checkout. How would you connect browser timing, API traces, logs, and database work?
View taskTech Screening · Easy · 3 min
Only one frontend cohort sees failures, while aggregate backend metrics are healthy. How would you narrow the path?
View taskTech Screening · Medium · 3 min
How would you separate server state, local UI state, and URL state in a data-heavy application?
View taskTech Screening · Hard · 3 min
A cached list and edited detail view disagree after mutation. Which invalidation and reconciliation strategy would you use?
View taskTech Screening · Easy · 3 min
When does a backend-for-frontend simplify product delivery, and when does it duplicate domain logic?
View taskTech Screening · Medium · 3 min
A mobile and web client need different payloads. How would you choose between BFF, field selection, and shared APIs?
View taskTech Screening · Hard · 3 min
Design a large file-upload flow with progress, retry, validation, authorization, and asynchronous processing.
View taskTech Screening · Easy · 3 min
An upload succeeds in storage but the application record is missing. How would you reconcile and clean up partial state?
View taskTech Screening · Medium · 3 min
How would you design a search and pagination contract that remains stable while records are inserted?
View taskTech Screening · Hard · 3 min
The UI duplicates items when loading the next page. Which cursor, sort, and cache assumptions would you inspect?
View taskTech Screening · Easy · 3 min
How would you roll out a feature that requires coordinated UI, API, and database behavior?
View taskTech Screening · Medium · 3 min
The frontend flag is off, but the backend still writes the new schema. Which flag ownership and compatibility rules are missing?
View taskTech Screening · Hard · 3 min
How would you migrate a database field that is read and written by several deployed client versions?
View taskTech Screening · Easy · 3 min
A backfill changes API output while the old UI remains live. Which expand-and-contract steps would you use?
View taskTech Screening · Medium · 3 min
How should frontend and backend validation differ while still producing a coherent form experience?
View taskTech Screening · Hard · 3 min
A server rejects a cross-field rule the client cannot reproduce. How would the API identify the correct UI fields?
View taskTech Screening · Easy · 3 min
A multi-step backend transaction times out after the user clicks submit. How should the UI learn the final outcome?
View taskTech Screening · Medium · 3 min
A client retries payment creation after losing the response. Which idempotency and status contracts prevent duplication?
View taskTech Screening · Hard · 3 min
Design the UI and API contract for a report that may take several minutes to generate.
View taskTech Screening · Easy · 3 min
A background job fails after the UI reports acceptance. How would users retry and support diagnose the failure?
View taskTech Screening · Medium · 3 min
How would you coordinate browser, CDN, API, and database caches for data that changes frequently?
View taskTech Screening · Hard · 3 min
An API fix is deployed, but some users keep seeing the old response. Which cache keys and invalidation layers would you inspect?
View taskTech Screening · Easy · 3 min
How would you manage runtime configuration so frontend builds and backend services use the correct environment values?
View taskTech Screening · Medium · 3 min
A production frontend points to staging after deployment. Which build-time and runtime boundaries would you redesign?
View taskTech Screening · Hard · 3 min
How would you deploy UI and API changes independently while preserving compatibility and rollback?
View taskTech Screening · Easy · 3 min
The new UI reaches an old API instance during a rolling deployment. Which contract assumption failed?
View taskTech Screening · Medium · 3 min
Which request context should travel from browser to gateway, services, and queues for reliable diagnosis?
View taskTech Screening · Hard · 3 min
A queued operation loses the original trace and user context. How would you preserve correlation without leaking sensitive data?
View taskTech Screening · Easy · 3 min
A downstream dependency is slow. How should API timeouts, retries, and frontend recovery work together?
View taskTech Screening · Medium · 3 min
The frontend retries while the gateway and service also retry. How would you stop amplification?
View taskTech Screening · Hard · 3 min
Which signals would you use to promote a cross-stack canary beyond infrastructure health?
View taskTech Screening · Easy · 3 min
Errors stay flat after release, but checkout completion falls. How would you connect product and technical rollback gates?
View taskTech Screening · Medium · 3 min
A form succeeds in one browser but creates no server record in another. Walk through your evidence-first debugging path.
View taskTech Screening · Hard · 3 min
How would you distinguish a UI-state bug, network failure, API rejection, and committed-but-lost response?
View taskTech Screening · Easy · 3 min
A user logs out in one tab but remains authorized in another. How would browser, gateway, and service session state converge?
View taskTech Screening · Medium · 3 min
Design session rotation after privilege elevation without breaking active requests or leaving old credentials usable.
View taskTech Screening · Hard · 3 min
A profile update succeeds, but different screens and APIs show different values. How would you map every cache and ownership boundary?
View taskTech Screening · Easy · 3 min
How would you invalidate browser, CDN, gateway, service, and database-derived caches without relying on one fragile global purge?
View taskTech Screening · Medium · 3 min
An optimistic UI update succeeds locally but the server later rejects it. How should state, messaging, and retry behavior recover?
View taskTech Screening · Hard · 3 min
Two devices edit the same record while offline. Which conflict policy would you expose across API and UI?
View taskTech Screening · Easy · 3 min
How would you remove an API field used by unknown clients while keeping frontend and backend deployments independent?
View taskTech Screening · Easy · 3 min
A Linux host is slow, but CPU usage looks normal. Which resources and kernel signals would you inspect next?
View taskTech Screening · Medium · 3 min
Load average spikes while request traffic is flat. How would you distinguish CPU pressure from blocked I/O?
View taskTech Screening · Hard · 3 min
A service cannot accept new connections although the process is running. How would you investigate file descriptors and sockets?
View taskTech Screening · Easy · 3 min
Connections accumulate in TIMEWAIT during a traffic spike. What would you measure before changing kernel settings?
View taskTech Screening · Medium · 3 min
Requests intermittently fail with name-resolution errors. How would you isolate client, resolver, cache, and authoritative DNS behavior?
View taskTech Screening · Hard · 3 min
A DNS change appears correct, but only one region fails. Which caches and propagation paths would you verify?
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