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Mock interview: the offline-first POS platform at Tillsy

Name: Mock interview: the offline-first POS platform at Tillsy
Uploaded: 2026-10-27T06:28:05.000Z
Duration: 45 min 29 s
Channel: Himanshu Kukreja
Description: A recorded staff-level final loop with Dr. Meera Iyer at Tillsy: billing that never needs the cloud, the reconnect storm, an idempotent versioned sync protocol, conflict rules without device clocks, regions and cells, a dedicated-cell deal, no-bill-lost guarantees, GDPR erasure against tax retention, a Diwali incident and the biggest risk in the design.

A recorded staff-level final loop with Dr. Meera Iyer at Tillsy: billing that never needs the cloud, the reconnect storm, an idempotent versioned sync protocol, conflict rules without device clocks, regions and cells, a dedicated-cell deal, no-bill-lost guarantees, GDPR erasure against tax retention, a Diwali incident and the biggest risk in the design.

Try this mock interview yourself: Tillsy · Offline-first POS platform (final loop)

01 · The call

DMDr. Meera IyerVP Engineering, Platform

RMRohan MehtaCandidate

Tillsy · Staff Engineer, Core Platform · Final loop.

Dr. Meera Iyer: Hello, and congratulations on reaching the final round.

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