Multi-store Shopify back-of-house: bulk-operation product sync at 10k scale, wholesale tagging, R2-cached invoice generation, and security-tested edge deploys.
Shopify rate limits get punishing fast at 10k+ products. Multi-store sync had to survive partial failures, the invoice pipeline had to render fast at the edge, and the test suite had to prove it before each release — across performance, security and integration.
Shopify GraphQL bulk operations with checkpoint-based resumption, Cloudflare R2 caching for high-volume product reads, Cloudflare Workers for edge invoice rendering, and a tiered test suite — phase1, phase2, 10k-performance, security, integration — wired into CI.
Bulk-op framework that handles 10k+ products with checkpoint resumption. Multi-store dashboard for token verification, product sync, metaobject setup, and wholesale tagging. PDF invoice rendering on Workers with R2 cache and Supabase webhook reconciliation.
FastAPI + Flutter platform for Qur'an memorisation. Audio-to-text verification across three riwāyāt with per-word Tajwīd feedback and adaptive practice plans.
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