Junaid AtiqueStaff Backend Engineer

Case studies

Proof for backend architecture, migration, and platform ownership.

Rush

Shopify SaaS platform modernization

Helped evolve a Shopify post-purchase SaaS platform from monolith pressure toward a domain-driven service platform.

  • - 1,500+ Shopify stores
  • - 2M+ monthly unique customers
  • - 400GB+ monthly outgoing API traffic
  • - 200+ shipments per minute
  • - 60% AWS monthly cost reduction

NextRep

AI-native B2B SaaS architecture

Designed modular MVP-to-scale architecture with Next.js, NestJS, MongoDB, Clerk, tenant-aware identity, and enrichment workflows.

  • - Modular monorepo architecture
  • - Tenant-aware identity
  • - Enrichment workflow boundaries

Right Hand

Engineering operating model and platform direction

Created technology direction, reorganized engineering into domain-aligned teams, and replaced a paid LMS path with a self-hosted alternative.

  • - Three domain-aligned teams
  • - Accelerate-style delivery metrics
  • - $50K+ annual LMS saving