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Jawad Nisar
FinTech & BillingFinTech / HR-SaaS

Toptal

Worker discounts and multi-currency billing, end to end.

Role
Full-stack engineer at Igknight Tech — feature ownership from schema to UI

Overview

Built an end-to-end worker discounts system for a global talent marketplace, covering the data model, the service layer and the interface. Also delivered a multi-currency billing approval flow, where money moves across currencies and every state transition has to be auditable.

What I built

  1. Designed and shipped the worker discounts system end to end
  2. Built a multi-currency billing approval flow
  3. Typed React front end backed by a GraphQL API
  4. Rails service and data layer behind both features

Stack

  • React
  • TypeScript
  • Ruby on Rails
  • GraphQL

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