Senior Fullstack Developer (NestJS/ React.js)

Symphony Solutions

Full time Computer Occupations
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Location
Ukraine, Ukraine, Ukraine
Posted
June 03, 2026

Job Description

The company is a provider-side iGaming observability and revenue intelligence platform that sits between game providers and their operator distribution network. The platform ingests round-event data in real time, independently computes Gross Gaming Revenue (GGR), and continuously reconciles operator-reported settlements to detect revenue leakage β€” a problem that costs game providers millions annually in undetected FX errors, revenue-share miscalculations, and bonus misclassifications. 

Requirements

  • 5+ years of total software development experience.
  • 3+ years of production experience with React, including complex state management (Redux / Redux Toolkit, React Query, Zustand or similar).
  • 3+ years of Node.js / TypeScript backend experience, ideally with NestJS in a production API or BFF layer.
  • Strong proficiency in TypeScript across both frontend and backend.
  • Hands-on experience with Prisma ORM (or comparable) and Po...