InterQuest Group

Haskell/PureScript Developer

Company
Location
England, United Kingdom
Posted At
8/14/2025
Description

What You'll Do

  • Design and implement high-assurance systems in Haskell.
  • Build and maintain web UIs in PureScript, focused on reliability and performance.
  • Develop systems for odds calculation, risk modeling, and bet settlement.
  • Collaborate with product, trading, and compliance teams to meet business requirements.
  • Help evolve our functional programming practices and tooling.
  • Write tests, documentation, and clear, maintainable code.


Tech Stack

  • Back-end: Haskell (Servant, Persistent, STM, Conduit)
  • Front-end: PureScript (Halogen or React Basic), TypeScript (light use)
  • Infrastructure: PostgreSQL, Redis, Docker, AWS
  • Tooling: Nix, Spago, GitHub Actions, Grafana


What We’re Looking For

  • Proficiency in Haskell, or another typed FP language with willingness to learn.
  • Experience building production systems (ideally with financial logic or real-time data).
  • Familiarity with PureScript or strong front-end FP skills.
  • Comfort with functional programming concepts: monads, functors, ADTs, etc.
  • Attention to detail and a drive to build robust, high-quality software.
  • Bonus: Experience in fintech, betting, gaming, or regulated industries.

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