Senior Python Quant Developer

hays-gcj-v4-pd-online • London, England • Posted June 13, 2026

About the Role

My client is a London-based financial-servicespany who are actively seeking a Senior Python Quant Developer to join on an initial 12-month contract basis.

What you'll need to succeed :

  • Extensive hands-on Python Development experience building REST APIs with FastAPI or similar.
  • Strong quantitative background – must have.
  • Strong experience with Pandas, NumPy, and/or SciPy.
  • Good experience with time series or market data models.

    • What you'll get in return :

  • Initial 12-month contract with extensions.
  • London-based hybrid working.
  • Up to £900pd umbrella.