Senior Data Scientist (Fintech)

TL;DR

Senior Data Scientist (Fintech): Building and deploying predictive models to strengthen fraud defenses within the Merchant Operations Group, with an accent on end-to-end ML solution delivery, feature engineering, and production-grade deployment on GCP. Focus on reducing false positives, automating controls, and scaling ML products while supporting a seamless customer experience.

Location: Hybrid in London, UK. In-office days are determined by your team. A Work Away Scheme allows working from anywhere for up to 90 days in any 12-month period.

Salary: £99,200–£148,800

Company

hirify.global is a global bank payment company that processes over US$130bn+ of payments annually across 30+ countries, using AI-powered solutions to improve payment success and reduce fraud.

What you will do

• Contribute to the end-to-end delivery of models at scale, from initial discovery and feature engineering to production, A/B testing, and continuous monitoring.
• Collaborate with product, engineering, and data science peers to develop real-time, mission-critical fraud prevention solutions.
• Raise the team’s collective bar through hands-on technical leadership and knowledge sharing.
• Help bring to life the latest developments in ML and payer fraud prevention to drive innovation.

Requirements

• You hold a degree (or PhD) in a STEM discipline or have equivalent commercial experience.
• You have a track record of deploying predictive models and data products in production with quantifiable impact.
• You can translate complex ML concepts into practical product solutions and communicate them clearly to non-technical peers.
• You are experienced with writing and maintaining production-level code, supporting the team with code reviews.
• You are comfortable contributing across the full model lifecycle, from deep-dive analysis and feature engineering to prototyping, validation, and live A/B testing.

Nice to have

• Experience in Fintech, Fraud Prevention, or Payments is a big plus.

Culture & Benefits

• Dedicated support and medical cover for your wellbeing.
• Work from anywhere for up to 90 days in any 12-month period with the Work Away Scheme.
• Our hybrid model offers flexibility, with in-office days determined by your team.
• All permanently employed GeeCees receive equity to share in company success.
• Tailored parental leave to support your life's adventures.
• Annual holiday leave based on your location, supplemented by 3 volunteer days and 4 wellness days.