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Paystone

We make merchant life easier. Payment Processing | Gift Card Programs | Customer Loyalty Programs

Data Scientist

Data ScientistData ScientistFull TimeRemoteSeniorTeam 51-200Since 2013H1B No SponsorCompany SiteLinkedIn

Location

United Kingdom

Posted

7 days ago

Salary

0

Seniority

Senior

Bachelor Degree5 yrs expEnglishPythonSQL

Job Description

Data Scientist

Paystone

• Partner with Product and BI to turn business goals into well-scoped ML problems with clear success criteria and guardrails. • Build and productionize models for segmentation, churn, LTV, and recommendations. • Design evaluation frameworks including offline benchmarks and online feedback loops to ensure models are measured, not assumed. • Collaborate with Engineering on production design considerations like latency, payload structure, fallbacks, and failure modes. • Monitor model performance over time, detect drift, and own retraining and iteration cycles. • Use product telemetry and user feedback to drive continuous model and feature improvements. • Work alongside AI coding agents to accelerate development (pipelines, tests, refactoring, exploration) while maintaining human oversight. • Communicate results, trade-offs, and recommendations clearly across technical and non-technical teams.

Job Requirements

  • 5+ years as a Data Scientist, Applied Scientist, or ML Engineer.
  • Strong SQL and Python skills with production ML experience.
  • Experience with churn, segmentation, LTV, or recommender systems.
  • Comfortable working with production systems and APIs.
  • Familiar with AI coding tools and agentic workflows.
  • Strong communicator who can simplify technical concepts.
  • Nice to Have: Experience in loyalty, CRM, or retail analytics; LLM or AI agent experience; Building internal tools or ML infrastructure; French/English bilingual.

Benefits

  • Flexibility: People-first approach focused on outcomes, not location or hours.
  • Collaboration: Partner closely with Product, Engineering, and BI in a fast-moving, supportive environment.

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