Ravelin Technology

Junior Data Scientist – Investigations

Ravelin Technology

full-time

Posted on:

Location Type: Hybrid

Location: London • United Kingdom

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Job Level

Junior

Tech Stack

CloudPythonSQL

About the role

  • Work directly with clients to provide fraud analytics and ML model insights
  • Analyse datasets with millions of rows to identify fraud patterns, trends and emerging threats to improve client performance
  • Discuss specific fraud problems with clients, in order to deeply understand how they manifest and to propose effective and elegant solutions
  • Prepare reports and present findings of analysis to clients when required
  • Identify new model features and improve model performance
  • Optimise the performance of our graph networks using network analysis
  • Get hands on experience with our cloud infrastructure and make the most of the available tools for enhancing our clients’ data and performance
  • Build internal tools in Python for optimising and improving our analytical capabilities

Requirements

  • 1 years' experience or training as a data analyst, intelligence analyst or data scientist
  • Strong critical thinking skills, intuitively curious and able to diagnose data issues
  • Strong communication and presentation skills
  • Diligence, attention to detail, ability to prioritise and follow through on tasks
  • Experience with SQL - ability to run complex queries to answer your own questions
  • Experience with Python for data analysis
  • Knowledge of supervised and unsupervised ML techniques
  • Desirable: some knowledge, understanding or experience of network analysis
  • Desirable: hands-on experience with DBT
Benefits
  • Flexible Working Hours & Remote-First Environment — Work when and where you’re most productive, with flexibility and support.
  • Comprehensive BUPA Health Insurance — Stay covered with top-tier medical care for your peace of mind.
  • £1,000 Annual Wellness and Learning Budget — Prioritise your health, well-being and learning needs with funds for fitness, mental health, and more.
  • Monthly Wellbeing and Learning Day — Take every last Friday of the month off to recharge or learn something new, up to you.
  • 25 Days Holiday + Bank Holidays + 1 Extra Cultural Day — Enjoy generous time off to rest, travel, or celebrate what matters to you.
  • Mental Health Support via Spill — Access professional mental health services when you need them.
  • Aviva Pension Scheme — Plan for the future with our pension program.
  • Ravelin Gives Back — Join monthly charitable donations and volunteer opportunities to make a positive impact.
  • Fortnightly Randomised Team Lunches — Connect with teammates from across the company over in person or remote lunches every other week on us!
  • Cycle-to-Work Scheme — Save on commuting costs while staying active.
  • BorrowMyDoggy Access — Love dogs? Spend time with a furry friend through this unique perk.
  • Weekly Board Game Nights & Social Budget — Unwind with weekly board games or plan your own socials, supported by a company budget.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
data analysisSQLPythonmachine learningsupervised learningunsupervised learningnetwork analysisDBTfraud analyticsdata visualization
Soft Skills
critical thinkingcommunicationpresentationattention to detaildiligenceprioritizationproblem-solvingcuriositycollaborationclient engagement