Data Scientist - iwocaPay Risk Squad

iwoca
London
Workplace: HybridFull timeGBP 60,000 - 80,000 annuallyFunction: Data Science & Machine LearningSkills: ["Communication","Independent thinking","Evidence-based decisions","Pragmatism"]

Own credit modelling end to end for the iwocaPay Risk Squad, co-designing and iterating supervised machine learning models that power automated credit decisioning and fraud prevention. Work with tabular and time-series data to improve risk predictions across segments, calibrate and validate model performance, and build supporting data pipelines. You’ll collaborate closely with another data scientist in a small team, with real commercial impact on funding approvals and terms.

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FursaFursa
iwoca
iwoca
1 day ago

Data Scientist - iwocaPay Risk Squad

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Source: Company careers pageValidated by: Fursa AI
Last checked: 6 hours agoStatus: Live

Job Summary

Own credit modelling end to end for the iwocaPay Risk Squad, co-designing and iterating supervised machine learning models that power automated credit decisioning and fraud prevention. Work with tabular and time-series data to improve risk predictions across segments, calibrate and validate model performance, and build supporting data pipelines. You’ll collaborate closely with another data scientist in a small team, with real commercial impact on funding approvals and terms.
Location: London
Workplace: Hybrid
Employment Type: Full time
Job Function: Data Science & Machine Learning

Key Responsibilities

  • •Co-own the full credit modelling stack with another data scientist, collaborating on model design and prioritisation.
  • •Build and iterate production credit models that determine who iwocaPay can safely fund and on what terms.
  • •Improve model performance across segments and explore more advanced approaches, including building models from scratch for new products.
  • •Handle fraud prevention decisioning models and contribute to automated risk modelling processes used in every lending decision.
  • •Own models end to end by supporting deployment and monitoring, including pipelines and ongoing performance tracking.

Pay and Benefits

Salary: GBP 60,000 - 80,000 annually
Perks:Health InsuranceGym MembershipPrivate GpEmployee EquityLearning BudgetParental LeaveSabbatical

Key Requirements

  • •Expertise in supervised machine learning on tabular data, building and iterating production models end to end (exploration through deployment and monitoring).
  • •Strong statistical foundations in probability, uncertainty quantification, model calibration, and understanding model failure modes.
  • •Ability to work independently in a messy, early-stage environment—scoping, building infrastructure, and shipping models without well-defined tasks.
  • •Data engineering capability to build pipelines and manage datasets alongside modelling work.
  • •Clear communication to adapt technical detail for non-technical colleagues across product, risk, and leadership.
Skills:CommunicationIndependent thinkingEvidence-based decisionsPragmatism
Tech Stack:PythonSupervised machine learningTabular dataTime series dataModel calibrationGradient boostingNeural networksTransfer learningDomain adaptation

Company Brief

iwoca
iwoca provides fast, tech-driven credit and working capital solutions for small and medium-sized enterprises in the UK and Germany, using automated underwriting and partner integrations to deliver loans, invoice finance and payment products.
Industry: Lending
Company Size: Large (251 to 1,000 employees)
Revenue: USD 100M to 250M
Growth: Scaleup
Headquarters: London, United Kingdom
Founded: 2011
Glassdoor
Glassdoor: 4.6
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