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Model Developer

The Model Developer owns end-to-end delivery of production-grade Python and predictive models, partnering with customer actuarial teams to solve complex modelling problems. The role also contributes to engineering standards, testing, code review, and mentoring junior developers.

About the job

Responsibilities

  • Own end-to-end model delivery on hx Renew, from scoping and build through testing, iteration, and customer delivery.
  • Build and maintain production-grade Python models using modern engineering and modelling practices.
  • Work directly with customer actuarial teams and internal stakeholders to solve complex, ambiguous modelling and coding problems.
  • Raise quality across the team through code review, testing, and contributions to best-practice model development guidance.
  • Support and mentor junior model developers through pairing, feedback, and day-to-day delivery support.
  • Improve model development standards, tooling, and ways of working.

Requirements

  • Production-grade Python development experience in complex or data-heavy environments.
  • Experience applying predictive modelling or advanced analytics in real-world settings.
  • Ownership of ambiguous problems, creating structure and driving them through to high-quality outcomes.
  • Experience working directly with non-technical stakeholders or customers and translating requirements into robust technical solutions.
  • Ability to operate proactively in a high-trust, high-accountability environment.

Nice to Have

  • Insurance or reinsurance experience.

Compensation and Benefits

  • Equity offered across all roles.
  • £5,000 training and conference budget.
  • 25 days of holiday plus 8 bank holidays.
  • Company pension scheme via Penfold.
  • Mental health support and therapy via Spectrum.life.
  • Individual wellbeing allowance via Juno.
  • Private healthcare insurance through AXA.
  • Income protection and life insurance.
  • Cycle to Work Scheme.
  • Top-spec equipment, including laptop, screens, and adjustable desks.
  • Remote and in-person hackathons, lunch and learns, socials, and game nights.
  • Team breakfasts and lunches, snacks, and drinks.

Skills

Python, Predictive Modelling, Advanced Analytics, Data Modelling, Code Review, Software Testing, Actuarial Modelling, Model Development

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