# Model Developer

**Company:** [hyperexponential](https://hotfix.jobs/companies/hyperexponential)
**Location:** London, United Kingdom
**Role:** ML Engineering
**Skills:** Python, Predictive Modelling, Advanced Analytics, Data Modelling, Code Review, Software Testing, Actuarial Modelling, Model Development
**Posted:** 2026-03-12

> 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.

## Job Description

## 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.

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