Senior Decision Scientist, Model Validation

SENIOR DECISION SCIENTIST, MODEL VALIDATION London (Hybrid) | Salary up to £80,000 Join a high-growth fintech business where data-driven decision making sits at the heart of commercial success. This is an opportunity to take ownership of model validation, credit decisioning and risk analytics in a fast-paced environment, helping shape lending strategies across multiple products and markets. The Company They are a rapidly scaling financial technology organisation delivering innovative lending solutions.

With strong backing, ambitious growth plans and an expanding international presence, they continue to invest heavily in analytics, risk and data capabilities. Their culture is collaborative, commercially focused and driven by evidence-based decision making.

The Role You will play a key role in strengthening model oversight and credit decisioning processes, working closely with Data Science, Risk, Engineering and Commercial teams.

Responsibilities include:

Leading independent validation of credit risk and decisioning models. Assessing model performance, calibration, stability and suitability for business use. Building monitoring frameworks for model performance, data quality and decision outcomes. Identifying, investigating and resolving model, data and implementation issues. Presenting insights and recommendations to both technical and senior business stakeholders. Your Skills & Experience Strong experience in decision science, credit risk analytics, model validation or a similar quantitative discipline.

Advanced SQL and Python skills for analysis, validation and monitoring. Strong statistical knowledge with the ability to evaluate and challenge predictive models. Experience working across the full model lifecycle, including validation, calibration and monitoring. Ability to communicate complex technical concepts to non-technical stakeholders.

Experience with in lending, financial services, commercial credit or related sectors is advantageous. What They Offer Competitive base salary plus performance-related bonus. Comprehensive benefits package including private medical cover and enhanced family leave. Flexible hybrid working model. Clear career progression within a growing analytics and risk function. Exposure to international markets, complex data challenges and senior business stakeholders. Collaborative, high-performing and data-led culture.

How to Apply

If you are an experienced Decision Scientist with strong model validation and credit risk expertise, apply today!