Data Scientist - Partner Flow Team

We're looking for a Data Scientist to join the Partner Flow team. You’ll own experimentation and analytics for iwoca's partner channel – fintechs and platforms that embed iwoca lending in their own products. The analytical approach is still being built, and the scope to shape it is wide.

The team owns the customer journey from the moment someone starts an application on a partner platform through to a completed credit assessment. By making the application process as smooth as possible and collecting the data needed for a credit decision efficiently, the team maximises the number of partner-referred customers that receive an offer. The team works across the full application stack – from the APIs partners use to integrate iwoca, through to the experience customers see when they apply. The team is small and cross-functional, combining data science, engineering, design, and product.

Active projects include:

• Pre-qualification – testing how showing customers an offer before they apply affects conversion and long-term value.
• Credit card strategy – iwoca recently launched a credit card alongside its flexi-loan; the team is working out which product, or combination, to offer which customers.
• Funnel optimisation – identifying and reducing the biggest points of friction across the partner journey.

The role involves designing experiments, modelling customer behaviour, and analysing large data sets across the partner funnel, turning findings into product and strategy decisions. You'll influence how the analytical approach develops, not just what it produces. The work has direct commercial consequences – on partner platforms, iwoca competes for attention alongside other lenders, and what this team builds and tests affects which customers convert and on what terms. You'll work closely with commercial, strategy, and product colleagues across the business.

Key responsibilities include:

• Experimentation and causal inference – designing and analysing experiments where careful randomisation and interpretation are critical.
• Funnel and competitive strategy – analysing the full partner-referred customer journey, identifying where conversion breaks down and why.
• Commercial translation – being directly involved when decisions get made and coordinating with adjacent teams.
• AI and ways of working – using AI to accelerate and automate analytical work.

Essential requirements:

• Strong grounding in probability and statistics, with an understanding of Bayesian reasoning and experience applying hierarchical modelling or decision-making under uncertainty.
• Experience separating signal from noise in observational and experimental data.
• Ability to understand commercial context and translate data into actionable insights.
• Proficiency with data manipulation and modelling tools.
• Comfortable owning ambiguous problems end-to-end.
• Experience with and a passion for using AI to accelerate and automate analysis.
• Clear communication skills, adapting technical detail to different audiences.

Bonus requirements:

• Experience building or adapting statistical or ML models.
• Familiarity with stochastic modelling concepts.
• Experience with conversion funnel analysis or marketplace dynamics.
• Proficiency in Python.
• Curiosity about the partner lending market.

The salary is expected to be from £70,000 – £100,000 for this role. We routinely benchmark salaries against market rates and run quarterly performance and salary reviews.

At iwoca, the best idea wins. We model our culture on independent thinking, challenging untested logic, and evidence-based decisions. We prioritise learning and growth, and give people the autonomy to develop in the direction that makes them most effective.

We put a lot of effort into making iwoca a great place to work, with offices in London, Leeds, Berlin, and Frankfurt, and plenty of drinks and snacks. We offer flexible working hours, medical insurance, 25 days’ holiday per year, and various other benefits including a learning and development budget for everyone.