Fraud Manager(Credit Card)

About us

Lumen Cards is a new consumer lending business preparing to launch its first credit card to the UK consumer market in Q Our management team brings over 20 years of experience each in consumer finance, and we operate from two locations: London Kings Cross, and Leicester.

At Lumen, we approach consumer lending with a "do the right thing" mindset. Our goal is to provide credit that helps customers solve real-life problems.

We're committed to building a great place to work. We want every colleague to feel valued, empowered and impactful. We celebrate shared success, support one another through challenges and foster a culture where ideas are welcomed, and collaboration is second nature. When things go wrong, we don't point fingers, but we pull together to find a way forward.

Role Overview

You will be joining Lumen at an exciting time, as we prepare to launch
our first credit card
. We are looking for a Fraud Manager to lead our fraud prevention strategies from day one.

This is a key role where you will be the central point of expertise for all fraud-related matters, responsible for developing and managing both the new customer Acquisition fraud strategies as well as the in-life transaction management strategies. You'll design and implement agile,
data-driven fraud strategies
that protect both our customers and our business from financial crime.

In a new lending business, fraudsters move quickly, and your role will be critical in ensuring our defences are proactive, responsive, and resilient. You'll be responsible for developing
robust fraud controls
, responding to emerging threats, and collaborating across teams to
embed fraud thinking
into product, operations, and credit strategy.

This is a unique opportunity to help build a responsible lending business from its earliest stages, influence strategic decisions, and make a meaningful impact.

Key Responsibilities

Acquisition Fraud Strategy

• Own and continuously optimise the acquisition fraud detection strategy, including rule set management.
• Monitor daily performance, responding swiftly to fraud attacks and behavioural anomalies to minimise losses and exposure to financial crime.

Transaction Fraud Strategy

• Lead the management of the transaction authorisation system, balancing fraud prevention with a seamless customer experience.
• Implement agile processes and controls to adapt to the evolving fraud landscape.

Customer Management and In App Fraud Strategy

• Collaborate with internal operations and product teams to stay ahead of emerging fraud trends.
• Identify and implement enhancements to fraud tooling and strategy across the customer lifecycle.

Industry Collaboration

• Engage with third-party providers, industry bodies, and working groups to share insights and strengthen Lumen's fraud defences.

Cross-Functional support

• Support the broader credit team with analytics and strategy development.
• As part of a lean early-stage team, contribute to a wide range of credit and commercial initiatives beyond your core remit.

Skills & Experience

• Adept at translating fraud analytics into actionable strategy, with the ability to influence senior stakeholder
  s
  and balance risk mitigation with customer experience.
• Proven experience in fraud management
  and fraud analytics, ideally
  within consumer lending or credit card environments.
• Strong proficiency in SQL and data manipulation, with the ability to work independently with large, complex datasets.
• Experience with fraud detection platforms such as FeatureSpace, ThreatMetrix, or similar tools.
• Familiarity with UK financial crime regulations, industry standards, and best practices in fraud prevention.
• Comfortable working in a fast-paced, agile environment and contributing
  to cross-functional
  initiatives beyond core fraud responsibilities.

Personal Attributes

• Commercially minded and analytically driven — focused on optimising fraud outcomes while maintaining a seamless customer journey.
• Proactive and resourceful, with a strong bias for action and a solutions-oriented mindset.
• Detail-focused and methodical, with a high sense of ownership and accountability.
• Collaborative and adaptable, able to work effectively across product, operations, credit, and tech teams.
• Curious and growth-oriented, always seeking to improve processes, learn from data, and stay ahead of emerging fraud trends