Member of Technical Staff - Head of Fraud

The role

You will engineer a fraud detection and mitigation system that maximizes precision. You will own detection, mitigation, and the operating function for a lending business.

What you will do

• Produce an independent fraud risk assessment within three weeks.
• Launch a test to reach challenge rate and precision goals within five weeks.
• Launch an experiment to reduce first payment default rate within one month if background is in financial services.
• Build a system that generates repeatable intelligence from manual fraud case review feedback loops within three months.
• Reduce the risk of unmitigated programmatic fraud attacks to negligible within six months.
• Own detection, mitigation, and the operating function end to end.
• Build the fraud ops function as an agent-operated system.

Required qualifications

• At least two years managing fraud in tech or fintech in a fraud analytics or fraud strategy seat with ownership of a fraud area and rules or models deployed to production.
• Advanced SQL comprehension.
• Work with AI agents in a meaningful capacity today.
• Professional English.
• Can commit to 80% in office in New York City or Mexico City.

Nice to have

• Built self-improving feedback loops for agentic systems.
• Financial services background, especially exposure to first-party and acquisition fraud.
• Have run point during live fraud incidents.
• Working Spanish.

Benefits

• Competitive equity
• 100% medical, dental & vision insurance coverage for you (50% for dependents)
• 401(k) for US-based employees
• Unlimited PTO
• Extended maternity and paternity leave
• Relocation support

Before you apply

• Case Study
• On-site Interview
• Reference & Background Check

About the company

Nelo is a fintech in Mexico reimagining credit to expand consumer buying power. The company is profitable and runs a lean, technical team of 60 employees.