DESCRIPTION:

Lead the end-to-end fraud defense for a financial payment product in Mexico while directly shaping the balance between loss containment, customer experience, and approval rates. If you thrive on making high-stakes decisions with imperfect data and turning fraud signals into actionable rules, this is your opportunity to build and scale a fraud prevention function from the ground up.
As the Fraud Prevention Head, you will design and execute the fraud prevention strategy across three critical stages: account onboarding, transaction monitoring, and post-transaction behavior analysis.
To succeed, you must demonstrate a disciplined, evidence-based approach to rule design-combined with the sound judgment needed to operate under pressure and make critical decisions when information is incomplete. Success in this role is measured by fraud loss, detection and false positive rates and First Payment Default rate attributed to fraud.

Key job responsibilities
You will manage the full ecosystem-including identity verification, biometrics, and document validation-while building and refining fraud rules and models grounded in evidence and data. You will own the loss taxonomy and lead the attribution process between fraud and financial risk in close partnership with the financial Risk team, ensuring clear accountability and precise measurement.

Your scope extends beyond external threats: you will lead the detection of internal fraud in coordination with business partners and the Payment Risk department and manage the disputes to ensure compliance with onboarding rules. You will serve as the primary liaison for incident reporting with Ops, AML, Legal, and Information Security teams, ensuring swift and coordinated responses.

A day in the life
You will monitor and tune the fraud prevention framework. This includes overseeing fraud alerts, following transaction anomaly dashboards, reviewing false positive rates to ensure legitimate customers are not being unnecessarily blocked, assessing detection rate trends against fraud loss targets and tracking First Payment Default cases attributed to fraud. You will analyze data to assess whether newly detected patterns warrant rule adjustments, model recalibrations, or escalation to the identity and biometrics vendors. You will join working sessions with Ops, AML, Legal, and BRP to coordinate active incident investigations, share intelligence on suspicious activity.

About the team
Inclusive team culture
At Amazon we embrace our differences and we are committed to furthering our culture of inclusion. Amazon's culture of inclusion is reinforced within our 14 Leadership Principles, which remind team members to seek diverse perspectives, learn and be curious, and earn trust.

Work Life Balance
We offer flexibility in working hours and encourage you to find your own balance between your work and personal lives.

Mentorship & Career Growth
Our team is dedicated to supporting new members. We have a broad mix of experience levels and tenures, and we're building an environment that celebrates knowledge sharing and mentorship.

BASIC QUALIFICATIONS:

- Bachelor's degree or equivalent
- Experience working across functional teams and senior stakeholders
- 5+ years of fraud identification and detection, investigation and analysis for root causing and providing suitable preventive mechanisms, or 5+ years of security service, loss prevention, asset protection, investigations, or law enforcement experience
- Experience in building financial and operational reports/data sets that inform business decision-making, or experience using financial models, KPIs, and data analysis to support business decisions
- Speak, write, and read fluently in English, and have the ability to take direction in English

PREFERRED QUALIFICATIONS:

- Experience in influencing senior leadership through data driven insights
- Experience in SQL Server/MySQL, or experience in Postgres
- Knowledge of identity and validation vendors in Mexico, blacklists, device signals, and geolocation

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you're applying in isn't listed, please contact your Recruiting Partner.