Software Engineer (Fraud)

Félix

5d•Remote

About The Position

We are seeking a Software Engineer with deep expertise in Fraud and Risk Management systems, specifically within Fintech environments. As a key engineer in our Risk & Fraud domain, you will design and build scalable, resilient fraud detection and prevention platforms, lead cross-functional initiatives, and contribute to our long-term architecture and product strategy.

Requirements

5+ years of professional software engineering experience, with at least 2+ years working on fraud, risk, or financial crime prevention platforms.
Proficiency in backend languages such as Python, Kotlin, Java, Golang, or similar.
Experience building or working with platform systems, event-driven architectures and real-time processing systems (Kafka, Pub/Sub, Flink, or equivalent).
Deep understanding of fraud detection concepts, including:
Risk scoring and rule engines
Fraud signals and feature engineering
Velocity limits, anomaly detection
Transaction monitoring
False positive/negative tuning
Strong knowledge of databases, caching, and system performance optimization.
Hands-on experience with observability and alerting in high-sensitivity systems.

Nice To Haves

Exposure to regulatory concerns around KYC, AML, PSD2, 3DSecure, CCPA, GDPR, LGPD.
Familiarity with integrating third-party providers like Seon, Sardine, Sift, Feedzai, or Socure.
These are the applicable requisites, although equivalent competencies in any of the above will also be considered.

Responsibilities

Architect and deploy high-throughput, low-latency fraud detection systems that protect our customers and capital in real-time
Take ownership of the fraud engine lifecycle—from initial data modeling and rule-setting to production monitoring and incident response.
Work cross-functionally with Product, Compliance, Data Science, and Ops to translate complex risk patterns into automated technical solutions.
Drive the integration of third-party data providers and internal services into a unified fraud decisioning platform
Collaborate with platform, infrastructure, and security teams to uphold compliance, scalability, and deployment best practices
Mentor junior engineers and uphold high standards for code quality, resilience, and system security as we scale our fintech infrastructure.

Benefits

Competitive salary
Initial stock options grant
Annual performance bonus
Health, dental, and vision plans
401(k)
Remote work environment, although we have offices in Miami and México City and would love to work in a hybrid model if you are up to it.
Continuous learning opportunities
Unlimited PTO
Paid parental leave
Empowering opportunities for growth in a dynamic entrepreneurial environment