Senior Software Engineer (Fraud team)

Félix; Norte; A distancia; COP 387.897.000 - 543.057.000; Jornada completa

Descripción de la vacante

A fintech company is seeking a Senior Software Engineer specializing in Fraud and Risk Management. This role involves designing scalable fraud detection systems and collaborating cross-functionally to maintain platform integrity. Candidates should have over 8 years of engineering experience, strong backend skills, and a good understanding of fraud detection principles. The position offers a competitive salary, stock options, and flexibility for remote or hybrid work arrangements.

Servicios

Competitive salary

Initial stock options grant

Annual performance bonus

Health, dental, and vision plans

Remote work options

Unlimited PTO

Paid parental leave

Formación

• 8+ years of professional software engineering experience, minimum 3 years in fraud/risk platforms.
• Proficiency in backend languages like Python, Kotlin, Java, or Golang.
• Experience with event-driven architectures and real-time processing.

Responsabilidades

• Design and build scalable fraud detection platforms.
• Implement real-time fraud monitoring systems.
• Collaborate with product and compliance teams.

Conocimientos

Fraud detection concepts

Backend programming

Real-time processing systems

Systems performance optimization

Observability and alerting

Proficiency in English

Descripción del empleo

About Us

At Félix, we're building the financial ecosystem for Latin immigrants in the U.S., starting with a revolution in remittances. Our core product is an AI-powered chatbot built on WhatsApp, allowing our users to send money home as easily as sending a text message. We leverage cutting-edge technology like AI, blockchain, and stablecoins to make cross-border payments faster, more affordable, and more accessible than ever before.

We are a hyper-growth Series B company, backed by over $100 million in funding from top-tier global investors, including QED, Castle Island, Switch Ventures, HTwenty, Monashees, and General Catalyst Customer Value Fund. This isn't just about the numbers; it's a testament to the trust our investors have in our vision and our team. Additionally, the Félix founders were selected as “Endeavour Entrepreneurs” and were recipients of the CrossTech Fintech Startups Award.

We are a group of extremely talented and dedicated high-performers, united by our shared obsession with a single goal: empowering our customers. We are all owners of Félix, driven by a bias for action and a true experimentation spirit to get things done with urgency and focus. Joining Félix means you will be part of a team building a legacy, a company that will outlive us all. This is a rare opportunity to apply your skills to a deeply meaningful mission—serving a community that has been underserved for too long.

We are a team that is fiercely loyal to each other, where radical transparency and constructive feedback are how we grow and push for excellence. We are bold, we care less about what others are doing, and more about creating sustainable value and a product that truly makes our users' lives better. We are building the future, today.

About The Role

We are seeking a Senior Software Engineer with deep expertise in Fraud and Risk Management systems, specifically within Fintech environments. As a key Sr. SWE 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.

This role is ideal for an engineer with 8+ years of experience, a strong systems background, and the ability to bridge engineering and product teams to protect user trust and platform integrity. This role is open to all candidates in Latin America.

Responsibilities

• Architect and build scalable, high-availability Fraud and Risk platforms, with a focus on performance, reliability, and extensibility.
• Own the design and development of core platform components such as event pipelines, rule engines, risk decision APIs, and signal ingestion layers.
• Implement and maintain infrastructure to support real-time fraud monitoring, including workflow orchestration, alerting, and rule evaluation systems.
• Drive the integration of third-party data providers and internal services into a unified fraud decisioning platform.
• Ensure systems are well-instrumented, observable, and resilient, with clear SLAs and robust monitoring.
• Collaborate with platform, infrastructure, and security teams to uphold compliance, scalability, and deployment best practices.

System Design & Leadership

• Design for scale, latency, resilience, and privacy in high-volume financial transaction environments.
• Evaluate and evolve risk decisioning frameworks, supporting both manual review and automated responses.
• Actively participate in incident resolution, RCAs, and on-call rotations for Fraud/Risk platforms.
• Raise engineering standards through thoughtful code reviews, architectural discussions, and mentorship.

Cross-functional Collaboration

• Partner with Product, Risk, Compliance, and Operations to define technical solutions that meet evolving fraud scenarios and regulatory requirements.
• Translate risk policy requirements into engineering deliverables.
• Collaborate across squads to ensure fraud systems integrate cleanly with onboarding, payments, and identity systems.
• Own, create and improve Fraud Metrics

Requirements

• 8+ years of professional software engineering experience, with at least 3+ 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, and false positive/negative tuning.
• Strong knowledge of databases, caching, and system performance optimization.
• Hands-on experience with observability and alerting in high-sensitivity systems.
• Proficiency in English at an Upper-Intermediate level or higher is required.

Nice to have

• Experience working in or closely with Fintech, Payments, Lending, or Banking platforms.
• 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.
• Previous experience mentoring engineers and influencing technical direction at team or domain level.

Success in This Role Means:

• You are a technical expert and go-to engineer in the fraud/risk space.
• You balance speed with rigor, able to deliver under pressure without sacrificing reliability.
• You proactively identify fraud gaps or design flaws, and lead efforts to fix them.
• You are capable of working across teams and roles, including product, compliance, and support functions.

What We Offer

• Competitive salary
• Initial stock options grant
• Annual performance bonus
• Health, dental, and vision plans
• Remote work environment, although we have offices in Miami and México City and would love to work in 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

Equal Opportunity Employer

At Félix, we are committed to providing equal employment opportunities to all qualified employees and applicants without regard to race, religion, nationality, sex, sexual orientation, gender identity, age, or disability. This policy applies to all terms and conditions of employment, including recruitment, hiring, placement, promotion, training, compensation, benefits, and termination.