Senior Full-Stack Engineer - Remote Fintech Chat Platform

Félix; Región Centro; Remote; MXN 2,229,000 - 3,343,000; Full time

Benefits offered by this job

Salary update and equity grants

Annual performance bonus

Health, dental, and vision plans

Remote work now, future hybrid

Unlimited PTO

Paid parental leave

Job summary

Félix is building a chat-driven financial platform to empower Latinos in the US with seamless cross-border remittances and crypto-enabled services. As a key member of our Product Engineering team, you will design scalable backend microservices and interactive UI features across web and mobile, delivering real-time, conversational experiences.

You will work with Python, React, and Google Cloud to create high-performance systems that support millions of transactions while aligning with product

Qualifications

• 5+ years of experience as a Software Engineer in a fast-paced environment.
• Proven ability to build, ship, and iterate on software applications with an emphasis on real-world impact.
• Strong foundation in algorithms and data structures.
• Experience with web services, including SOAP and REST APIs.
• Familiarity with architectural patterns like Hexagonal Architecture, Event Driven Architecture, A/B Testing, Feature Flags, and Gradual Rollouts.
• Familiarity with AI tools such as Claude, Cursor, Codex or similar technologies.
• Passion for building products that positively impact millions.
• Commitment to continuous learning and exploration of new technologies.
• Ability to thrive in a collaborative environment and contribute actively with innovative ideas.
• Excellent prioritization skills.
• Curiosity and/or experience in Fintech is an added advantage (though equivalent competencies will also be considered).
• Fluent or Advanced English.

Responsibilities

• Design & Architecture: Architect and implement high-performance, scalable backend microservices, including core components of our Chat Platform.
• User Interfaces: Build, deploy, and iterate on UI services and conversational interfaces that empower users to interact naturally with our remittance services.
• Infrastructure: Design and manage infrastructure capable of handling millions of daily requests with real-time messaging capabilities.
• Cloud Integration: Develop backend services using established industry standards and Google Cloud services.
• Collaboration & Mentorship: Foster the growth of junior developers through mentorship and best practice implementation, while collaborating closely with cross-functional teams including product, UX/UI, and business units.
• Continuous Improvement: Leverage customer feedback and analytics to iterate and improve our conversational experience, ensuring that our chatbots remain effective and user-friendly.

Tools

Python

Flask/FastAPI

REST APIs

Redis

SQL

gRPC

React

JavaScript

HTML/DOM

CSS

AJAX

React Native

Google Cloud Firestore

Cloud Storage

Pub/Sub

Google Artifact Registry

Cloud Run

BigQuery

Cloud Composer

Kubernetes

Terraform

NewRelic

PagerDuty

Job description

Félix is building a chat-driven financial platform to empower Latinos in the US with seamless cross-border remittances and crypto-enabled services. As a key member of our Product Engineering team, you will design scalable backend microservices and interactive UI features across web and mobile, delivering real-time, conversational experiences.

You will work with Python, React, and Google Cloud to create high-performance systems that support millions of transactions while aligning with product