Starting with fast, affordable remittances powered by AI and crypto rails, we are expanding into credit, savings, and wallet services to support the complete immigrant financial journey. We are a hyper-growth Series C company, backed by over $300 million in funding from top-tier general investors, including Andreessen Horowitz, QED, Castle Island, Switch Ventures, HTwenty, Monashees, General Catalyst Customer Value Fund. it's a testament to the trust our investors have in our vision and our team. Additionally, Félix was selected as an "Endeavour Entrepreneur" and was a recipient of the CrossTech Fintech Startups Award.
Joining Félix means you will be part of a team building a legacy, a company that will outlive us all. As a key member of our engineering team, you will have a unique opportunity to shape the core technology behind our chat-driven platform. Your role will be crucial in designing and enhancing interactive chat services and frontend (mobile and web) experiences that enable seamless, intuitive user interactions on platforms like WhatsApp, Web, and Mobile Application. Back-end: Python, Flask/FastAPI, REST APIs, Redis, SQL, gRPC
React, HTML/DOM, JavaScript, CSS, AJAX
React Native
Cloud: Google Cloud services (Firestore, Cloud Storage, Pub/Sub, Google Artifact Registry, Cloud Run, BigQuery, Cloud Composer, etc.)
Infrastructure: Kubernetes, Terraform, NewRelic, PagerDuty
Architect and implement high-performance, scalable backend microservices,



including core components of our Chat Platform.
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.
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.
~ Fluent or Advanced English.

Annual performance bonus
Health, dental, and vision plans
Currently fully remote, with a future transition to a hybrid setup.
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.

📌 Remote Senior Full Stack Rails Engineer (Ciudad de México)
🏢 Félix
📍 Ciudad de México