Senior Full Stack Engineer (Mobile Frontend Oriented)
Felix Technologies, Inc. · Posted Nov 13, 2026
- Remote
- Remote
- Full-time · Senior
- 5+ years
As a key member of our engineering team, you will have a unique opportunity to shape the core technology behind our chat-driven platform. You will work on the Félix's Product Engineering team — a sophisticated system that not only processes high volumes of transactions but also delivers conversational experiences through integrated chatbots and natural language interfaces. 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.
Compensation
Competitive salary Initial stock options grant Annual performance bonus
Responsibilities
- Design, develop, and iteration of our mobile application, building fast, reliable, and intuitive experiences with React Native or similar frameworks.
- Architect and implement high-performance, scalable backend microservices, including core components of our Chat Platform.
- Deliver features across the full stack, from the mobile UI to the backend services and APIs that support them, and contribute to backend logic.
- 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.
- Leverage customer feedback and analytics to iterate and improve our conversational experience, ensuring that our chatbots remain effective and user-friendly.
Requirements
- Nice to have: Flutter
- Nice to have: Hexagonal Architecture
- Nice to have: Event Driven Architecture