Senior Software Engineer

Overview Senior Software Engineer (Chat Platform) – Félix Join to apply for the Senior Software Engineer (Chat Platform) role at Félix. About Félix 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. The Félix founders were selected as “Endeavour Entrepreneurs” and recipients of the CrossTech Fintech Startups Award. We are a team of high-performers, united by a single goal: empowering our customers with radical transparency, ownership, and urgency to get things done. We are building the future, today. Role open to all candidates in Latin America. About The Role As a key member of our engineering team, you will shape the core technology behind our chat-driven platform. You will work on Félix Pago’s Chat Platform — a system that processes high volumes of transactions and delivers conversational experiences through integrated chatbots and natural language interfaces. Your role will design and enhance interactive chat services that enable seamless user interactions on platforms like WhatsApp. If you have experience building chatbots or crafting conversational experiences, this is your chance to make a significant impact. Technology Stack: Front-end: React, HTTP, HTML/DOM, JavaScript, CSS, AJAX Back-end: Python, Flask/FastAPI, REST APIs, Redis, SQL, gRPC Cloud: Google Cloud services (Firestore, Cloud Storage, Pub/Sub, Google Artifact Registry, Cloud Run, BigQuery, Cloud Composer, etc.) Infrastructure: Kubernetes, Terraform, NewRelic, PagerDuty Responsibilities Design & Architecture: Architect and implement high-performance, scalable backend microservices, including core components of our Chat Platform. Conversational Interfaces: Build, deploy, and iterate on chatbot 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. Web Development: Build user-facing applications that integrate with our chat-based solutions. Cloud Integration: Develop backend services using established industry standards and Google Cloud services. Collaboration & Mentorship: Mentor junior developers and collaborate with product, UX/UI, and business units. Continuous Improvement: Iterate on the conversational experience using customer feedback and analytics. Requirements 5+ years of experience as a Software Engineer in a fast-paced environment. Proven ability to build, ship, and iterate on software applications with real-world impact. Strong foundation in algorithms and data structures. Experience with web services, including SOAP and REST APIs. Familiarity with architectural patterns (Hexagonal, Event-Driven, A/B Testing, Feature Flags, Gradual Rollouts). Conversational experience: building chatbots or NLP interfaces; familiarity with chatbot frameworks (DialogFlow, IBM Watson, Rasa) is a plus. 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 with innovative ideas. Excellent prioritization skills. Curiosity and/or experience in Fintech is a plus; equivalent competencies considered. What We Offer Competitive salary Initial stock options grant Annual performance bonus Health, dental, and vision plans Remote work environment with offices in Miami and Mexico City; potential hybrid model Continuous learning opportunities Unlimited PTO Paid parental leave 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. #J-18808-Ljbffr