.Senior Full-Stack Product Startup Engineer [HYBRID REMOTE]TL/DR: You'll lead design and architecture of payment processing systems and a beautiful react native mobile app. You're a wizard at your craft, while also being a team player that can guide the team to successful releases.The OpportunityGet on the ground floor of an early stage fintech startup backed by YC as the first engineering hire. This is a unique opportunity that will be a direct placement at the startup as a hybrid position in Mexico City (CMDX).Their mission: Create a global payment solution that is fast, affordable, and optimized for the nomadic lifestyle.Stack: React, Node.JS, React Native, Next.JSWhat You'll DoDesign and Architect. Lead the design and architecture of our payment processing systems, ensuring they meet scalability, security, and performance requirements.Ensure Security. Our software systems need to be secure and compliant with industry standards and regulations.Ship Value Fast. You'll move fast, constantly shipping value consisting of clean, empathetic, efficient code. Bugs happen - own them; fix them.Contribute Broadly. You'll work with and contribute to product, design, engineering and architecture, applying your skills and insights to plan, develop, and own new tasks.Own the Process. You'll own responsibility for your delivery and execution. You'll forge new paths forward while not waiting to be handheld.Improve and Grow. You'll be learning, improving, and teaching alongside others who love to do the same. You'll lead and give constructive feedback. You'll challenge both yourself and your team as they challenge you.Make an Impact. You'll be working with small teams. The things you do will have a large impact on shaping the delivery of products and features.Who You AreYou love to build and deliver. You're obsessed with creation and delivery of value.You are a wizard. You have end-to-end experience building out web and mobile applications. Others look up to and respect your technical skill sets. Your past experiences will help guide you and your team through challenges.You thrive in fast-paced environments. This is an environment of high iteration. There is constant change and sometimes little guidance. You aren't held back by the fear of being wrong or making a mistake.You are empathetic for developers and consumers. You build with future and current developers in mind – making it easy for others (or even yourself!) to pick up where you left off. You also build with your consumer in mind.You diagnose problems. You challenge prevailing assumptions and dig to the root of issues. You solve problems rather than treat symptoms.You're a strong leader.You're passionate. You take pride in your craftsmanship and are passionate about quality software engineering.You are candid. You're candid, but respectful. You share pertinent information, even when difficult. You admit mistakes. You openly disagree and explain why.What You HaveProficiencies:Node