• Definir la arquitectura frontend (SPA, microfrontends, SSR, etc.) • Establecer estándares de desarrollo (componentización, diseño responsive, accesibilidad) • Seleccionar frameworks y librerías (React, Angular, Vue, etc.) • Diseñar sistemas de diseño (Design Systems) • Colaborar con UX/UI para asegurar consistencia visual y usabilidad • Implementar estrategias de testing • Asegurar compatibilidad cross-browser y dispositivos • Definir estrategias de despliegue (CI/CD frontend)

• Own end-to-end frontend development for core crypto money movement experiences, including send, receive, and transaction status tracking across web and mobile • Drive measurable improvements in CUJ latency, availability, and SLOs for the payment flows you own • Build new user-facing features - such as contact management systems and real-time transaction status trackers • Partner with product, design, and backend engineering to scope, prioritize, and ship projects that reduce CX contact rates and improve the customer experience • Identify and resolve frontend performance bottlenecks across payment flows, reducing end-to-end latency and improving reliability for millions of users

• Own end-to-end frontend development across web and mobile for Coinbase's card products using React and React Native. • Build new features that expand the credit card's value proposition and drive user acquisition, activation, and engagement. • Partner with product management, design, and backend engineers to translate complex financial and crypto mechanics into clear, polished user experiences. • Drive frontend performance, reliability, and accessibility improvements across the card surfaces. • Contribute to experimentation and funnel optimization efforts that measurably improve conversion and retention.

• Develop and test web applications, databases, and interfaces. • Design or configure web layouts, functionality, and navigation for MEI and affiliated company websites or portals. • Verify compatibility and usability across various web browsers and digital or electronic devices (Windows/PC, Apple iOS, Android, laptop/notebook, etc.). • Analyze user metrics to maximize marketability and search engine optimization. • Design and test interfaces for intra-company interaction with a focus on aesthetics and/or design and usability. • Design, develop, and maintain MEI’s intranet portal, and websites or portals for MEI’s wholly owned subsidiaries using content creation tools and digital media. • Develop databases that support MEI’s web applications and websites. • Evaluate code to ensure validity, structure, and compatibility with varying browsers, devices, or operating systems. • Work in conjunction with management and team members to prioritize needs, resolve conflicts, improve content, or find solutions, as necessary. • Perform Help Desk responsibilities involving direct communication (telephone or email) with end users and assist with troubleshooting. • Develop and/or implement procedures for ongoing website revisions and updates. • Clearly articulate website specifications such as features, activities, software, functionality, programming languages, or operating systems and software or hardware requirements. • Perform code reviews; participate in releasing code per SOP and company-specific requirements. • Assist in server maintenance and setup; may participate in evaluating and recommending server hardware or software requirements. • Design, implement, and maintain security measures that may consist of firewalls or message or content encryption. • Perform regular and predictable work in a remote setting and perform work during scheduled or agreed-upon times.