• Create and maintain advanced application for our exchange on the iOS platform. • Design architecture and develop features for core app modules. • Optimize the app user experience on the iOS platform. • Have the ability to balance high response, stable and efficient code with attractive and functional aesthetics. • Work together with cross-functional teams to define, design, and ship new features. • Promote robust and maintainable code, clear documentation, and deliver high quality work.

• Optimize the app performance, including Memory, CPU, App Launch and Battery Usage. • Optimize the app user experience on the iOS platform. • Design architecture and develop features for core app modules. • Maintain the core app modules. • Promote robust and maintainable code, clear documentation, and deliver high quality work.

• Build and enhance user interfaces for the iOS app • Own and architect the iOS application • Write high-performance, maintainable code

Title: Senior Mobile Engineer (iOS) Location: Mexico City, Mexico Job Description: About EarnIn As one of the first pioneers of earned wage access, our passion at EarnIn is building products that deliver real-time financial flexibility for those with the unique needs of living paycheck to paycheck. Our community members access their earnings as they earn them, with options to spend, save, and grow their money without mandatory fees, interest rates, or credit checks. We’re fortunate to have an incredibly experienced leadership team, combined with world-class funding partners like A16Z, Matrix Partners, DST, Ribbit Capital, and a very healthy core business with a tremendous runway. We’re growing fast and are excited to continue bringing world-class talent onboard to help shape the next chapter of our growth journey. POSITION SUMMARY We are seeking a Senior iOS Engineer to lead the development and scaling of new and existing product experiences. You will drive feature development, serve as an architect, optimize performance, and ensure a seamless user experience to bring innovative ideas to life in a fast-paced environment. This position will be hybrid from our Mexico City office as part of our expanding site, with two days a week in the office required. EarnIn offers excellent employee benefits, including healthcare, internet and cell phone reimbursement, a learning and development stipend, and potential opportunities to travel to our Mountain View headquarters. Our salary ranges are determined by role, level, and location. WHAT YOU'LL DO - Drive the development and implementation of complex product features that significantly impact customer experience and business outcomes. - Potentially achitect, lead, and optimize mobile infrastructure, ensuring exceptional scalability, performance, and reliability to support the organization's strategic growth. - Lead collaborative efforts with backend engineers to define and evolve robust, efficient, and well-documented APIs for seamless mobile-to-server communication. - Champion and enforce engineering best practices across teams, raising the standards for code quality, system design, and operational excellence. - Proactively identify and drive strategic technical initiatives, providing clear vision, architectural guidance, and effective problem-solving for complex challenges. - Potentially architect and oversee the development of comprehensive unit, integration, and UI automation testing strategies to guarantee the quality and stability of new features and the resilience of existing functionalities. - Define and analyze key performance indicators using advanced analytics to measure feature effectiveness, identify areas for improvement, and drive data-informed decisions for future product enhancements. WHAT WE'RE LOOKING FOR - Bachelor’s degree (or higher) in Computer Science or a related field, or equivalent practical experience. - 4+ years of relevant industry experience, with a significant portion focused on mobile development and a track record of leading complex projects. - Expert-level proficiency in Swift, with deep expertise in modern iOS paradigms (Combine, Swift Concurrency, SwiftUI, etc). - Extensive and nuanced understanding of iOS application architectures (MVVM, MVP, VIPER, etc.) and their trade-offs. - Proven ability to architect scalable and maintainable mobile solutions. - Some experience in mentoring and guiding other engineers, fostering technical growth within the team. - Familiarity with Android development and cross-platform technologies is a strong plus. - Active participation in the broader iOS development community (e.g., open-source contributions, conference presentations) is a plus. - Experience using AI-assisted development tools (e.g., Copilot, Cursor, LLMs) #LI-Hybrid At EarnIn, we believe that the best way to build a financial system that works for everyday people is by hiring a team that represents our diverse community. Our team is diverse not only in background and experience but also in perspective. We celebrate our diversity and strive to create a culture of belonging. EarnIn does not unlawfully discriminate based on race, color, religion, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, legally protected medical condition, family care status, military or veteran status, marital status, registered domestic partner status, sexual orientation, genetic information, or any other basis protected by local, state, or federal laws. EarnIn is an E-Verify participant. EarnIn does not accept unsolicited resumes from individual recruiters or third-party recruiting agencies in response to job postings. No fee will be paid to third parties who submit unsolicited candidates directly to our hiring managers or HR team.