Mobile Engineer, Treasury

🚀 MOBILE ENGINEER Location: SF/NYC/ Hybrid Type: Full-Time | Founding Team Opportunity ABOUT NAVIGATE AI Navigate is an early-stage startup building groundbreaking technology to bring AI to the largely untapped workforce in the field. We've partnered with some of the biggest construction companies in the US and have access to sophisticated AI, AR, and CV platforms, —but now we need to shape it into a magical product. This is where you come in. THE ROLE We're looking for a mobile engineer who thrives at the intersection of product, design, and engineering. You're someone who cares deeply about the end-to-end user experience, not just the code. You’ll help us transform bleeding-edge AI into something people want, love, and use daily. You’ll collaborate directly with the founders to shape the mobile product from scratch, build out core features, and influence every decision—what we build, how it feels, and how it scales. WHAT YOU’LL DO * Design, develop, test, and deploy high-quality mobile applications on iOS (Swift) and Android (Kotlin/Java) platforms. * Collaborate with product designers, AI/ML engineers, and backend developers to deliver seamless UX and feature-rich functionality. * Integrate UI designs and wireframes into engaging, interactive mobile experiences. * Connect mobile apps to backend APIs (e.g., REST, GraphQL) and cloud services (e.g., AWS, Firebase). * Improve app performance through memory and network optimization, profiling, and performance tuning. * Establish and maintain CI/CD tooling for mobile development, and manage app store release pipelines. * Write clean, maintainable code and conduct code reviews, unit and UI testing, and debugging. * Stay up to date with mobile development best practices, emerging tools, frameworks, and trends. * Advocate for mobile-first thinking in user workflows and help shape product evolution. YOU MIGHT BE A FIT IF YOU: * 3+ years of experience in mobile app development with demonstrable work on iOS and Android. * Proficient in Swift and Kotlin (or Java), and with development tools like Xcode and Android Studio. * Strong understanding of mobile architecture patterns (MVC, MVVM, Clean Architecture), best practices, and UI/UX design guidelines. * Experience with API integrations, third-party SDKs, and mobile networking. * Skilled in testing (unit tests, UI tests), build automation, version control (Git), and release management. BONUS POINTS IF YOU: * Cross-platform experience using Flutter, React Native, or similar frameworks. * Familiarity with mobile analytics, crash reporting, performance monitoring (e.g., Firebase Crashlytics). * Knowledge of secure coding practices and data privacy guidelines. * Exposure to Agile workflow, JIRA/Trello, and remote collaboration tools. WHY JOIN US? * Help shape a truly innovative product from day one * Work with a small, fast, curious team who cares deeply about the craft * Have massive influence over what we build and how we build it * Competitive salary + meaningful equity

Hello. We’re Teya. Teya was founded on a simple belief: local businesses deserve better. They are the cafés, restaurants, salons, shops and entrepreneurs that bring character to our high streets, create jobs and keep communities moving. Yet for too long, financial services has made life harder for them - with clunky tools, poor support and complexity that gets in the way of running a business. Teya exists to change that. We’re building a financial platform for local businesses across Europe - one built around simple tools, thoughtful design and real human support. Our Members rely on us to help them run their business with confidence, and that responsibility shapes the way we work. We move fast. We care about quality. We stay close to the detail. And we believe great performance and genuine hospitality should go hand in hand. If you want to build meaningful products, solve real problems and make a genuine difference for local businesses, we’d love to hear from you Your Mission To empower small and medium-sized businesses across Europe by building and enhancing Teya’s mobile applications. Deliver scalable, secure, and innovative solutions that help business owners thrive and reconnect with the joy of running their businesses. As a Mobile Software Engineer at Teya, you will: * Develop cross-platform mobile applications using Kotlin. * Write clean, maintainable, and secure code to address complex business problems. * Prioritize performance, scalability, and maintainability in all development tasks. * Seamlessly integrate various APIs and SDKs, ensuring reliability and efficiency. * Focus on delivering a modern, intuitive, and user-friendly experience for merchants across Europe. * Collaborate with cross-functional teams to align technical solutions with business objectives. * Actively participate in critical project decisions, including architecture design, framework selection, and tool evaluation. * Mentor and support team members, fostering a collaborative and growth-oriented environment. * Continuously improve applications while applying automation best practices to reduce waste and error. * Work within Agile/Scrum methodologies, ensuring timely delivery, iterative improvements, and collaboration across teams.   Key Responsibilities * Build mobile applications that support payments acceptance, business account services, card issuing, and ePOS systems. * Incorporate state-of-the-art technologies to enable offline capabilities, secure data storage, and dynamic app features like push notifications and deep linking. * Ensure seamless app upgrades and support internationalization/localization. * Collaborate with design and product teams to deliver a compelling user experience. * Contribute to CI/CD pipelines, scalable logging, and observability practices. * Embrace clean architecture principles, including Domain, Application, Infrastructure, and Presentation layers. * Participate in daily stand-ups, sprint planning, and retrospectives as part of Agile workflows. * Work closely with Product Owners to refine requirements and deliver incremental value in each sprint. What you'll build * Cross-platform payment SDKs that work seamlessly on Android and iOS * Device abstraction layers that enable payment processing across different hardware configurations * Developer tools and documentation that make payment integration simple and reliable * Standardized APIs that reduce complexity for third-party integrators * Secure, compliant payment processing components that meet industry standards   Your Story:   Essential Requirements * Kotlin Multiplatform Experience: Hands-on experience developing and shipping KMP projects, including shared business logic and platform-specific implementations * Mobile Development: Strong background in either Android (Kotlin) or iOS development with understanding of mobile app architecture patterns * SDK Development: Experience building SDKs, libraries, or frameworks that other developers consume, with focus on API design and developer experience * Payment Technology Knowledge: Understanding of payments, NFC technology, financial transaction processing, banking Technical Skills * Advanced Kotlin: Deep expertise in Kotlin language features, coroutines, and multiplatform-specific APIs * Cross-Platform Architecture: Understanding of shared code strategies, expect/actual patterns, and platform-specific implementations * API Integration: Experience with RESTful services, secure communication protocols, and third-party API integration * Testing & Quality: Strong testing practices including unit testing, integration testing, and automated testing frameworks * Security Awareness: Understanding of secure coding practices, especially relevant to financial/payment applications Preferred Qualifications * Experience with payment processing systems, EMV standards, or financial technology * Knowledge of NFC technology, contactless payment protocols, or mobile payment frameworks * Background in modular architecture, dependency injection, and clean architecture principles * Experience with CI/CD pipelines and automated deployment for multi-platform projects * You have experience with design tools such as Figma and Canva * You’re highly organised with strong project management skills * You’re a great communicator and collaborator * You have a growth mindset with eagerness to learn and a hands-on attitude   The Perks * We trust you, so we offer flexible working hours, as long it suits both you and your team; * Health Insurance; * Meal Allowance; * 25 days of Annual leave (+ Bank holidays); * Public Transportation Card; * Frequent team events & activities in the office and outside; * Office snacks every day; * Friendly, comfortable and informal office environment. Teya is proud to be an equal opportunity employer. We are committed to creating an inclusive environment where everyone regardless of race, ethnicity, gender identity or expression, sexual orientation, age, disability, religion, or background can thrive and do their best work. We believe that a diverse team leads to better ideas, stronger outcomes, and a more supportive workplace for all. If you require any reasonable adjustments at any stage of the recruitment process whether for interviews, assessments, or other parts of the application—we encourage you to let us know. We are committed to ensuring that every candidate has a fair and accessible experience with us.