Principal Mobile Engineer

About Payoneer Founded in 2005, Payoneer is the global financial platform that removes friction from doing business across borders, with a mission to connect the world’s underserved businesses to a rising global economy. We’re a community with over 2,500 colleagues all over the world, working to serve customers, and partners in over 190 countries and territories. By taking the complexity out of the financial workflows–including everything from global payments and compliance to multi-currency and workforce management, to providing working capital and business intelligence–we give businesses the tools they need to work efficiently worldwide and grow with confidence. Principal Mobile Engineer AI-Native Cloud Platform Team: Mobile Platform Team Reports to: Sr. Director of R&D, Cloud Platform Location: [Gurgaon / Hybrid] About the role Payoneer is investing in the next generation of its mobile application: lightweight, high-performance, and designed as a platform that lets product teams contribute features independently while the app remains coherent, fast, and stable as a whole. The host application will provide the common foundations — observability, logging, navigation, identity, networking, feature flags, release tooling, automation — and product teams will plug into it through a clear contribution model. We are hiring two Principal Mobile Engineers to define and build this foundation alongside the existing mobile team. Together you will own the tech stack decision — native iOS and Android, Flutter, React Native or a hybrid — and you will shape the platform every product team at Payoneer ships mobile features on top of. The two-Principal structure gives us the capacity to build the platform properly, and the optionality to specialize one Principal per native platform if we go that route. What you’ll own You will own the tech stack decision and the rationale behind it. You will run the evaluation — native (Swift / Kotlin) vs Flutter vs React Native vs hybrid — against real constraints: performance, binary size, hiring market, team contribution model, build and release velocity, long-term maintenance cost. You will make the call jointly with your peer Principal and you will be expected to defend it under scrutiny from engineering, product, and executive leadership. You will build the host application foundation. The architecture, the module boundaries, the navigation and lifecycle model, the dependency injection approach, the state management patterns, the threading and concurrency model, the network stack, the persistence layer, the observability and logging backbone, the release and rollout machinery, the testing strategy at every level of the pyramid. Every product team’s first impression of mobile at Payoneer will be the abstractions you ship. You will define the contribution model that product teams use to deliver features into the host app. Module boundaries, public API surface, lifecycle hooks, dependency policy, build and integration patterns, version compatibility, and the developer experience that makes contributing a feature fast and contributing a bad one hard. You will own the standards every contributing team writes against. You will own performance, binary size, startup time, frame rate, memory, and battery as first-class engineering disciplines with measured budgets and gates. You will own crash-free rate and stability as platform commitments. You will own the CI/CD, signing, release, and rollout pipeline for the app, and the observability that makes a production issue debuggable in minutes rather than days. You will partner with the Application Foundations Crew and the Cloud Platform Base, DevEx, and Network and Security teams to make sure mobile integrates cleanly with the platform — APIs, events, identity, secrets, automation and the shift-left controls that apply on the mobile side as much as the server side. You will partner with product engineering across the company to bring contributing teams into the pla…