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Principal Responsibilities: Design, implement, and maintain enterprise cloud solutions primarily in Microsoft Azure. Develop cloud adoption, migration, and modernization strategies. Architect highly available,…
Creates clear, user-friendly Japanese microcopy and communications for PayPay’s fintech apps and web tools, collaborating with designers and engineers to improve UX.
Designs banking experiences for PayPay Bank’s 10M+ users, leading UX/UI for apps, web, and mini-apps while collaborating with product managers and engineers to ship features and improve user journeys.
Design end-to-end UX/UI for PayPay’s fintech apps, focusing on payments and money-management features while collaborating with engineers and product managers.
Designs banking apps and services for PayPay Bank, focusing on user experience across mobile, web, and mini-apps using Figma and Adobe tools.
Build and maintain web frontend features for Japan’s leading payments app using TypeScript, Vue.js/React, and modern DevOps tooling.
Research and build ML models to detect abusive apps on Android, analyzing billions of users’ data to improve safety and system efficiency.
Define and govern cloud-native architectures for mobile-focused product tribes at a global insurer, ensuring scalable, secure, and observable solutions while coaching engineering squads.
Act as the technical lead for customers integrating Memfault’s embedded OS tools into Android/AOSP and Linux firmware, driving POCs and onboarding workflows.
Build and improve the Android practice-management app for healthcare clinicians using Kotlin, Realm, and Rx/Coroutines, collaborating with backend teams on API design.
Build native Android apps in Java/Kotlin for a medical-device company, integrating with embedded systems to deliver dialysis care software for clinicians and patients.
Build and maintain web and mobile web apps for fintech and e-commerce clients using Java, Spring, JavaScript, and AngularJS.
Perform security assessments and penetration tests on IT infrastructures, web apps, cloud environments, and AI-driven systems to identify vulnerabilities and advise clients on hardening measures.
Perform penetration tests on IT infrastructures, web apps, cloud environments, and AI-driven systems to identify vulnerabilities and advise clients on security improvements.
Build and own OKX’s in-house messaging platform and SDK, unifying real-time chat, payments, and AI-agent interactions across iOS/Android using Rust/UniFFI, while optimizing for latency, reliability, and battery under global network conditions.
Develops cross-platform mobile apps for iOS and Android, designing interfaces and building backend integrations to support enterprise workflows.
Designs bold UI concepts and visual language for a real-estate platform, iterating on design systems and prototyping animations to improve user experience across web and mobile.
QA specialist tests mobile app and backend services for a food-tech e-commerce app, validating user flows, API integrations, and edge cases across iOS/Android.
Build and maintain Speechify’s iOS app, leading engineering decisions to scale features for millions of users who rely on text-to-speech for productivity and accessibility.
Design pixel-perfect UI and lead UX for real-time sports data, 3D graphics, and AI-driven storytelling across web and mobile apps used by millions of global fans.
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