**About Entrupy** Entrupy is a global technology company whose mission is to protect businesses, borders and consumers from transacting in counterfeit goods. Entrupy has developed a patented technology system which utilizes a combination of AI and computer vision to instantly identify and authenticate high value physical goods. Entrupy's solutions serve business customers including leading luxury brands, retailers, e\-commerce marketplaces and online resellers in over 60 countries. Entrupy is growing quickly with team members based in the US, India, Japan and Brazil. Entrupy's solutions in market: * Entrupy Apparel Authentication * Entrupy Bags \& Leather Goods Authentication * Entrupy Sneaker Authentication * Entrupy Fingerprinting **As we continue to build...** We're seeking curious, growth minded thinkers to help shape our vision, structures and systems; playing a key\-role as we launch into our ambitious future. If you're invigorated by our mission, values, and drive to change the world — we'd love to have you apply. **About the Role:** Entrupy is seeking a Senior Android Developer to help build and evolve our **Android app**, which is central to our product experience. The core foundations are already in place, and you'll play a key role in **advancing the app toward its initial launch and beyond**, delivering a polished, reliable experience for our users. While the majority of your work will focus on **app development**, you'll also contribute to parts of our **Android SDK**, ensuring it's robust, easy to integrate, and aligned with the app's capabilities. This role is ideal for someone who enjoys working on **customer\-facing mobile products**, collaborating closely with product and design, and taking ownership of features from development through release. This role will collaborate closely with our iOS and backend teams to deliver seamless and robust solutions. **Location:** Remote\- Brazil **Reports To:** Android Lead **What you'll do:** * Build, enhance, and maintain our **Android app**, with a focus on performance, usability, and reliability * Contribute to the development and evolution of our **Android SDK** * Help prepare the app for **initial launch**, including feature completeness, stability, and polish * Collaborate with product, design, and backend teams to deliver end\-to\-end features * Write clean, testable, and maintainable Kotlin code * Debug issues, improve app performance, and ensure high\-quality releases * Participate in code reviews and contribute to technical decisions * Collaborate with designers to ensure the SDK provides an intuitive and user\-friendly experience. * Ensure the quality and performance of the SDK through testing, troubleshooting, and optimization. * Coordinate feature development and releases, manage timelines, and communicate progress with stakeholders. * Create and maintain comprehensive documentation for the SDK to facilitate ease of use and integration by other teams. **What you bring:** * At least 5\-7 years of professional software development experience, with a focus on Android. * Strong experience developing **Android applications** using **Kotlin** * Solid understanding of Android architecture patterns (MVVM, VIPER, Clean Architecture, etc.) * Experience shipping and maintaining production Android apps * Familiarity with Android SDK development or shared libraries (nice to have) * Experience working with REST APIs and modern mobile tooling * Ability to work collaboratively and take ownership of features * Demonstrated experience in building SDKs or similar libraries. * Proficient in Kotlin and Java. * Experience with multi\-threading and asynchronous programming in Android. * Familiarity with RESTful APIs and integrating third\-party services. * Experience with UI/UX design principles or a willingness to propose first\-draft solutions. * Excellent communication and collaboration skills, able to work in a fast\-paced, distributed environment. * Familiar with or interested in AI development tools such as Cursor or Claude Code. **Good to have:** * Experience with reactive frameworks such as Jetpack Compose. * Experience contributing to or maintaining an **Android SDK** * Experience supporting an app through **launch or early\-stage growth** * Experience with CI/CD pipelines and mobile app deployment processes. * Experience with machine learning integration in mobile applications. * Familiarity with cloud services (e.g., AWS, Firebase) and backend integration. * Knowledge of Python and backend development is a plus. * Knowledge of iOS (Swift, Objective\-C) is a plus. **What we offer:** * Market competitive and pay equity\-focused compensation structure * Generous time away including company holidays, paid time off, sick time, and more! * Opportunity to be part of the diverse and growing team across Japan, US, India, and Brazil. We have had an incredible run so far and laying the foundation for a culture that is fast\-paced, entrepreneurial, and rooted in passion, kindness, and positivity. We live by these values – we hire by them, promote them, and celebrate them every day. Please apply if you're a coding ninja with a passion for cutting\-edge technology and want to be at the forefront of AI innovation. Entrupy embraces a diversity of backgrounds and experiences and provides equal opportunity for all applicants and employees. We are dedicated to building a company that represents a variety of backgrounds, perspectives, and skills. We believe that the more inclusive we are, the better our work (and work environment) will be for everyone.