We’re looking for a Senior Android Engineer or Tech Lead who thinks like a product builder — someone who cares deeply about the “why” behind what they’re building, not just the tickets in the backlog You’ll be embedded in a cross-functional domain team (Backend, Mobile, ML/AI, QA, Design, and Product) and own the end-to-end development of features that genuinely matter: company accounts and cash flows, banking transactions, card issuance and management, and AI-enabled accounting You’ll help shape architecture decisions, raise the bar on engineering quality, and mentor the engineers around you If you’re energized by working at the intersection of great mobile engineering and real product impact — this is the role Design and build new features for our Android application, used daily by business owners across Europe Architect and implement reliable, intuitive solutions for multi-account cash flow management Architect and implement reliable, intuitive solutions for banking transactions and payments Architect and implement reliable, intuitive solutions for physical and virtual card issuance, activation, and control Architect and implement reliable, intuitive solutions for AI-powered accounting automation Build polished, responsive UIs using Jetpack Compose Take ownership of code quality, performance, and stability;

automated testing and thorough code reviews are non-negotiable Collaborate closely with Backend, QA, Design, and Product — shaping solutions end-to-end, not just implementing specs Drive technical decisions within your domain, challenge assumptions when needed, and proactively identify opportunities to build better Contribute to CI/CD pipelines, tooling,



and mobile best practices across the team You’re pragmatic and have a proven track record of shipping products that matter You communicate clear across disciplines and thrive in a cross-functional environment where everyone is solving the same customer problem together Experience with Cicerone or Jetpack Navigation Component Experience with Jetpack Compose Experience with feature-module architecture in production Hands-on experience with performance tooling such as Android Profiler, Perfetto, or Baseline Profiles Published apps on Google Play that you’re proud of Understanding of model capabilities and limitations, including choosing models for tasks and managing context windows A solid grasp of mobile security best practices Experience with dependency injection using Dagger 2, Hilt, or Koin Clear, concise communication in English across technical and non-technical audiences Hands-on experience with AI agents and LLM tools, including setting up agent environments and writing prompts, skills, and behavioral rules Deep understanding of OOP, SOLID, and Clean Architecture Hands-on experience with reactive programming and async using Rx Java and Kotlin Coroutines / Flow Confidence with Git / Git Lab, including setting up and maintaining Git Lab CI/CDAbility to evaluate and verify AI-generated output using automated tests, linters, and critical review Practical experience with Firebase, including FCM, Analytics, and Crashlytics Strong knowledge of Kotlin;

Java knowledge is a plus A builder’s mentality — you care about the product, the users, and the outcomes, not just the code Experience with AI-powered IDE tools, including agent mode, rules-file configuration, and integrating AI into the daily development workflow Awareness of AI security risks, including prompt injection, data leakage, and safe handling of untrusted inputs in agentic workflows Solid experience with presentation layer patterns — MVI, MVVM, and MVP — and the ability to choose the right one for the context An active Git Hub profile with code you’re happy to share Background in fintech or experience with financial products Experience with Retrofit for networking5+ years of commercial Android development Experience profiling and optimizing UI performance, including reducing overdraw, improving recomposition efficiency in Jetpack Compose, and achieving smooth 60/120fps rendering #J-18808-Ljbffr

📌 Senior Android Developer (Madrid)
🏢 Finom
📍 Madrid