Senior Mobile Engineer – Android

About Monstro

Monstro is the operating system for governed financial intelligence. We build governance and intelligence infrastructure that enables artificial intelligence to operate safely, explain ably, and at institutional scale.

We exist because the level of financial guidance historically available to a small group should be accessible to many more people. By combining AI with deep institutional infrastructure, we help financial institutions deliver more personalized, responsible, and life‑changing financial support to millions of individuals.

We’re building mission‑critical systems in a highly regulated domain, and we care deeply about doing it right. If you’re motivated by meaningful problems, high standards, and shaping infrastructure that improves financial outcomes, you’ll feel at home here.

We’re looking for a founding Senior Android Engineer to help build the native Android experience for our financial platform. You’ll design and deliver secure, high‑performance features that help users understand and manage their financial lives, while laying the foundation for a long‑term mobile architecture. This is a hands‑on, collaborative role where your work will directly shape the core experience our users rely on every day.

Monstro’s mobile app is central to how users interact with their financial universe. Your work will help define the quality, responsiveness, and trustworthiness of that experience. The systems you build must be secure, elegant, and resilient—handling sensitive financial data at scale while remaining intuitive and reliable.

• Android Application Development
  :
  Design, build, and maintain core features using Kotlin and modern Android frameworks (Jetpack Compose, Android
  
  X, Coroutines). Deliver smooth, intuitive user experiences that support complex financial workflows. Own feature development end‑to‑end—from architecture to implementation, testing, and release.
• Architecture & Scalability
  :
  Establish architecture patterns (MVVM, MVI, Clean Architecture) that support speed, maintainability, and long‑term scale. Optimize performance, responsiveness, offline/online behavior, and data persistence. Build for speed and correctness in a regulated environment.
• Integration & Data Handling
  :
  Integrate mobile clients with backend APIs, financial data systems, and third‑party providers. Work closely with backend engineers to shape efficient API interactions and ensure seamless real‑time data flows within the app.
• Security & Compliance
  :
  Implement secure data handling practices required for financial applications. Ensure proper encryption, secure storage, authentication flows, and session management. Build with the rigor necessary for regulated, high‑trust environments.
• Collaboration & Execution
  :
  Partner with product managers, designers, and fellow engineers to deliver cohesive, user‑centered features. Contribute to architectural discussions, planning, and code reviews. Support engineering excellence through documentation, testing, and raising the overall technical bar.

• The Android experience is fast, secure, and reliable—earning user trust through performance and clarity.
• The codebase is clean, scalable, and adaptable to rapid iteration and future features.
• Architecture patterns are consistent, documented, and adopted across mobile engineering.
• The app consistently meets Monstro’s standards for performance, security, and usability in a regulated environment.
• Collaboration, documentation, and technical rigor are elevated across the team through your example.

• 7+ years of professional Android development experience, with a proven track record of building, shipping, and maintaining production Android applications at scale.
• Expert‑level proficiency in Kotlin, with deep experience across modern Android development practices.
• Demonstrated ownership of end‑to‑end Android features or full applications, from design through release and long‑term maintenance.
• Proven ability to design, implement, and evolve Android architectures (MVVM, MVI, Clean Architecture), making thoughtful tradeoffs around scalability, performance, and…