Senior Mobile Engineer – Android

Monstro is the operating system for governed financial intelligence. We build governance and intelligence infrastructure that enables artificial intelligence to operate safely, explainably, 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, AndroidX, 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 maintainability
• Extensive experience with modern Android frameworks and libraries, including Jetpack Compose, AndroidX, Coroutines, and related tooling
• Deep expertise in secure data handling, including encryption, authentication/authorization flows, key management, and Android platform security best practices
• Demonstrated ability to diagnose and resolve complex issues related to performance, memory, threading, and real-world device constraints
• Strong communication skills, with the ability to collaborate cross-functionally and clearly articulate technical decisions in fast-paced environments
• Ability to lead by example, conduct high-quality code reviews, mentor engineers, and help raise the overall technical bar
• Genuine passion for building high-quality software, with a continuous improvement mindset and curiosity to stay current with Android platform evolution
• Clear communicator who takes ownership, moves with urgency, and drives work to completion

• Ownership & Impact: Shape the future of AI-powered finance—building a category-defining product used by consumers and institutions around the world.
• Elite Team: Join a team with leadership that has a track record of scaling companies from early stage to major exits.
• Principles-Driven Culture: Work in a culture that values speed, ownership, and impact—what most companies achieve in 90 days, we do in 45.
• Comprehensive Compensation Package: Competitive salary, equity, and robust benefits package, including paid health, vision, dental, and disability coverage.

Note: This role will be hybrid for those in the NYC metro or remote for those in the Denver metro area (but with the expectation of periodic in-person collaboration)

Base Compensation Range (New York City): $169,000 – $202,000
Base Compensation Range (Denver Metro): $149,000 –  $178,000

*The posted range reflects the base salary for this role across the market ranges for each location. Final compensation will depend on a variety of factors, including experience, skills, internal leveling, and market conditions, and will be offered within the stated range in accordance with applicable pay transparency laws.