Senior Android Engineer, Health Intelligence

United States Digital Space LLC; Helsinki; Hybrid; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Competitive salary

Lunch benefit

Wellness benefit

Flexible working hours

Occupational healthcare

Personal learning & development

Job summary

United States Digital Space LLC is seeking a senior Android engineer in Helsinki (onsite or remote) to join the Health Intelligence Team, delivering AI-powered health insights to members.

You will own features end-to-end, collaborate with product, design, backend, and data science, and implement Kotlin with Jetpack Compose in a scalable architecture.

We offer competitive pay, lunch and wellness benefits, flexible hours, and opportunities to grow within a fast-moving, health-focused company.

Qualifications

• Minimum 5 years shipping Android apps.
• Proficient in Kotlin, Jetpack Compose, MVVM/MVI.
• Experience building complex UI components for mobile apps.
• Strong collaboration with designers, product managers, and engineers.

Responsibilities

• Collaborate with engineers, designers, UX and product managers to deliver AI-powered health insights.
• Own end-to-end Android features from prototype to production.
• Develop features using Kotlin and Jetpack Compose with scalable architecture.
• Refactor code to improve performance and maintainability.
• Contribute to shared design-system components and libraries.
• Improve CI tooling and engineering practices to raise velocity.

Skills

Android development

Kotlin

Jetpack Compose

MVVM/MVI

Unit testing

CI for mobile

Cross-functional collaboration

Problem-solving

Communication

Tools

Git

CI pipelines

Room

SQLDelight

Job description

Our mission at the company is to empower every person to own their inner potential. Our award-winning products help our global community gain a deeper knowledge of their readiness, activity, and sleep quality by using their the company Ring and its connected app. We've helped millions of people understand and improve their health by providing daily insights and practical steps to inspire healthy lifestyles.

Empowering the world starts with living our values and empowering our team. As a quickly growing company focused on helping people live healthier and happier lives, we ensure that our team members have what they need to do their best work — both in and out of the office.

the company’s engineering organization consists of talented developers distributed across the EU and US. For day-to-day feature work, our engineers are organized into smaller cross-functional, geolocation-specific feature squads or teams. Our squads have a great deal of autonomy and are responsible for the development and architecture of their features. Squads take full ownership of their code and handle everything from concepting, design and implementation to release, maintenance and bug fixes.

Your team, The Health Intelligence Team operates within the HealthOS Mission to enable other teams to efficiently deliver personalized solutions that help members build sustainable, empowered relationships with their health. We’re at the forefront of integrating Generative AI and LLMs into the the company experience, transforming how members interact with and learn from their data. In addition to shipping delightful end-to-end Android features, we build platform foundations: modular, reusable components, shared libraries, and clear APIs/contracts that let other teams plug into HealthOS capabilities quickly and safely. You’ll collaborate closely with product, design, backend, data science, and research while shaping an Android architecture that is scalable, testable, and easy to evolve.

This is an on-site (Helsinki, Oulu) or remote Finland-based role.

This is a senior position.

What you will do:

• Work together with a passionate team of engineers, designers, UX and product managers creating stellar member-facing experiences around AI, that deliver health insights and guidance.

• Own an AI-powered, member-facing feature end-to-end, from early prototyping through production and iteration, including the client-side integration points with backend AI services.

• Develop new features and capabilities using Kotlin and Jetpack Compose, ensuring responsiveness, scalability, and alignment with design guidelines.

• Refactor existing features to improve code quality, performance, and maintainability.

• Ensure high quality through code reviews, automatic testing, and Android engineering best practices.

• Build and evolve shared design-system components and platform foundations reused by other squads.

• Contribute to build tooling, CI performance and engineering practices that raise velocity across the Android codebase.

Requirements

We would love to have you on our team if you have:

• A minimum of 5 years of professional development experience shipping Android apps.

• Deep experience with Kotlin, Jetpack Compose, and modern Android app architectures (e.g., MVVM/MVI), as well as strong fundamentals in Android platform APIs.

• Proven experience building complex user-facing features and reusable UI components.

• Experience with collaborative development on complex shared codebases.

• Proficiency with Git, branching strategies, pull requests, and standard code review workflows.

• Focus on quality with unit, instrumentation, and snapshot/Compose testing; familiarity with CI for mobile.

• Ability to design and implement performant, reusable, maintainable, and testable code.

• Solid understanding of what you build as a whole, both from an engineering and end-user perspective. You like taking end-to-end ownership.

• Strong cross-functional collaboration skills: Able to work effectively with designers, product managers, and other engineers.

• Strong communication skills: Able to articulate technical concepts and decisions clearly, both verbally and in writing.

• Problem-solving mindset and adaptability: Strong analytical and troubleshooting skills.

• Comfortable with change, ambiguity, and learning new technologies or approaches as needed.

• A proactive, get-things-done attitude.

We also appreciate if you have one or more of the following:

• Experience with Kotlin Coroutines, Flow, performance profiling, and app startup optimization.

• Experience with persistence and data layers (e.g., Room, SQLDelight, Proto DataStore).

• Cross-platform experience (e.g., iOS or backend).

• Experience building GenAI/LLM-powered product features, including client integration with an AI or LLM backend.

• Experience building or maintaining a shared design-system or component library / SDK consumed by multiple teams.

• Experience with Android home-screen widgets or other platform-surface integrations.

• Ability to mentor other engineers and increase developer productivity across teams.

• Experience working asynchronously across countries and time zones.

• Experience with health, wellness, or fitness products.

• Strong systems architecture and performance optimization experience.

• Understanding of accessibility standards in Android development.

• Experience shipping your own Android apps.

What we offer:

• Competitive salary

• Lunch benefit

• Wellness benefit

• Flexible working hours

• Collaborative, smart teammates

• An the company Ring of your own

• Occupational healthcare

• Personal learning & development program

• Wellness Time Off

the company is proud to be an equal opportunity workplace. We celebrate diversity and are committed to creating an inclusive environment for all employees. Individuals seeking employment at the company are considered without regard to age, ancestry, color, gender (including pregnancy, childbirth, or related medical conditions), gender identity or expression, genetic information, marital status, medical condition, mental or physical disability, national origin, protected family care or medical leave status, race, religion (including beliefs and practices or the absence thereof), sexual orientation, military or veteran status, or any other characteristic protected by federal, state, or local laws. We will not tolerate discrimination or harassment based on any of these characteristics.

We will work to ensure individuals with disabilities are provided reasonable accommodation to participate in the interview process, to perform essential job functions, and to receive other benefits and privileges of employment.