Senior Software Engineer, DataFlow (Android)

United States Digital Space LLC; Helsinki; Hybrid; EUR 90,000 - 130,000; Full time

Job summary

United States Digital Space LLC is seeking a Senior Software Engineer, DataFlow (Android) to focus on core Android components for storage and data movement between the app and cloud. This hybrid role involves occasional presence at the Helsinki office and close collaboration with a cross-functional team.

You will be one of the core Android engineers, writing Kotlin, improving data sync, storage, and automation, while mentoring teammates and driving architectural improvements for millions of

Qualifications

• Experience with mobile development.
• Proficiency in Kotlin and modern Android app architecture.
• Experience solving challenging technical problems.
• Knowledge of data synchronization and platform data management.

Responsibilities

• Write Kotlin code for Android dataflow components.
• Improve app-cloud data sync: reliability, latency, performance, observability.
• Enhance app-side data storage: performance, access APIs, migrations.
• Develop automation and code-generation layers.
• Collaborate across Android, iOS, backend teams on platform features.
• Contribute to design and implementation with proactive improvements.

Skills

Mobile development

Kotlin

Android architecture

Mentoring

Strong communication

Tools

Android Studio

RealmDB

Sqlite

Python

Rust

AWS

TypeScript

C++ libraries

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.

We are looking for a Senior Software Engineer, DataFlow (Android), to focus on core Android components responsible for storage and movement of data between the company’s mobile app and cloud.

This role is hybrid, as you'll work a day or so a week at the Helsinki Office at Pohjoisesplanadi 37. We don't have any strict policy on this as a company, but as a team we appreciate spending some time face to face.

Team size: 6-10DataFlow team core mission:

• Reduce the effort required to store and query data that needs to be available in the company’s app and across the cloud

• Empower feature teams to develop end-to-end features without the need to involve backend engineers.

• Evangelize compliance with standardized data schemas, data quality and data lifetime management.

• Ensure our systems are performant, scalable and cost-efficient, able to handle millions of active users and PBs of data.

The dataflow team is a platform team - most of the work is internal-facing. UI work is rare.The team includes android, iOS, backend, and “full-stack” engineers that do both app-side and backend work.

This role:

You will be one of the core Android engineers for this team. The focus area may naturally shift over time but the following provides an idea of the work being done:

• Writing kotlin code (for the most part)

• Improving app-cloud data sync, including: reliability, latency, performance, observability.

• Improving app-side data storage: performance, data access api design, data migration systems, etc.

• Implementing automation and codegeneration layers.

• Supporting a variety of work in the platform domain, including data management and more.

You will participate in both design and implementation work. This being a platform team with internal users, we expect team members to be proactive in identifying opportunities for improvement at feature and architecture level.

Technologies:

• Android: Kotlin, (with some C++ libs, mostly in other domains), RealmDB (we’re migrating away from it), Sqlite

• Backend: Python, Rust, AWS

• Misc: some TypeScript

We believe great engineers have a solid understanding of the fundamentals and learn quickly. Hence it’s more important that you can showcase excellence than having experience with specific tech.What we’re looking for:

• Experience with mobile development

• Ideally, proficient in Kotlin programming and modern Android app architecture. iOS experience is also considered.

• Previous experience solving challenging technical problems.

• Broad knowledge of software fundamentals, testing, concurrency, databases, and system design.

• Ability to take ownership of projects, design technical solutions, drive implementation, and deliver results with limited guidance.

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

• Ability to produce high quality code quickly (with and without AI) - you identify yourself as a prolific programmer.

• Driven by value creation and overall impact.

• Team player with great spoken and written communication skills.

• Motivated to learn and further develop your skills

Not required but potentially relevant:

• Knowledge of distributed systems, data syncing mechanisms and challenges (data consistency, etc).

• Experience with HTTP API design: if interested, there is potential to work on both the backend APIs and the Android integration for new features

• Experience with JNI and C/C++ code.

• Experience writing highly performant code at lower and higher level, including application profiling.

• Knowledge of iOS - if interested, there is potential to contribute on both Android and iOS.

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.