Senior Ios Engineer, App Sync

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Location: Hybrid in Finland
Team: Mobile Engineering
Level: Senior
Employment Type: Full-time

About the Role

We’re looking for an experienced Senior iOS Engineer to join our mobile team and shape the future of human-centered health technology. This is a high-impact role where you will lead the design and delivery of robust, scalable features for our iOS app — especially those involving complex mobile-cloud synchronization challenges.

You will be working across product areas on end-to-end to seamless data flow between device and backend, and work closely with cloud, data, and product teams to ensure reliable cross-platform experiences for millions of users worldwide.

What You’ll Do
Architect and build scalable, high-performance iOS features and systems across squads.
Take full ownership of synchronization between the app and backend services — including data persistence, sync protocols, conflict resolution, and offline reliability.
Collaborate with the cloud engineering team to co-design interfaces, APIs, and sync strategies that deliver consistent and performant user experiences.
Act as a technical authority for mobile-cloud interactions, driving architectural and implementation best practices.
Work with Combine and DispatchQueue to build responsive, thread-safe, and efficient asynchronous systems.
Deliver thoughtful technical documentation, participate in cross-team design reviews, and mentor peers on synchronization patterns and mobile data flows.
Support feature work by scoping and delivering core synchronization infrastructure improvements.
Identify system-level pain points, reduce technical debt, and raise the bar for engineering quality and operational excellence.
What We’re Looking For
5+ years of iOS development experience using Swift and related frameworks.
Expertise in handling time-series data, mobile persistence, and ensuring data accuracy and consistency.
Deep knowledge of data privacy principles, including encryption, secure storage, and end-user data handling.
Experience building mobile-to-cloud synchronization systems, with background sync, offline handling, and retries.
Strong command of concurrency and reactive frameworks on iOS, especially:
Combine for declarative, reactive data flow
DispatchQueue for thread management and task coordination
Demonstrated experience owning and delivering complex, high-impact projects across multiple teams.
Clear communicator and empathetic collaborator who thrives in a cross-functional, fast-moving environment.
Passion for advancing personal health through thoughtful, data-driven design and technology.

Benefits

What we offer:
Competitive salary
Lunch benefit
Wellness benefit
Flexible working hours
Collaborative, smart teammates
An Oura Ring of your own
Occupational healthcare
Personal learning & development program
Wellness Time Off
Possibility to work fully remote if that’s what you prefer. Our squad is remote first.

Oura 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 Oura are considered without regards 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, socioeconomic status, 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 local laws. We will not tolerate discrimination or harassment based on any of these characteristics.

What next?

Ready to make a real impact on people’s health and well-being? Join our fast-moving team where your work will directly shape how millions of users understand and improve their lives. We’re excited to see what we can build together.