Core Platform Engineer

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Our mission at Oura 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 Oura 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 Oura App operates at a massive scale, featuring many distinct ML-powered features that affect millions of active Oura users. We are looking for a Software Engineer, Core Platform (All Levels), to join our core platform teams. We’re looking for exceptional people. If you lack “senior-level” experience but are otherwise highly capable please do apply. Staff+ engineers will also be considered. This role relates to the following Core Platform Teams: Algorithm Platform Dataflow Platform We’re looking for great candidates that can work on projects related to one of, or both of these teams. About the Algorithm Platform Oura runs algorithms on the ring, app and cloud, both in real time and as batch models. The Algorithm Platform team is focused on the systems that run algorithms in the mobile application and cloud. Platform systems for training ML models are outside of the scope of the team. Ensure seamless devX by making it easy to implement, test, validate and release algorithm-heavy features that power the Oura app, including those reliant on ML models. Ensure algorithm execution is reliable and compute-efficient. About the Dataflow Platform Oura’s main mobile application and backend handles millions of active users and TBs of data. The dataflow squad is responsible for the key abstractions, data stores and syncing protocols that guarantee data moves seamlessly between our mobile application and the AWS 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. These teams are platform teams and therefore most of the work is internal-facing. Both teams have the same upwards line management and it is possible to work on projects from either of them based on internal need and motivation. The tools created by both teams span both cloud and mobile platforms. We’re looking for candidates that are willing to work on mobile as well as backend. Current Tech stackiOS: Swift, with some cross-platform C++.Android: Kotlin, with some cross-platform C++.ML: PytorchCloud: AWS, Python, some Rust. If you don’t have mobile development experience, don’t worry! The same fundamentals apply - handling high concurrency, robustness to crashes, ensuring data consistency and implementing high performance code are all fundamental for these teams. We believe great engineers have a solid understanding of the fundamentals and learn quickly. It is more important that you can showcase excellence than having experience with specific tech. What we’re looking for: Previous experience solving challenging technical problems. Broad knowledge of software fundamentals, algorithms and data structures, concurrency, databases, testing, system and API design. Ability to take ownership of projects, design technical solutions, drive implementation, and deliver results with limited guidance. Ability to produce high quality code quickly (with and without AI) - you’re 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. Relevant Knowledge: Disclaimer: These are not all required. Your actual work is likely to only touch some of them. It’s a long list because all of these skills can potentially be valuable: Experience with mobile app development (iOS and/or Android) Experience writing highly performant code at lower and higher level, including application profiling. Experience working with databases (sqlite, realmdb, postgres/mysql, etc). Schema design and query optimization. Knowledge of distributed system design and its challenges: data consistency, resilience, scalability, etc. Experience building backend systems in the cloud: APIs, databases, containerized services, event processing systems, public cloud. Our cloud systems run on AWS. Experience / exposure to ML and ML operations. We rely heavily on pytorch. Experience with Python Experience with systems programming languages (C/C++, Rust) If you are passionate about building excellent developer tooling, appreciate tackling complex challenges in high stakes, large-scale environments, are highly motivated, and have very strong fundamentals, this is a great opportunity! We look forward to hearing from you! 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 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. Disclaimer: Beware of fake job offers!We’ve been alerted to scammers posing as ŌURA recruiters, especially for remote roles. Please note: Our jobs are listed only on the ŌURA Careers page and trusted job boards. We will never ask for personal information like ID or payment for equipment upfront. Official offers are sent through Docusign after a verbal offer, not via text or email. Stay cautious and protect your personal details. To all recruitment agencies: Oura does not accept agency resumes. Please do not forward resumes to our jobs alias, Oura employees, or any other organization's location. Oura is not responsible for any fees related to unsolicited resumes.