auryx builds software that extracts health data from sound. We turn ordinary microphones into health sensors, enabling continuous monitoring of cardiovascular and respiratory signals using audio alone.
Clinicians have listened to the body to assess heart and lung health for centuries. auryx takes this familiar clinical idea and makes it scalable, using AI and software to bring continuous listening out of the clinic and into everyday consumer devices equipped with microphones, starting with earbuds.
Our technology is built on cutting-edge research from the University of Cambridge and integrates directly into consumer devices already in the market. We are using machine learning to turn regular existing earbuds into health and fitness sensors, tracking heart rate, HRV, respiration, and advanced cardiovascular parameters, all through devices people already own. We are an early‑stage, pre‑seed company, moving quickly from proof of concept toward production‑ready systems, and are looking for a software engineer to help build the mobile systems that turn our core ML into a reliable, real‑world product.
The role
As a software engineer at auryx, you’ll play a key role in building the software systems that connect earbuds, mobile applications, and backend services. Your work will span mobile development and device integration, with a focus on turning prototypes into robust, production‑ready software.
Your primary focus will be on the mobile application layer, where you will build applications that interface with earbuds over Bluetooth, manage streaming or session‑based data, and integrate on‑device machine learning inference pipelines. You will also contribute to backend systems that support the mobile application, such as implementing REST APIs for data upload, configuration, and system monitoring, working closely with the team to keep the overall system reliable and scalable.
As an early employee, you will have meaningful ownership over technical direction and implementation. Beyond writing code, you will help shape system architecture, influence product decisions, and work closely with the founding team to define how our technology is deployed, monitored, and scaled. In this environment, we are looking for versatile engineers with a hands‑on approach, strong judgement, a willingness to learn and adapt quickly, and comfort working in ambiguous, fast‑moving environments.
You’ll work closely with the CTO and ML engineers, collaborating on the design and evolution of our end‑to‑end system. The role offers the full spectrum of early‑stage startup experience, from hands‑on implementation to higher‑level architectural trade‑offs and product planning.
What we’re looking for
Required
- 3+ years of experience building and shipping production software systems.
- Experience in Android and/or iOS development.
- Experience building mobile applications that communicate with external hardware over BLE/LE Audio.
- Ability to write clean, maintainable, and well‑tested code in a collaborative environment.
- Curiosity, willingness to learn, and flexibility to adapt and grow in a fast‑moving, uncertain startup environment.
- Comfort working independently, taking ownership, and making pragmatic decisions.
Nice to have
- Experience building and owning backend or cloud systems (APIs, authentication, deployments).
- Experience integrating on‑device ML inference into mobile applications, including runtime usage of TFLite, ONNX Runtime, or Core ML.
- Experience with data privacy, permissions, and security in mobile systems.
- Experience with Apple HealthKit or Samsung Health.
- Early‑stage startup experience.
- UK salary range: £60,000 – £110,000 depending on experience and relevant skills.
- Equity options giving you a meaningful stake in the company’s success.
- Be an integral part of a pioneering, mission‑driven team.
- Significant ownership over your projects and technical decisions. We value growth and initiative, and always recognise your contributions.
- Generous holiday policy: 25 days + bank holidays + 1 personal life event day.
If that sounds like a fit, we look forward to meeting you and sharing more about auryx with you!
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