Senior Mobile App Engineer (React Native)

About Beacon Biosignals Beacon's AI platform for brain data enables and accelerates new treatments that transform the lives of patients with neurological and psychiatric disease. Through FDA-cleared EEG wearables, novel machine learning algorithms, enormous datasets, and advances in software engineering, we are changing the way patients are treated for disorders of the brain. Want to join the team? We’re hiring—check out the careers page on our website for more. Please be advised that Beacon Biosignals does not ask for personal information outside of our official hiring process. If a role is not listed on our careers page, it is not an active job opening. We will never ask candidates to send money to supplement company equipment, and all official emails from our team will come from the @beacon.bio domain, never text messages or Teams messages.

Beacon Biosignals

Our mission is to improve human health by enabling rapid, targeted interventions through advanced brain analytics.

B

beacon.bio

51-200 employees

Artificial Intelligence

Boston, MA

2019

Privately Held

17k LinkedIn followers

Raised $127M

• Lead development of our React Native mobile applications across iOS and Android.
• Design and implement UX workflows for clinical trial participants and at-home diagnostic patients.
• Own the user experience, performance, reliability, and observability of the apps and features you build, using feedback from real users across diverse use cases and environments.
• Work with engineers on our native iOS and Android BLE device SDKs to integrate device capabilities cleanly into the app.
• Partner with our Devices team, other Platform teams, and product designers to build user-centric mobile capabilities deeply integrated with the rest of Beacon's product ecosystem.
• Help shape the roadmap and technical direction of our mobile platform.
• Build a new in-app feature to validate EEG signal quality before data capture.
• Streamline onboarding for new patients and trial participants to make our devices easier to use than ever.
• Deploy new features that help our Clinical Operations team track compliance.
• Improve app performance, release reliability, and crash/telemetry visibility across our Expo-based build pipeline.

Required

• 8+ years of experience in mobile development, including substantial experience shipping and maintaining production React Native apps on both iOS and Android.
• Strong TypeScript skills and familiarity with our stack (React Native, Expo, GitHub).
• Experience with app state management, offline-first data handling, and app store release processes.
• A product mindset: you care deeply about UX, edge cases, and performance.
• Strong communication skills and comfort working in a collaborative, async environment.

Preferred

• Integrated BLE peripheral devices into iOS and/or Android applications, or worked with sensor integration or health data streams.
• Written native code (Swift or Kotlin) or built native modules for React Native.
• Worked with medical devices, EEG, or wearables.
• Worked on apps for clinical trials, patients, or another regulated environment.
• Contributed to open source mobile or React Native projects.
• The salary range for this role is $150,000 – $190,000. Salary ranges are determined using current market compensation data for this role and adjusted based on experience, skills, and location. The base salary is one component of the total compensation package, which includes equity, PTO, and other benefits.
• At Beacon, we've found that cultural and scientific impact is driven most by those that lead by example. As such, we're always seeking new contributors whose work demonstrates an avid curiosity, a bias towards simplicity, an eye for composability, a self-service mindset, and - most of all - a deep empathy towards colleagues, stakeholders, users, and patients. We believe a diverse team builds more robust systems and achieves higher impact.

• Equity
• PTO