Senior Mobile Engineer, Beacon Biosignals
BLE & Device Connectivity, iOS/Android
$150-190k
+ Equity
More information about location
AI brain monitoring
Job no longer available
AI brain monitoring
101-200 employees
Job no longer available
$150-190k
+ Equity
More information about location
101-200 employees
Company mission
To improve human health by enabling rapid, targeted interventions through advanced brain analytics.
Role
Who you are
- 8+ years of experience in mobile development, with extensive native experience on iOS (Swift) and/or Android (Kotlin)
- Hands-on experience integrating BLE peripheral devices into production mobile apps, including pairing/bonding, reconnection, background operation, and data throughput (e.g., Core Bluetooth, Android BLE APIs)
- Experience with sensor integration or streaming health data from wearables
- A rigorous approach to reliability: you care about edge cases, device fragmentation, and performance
- Strong communication skills and comfort working in a collaborative, async environment
- Worked on apps for clinical trials, patients, or another regulated environment
Desirable
- Built production React Native apps, or written native modules for React Native or Expo
- Worked with TypeScript and our broader stack (React Native, Expo, GitHub)
- Worked with medical devices, EEG, or wearables
- Contributed to open source mobile or BLE projects
What the job involves
- As a Senior Mobile Engineer focused on device connectivity, you'll help power Beacon's mission by building the native iOS and Android BLE layer that connects our EEG headbands and other wearables to the apps patients and clinicians rely on
- Your work will determine how reliably we capture high-fidelity data in homes, clinics, and trial sites
- This isn't just another app. You'll build tools that help unlock insights into neurological, psychiatric, and sleep disorders, with the potential to improve lives at scale
- What success looks like:
- As part of our small, mission-driven Mobile Apps Team, you will:
- Lead development of our native iOS and Android BLE device SDKs
- Own connection reliability, data throughput, and battery performance for device communication across a wide range of phones, OS versions, and real-world environments
- Partner closely with our Devices team on firmware interfaces, GATT profiles, and device behavior
- Expose device capabilities to our React Native applications through clean, well-tested native modules
- Own the observability of device connectivity, using telemetry and field feedback from real users to find and fix failure modes
- Help shape the roadmap and technical direction of our mobile platform
- In your first 3–6 months, you might:
- Improve BLE pairing and reconnection reliability across both iOS and Android
- Increase streaming robustness for EEG data, including recovery from dropped connections and backgrounding
- Build the device-side support for a new in-app feature that validates EEG signal quality before data capture
- Add diagnostics that help our Clinical Operations team troubleshoot device issues in the field
Our take
The brain has long been considered one of the most mysterious fields of medicine - and psychiatric and neurological diseases therefore one of the least understood. Better access to real-time brain data, however, could change this and that’s exactly what Beacon Biosignals is hoping to deliver.
Beacon Biosignals has developed an AI-powered EEG platform designed to better measure and understand brain activity. Its technology includes a lightweight wearable headband that tracks brain signals during sleep and at home, feeding huge amounts of real-world data into machine-learning models. The aim is to help researchers analyze brain activity faster, identify new biomarkers, and improve the development of treatments for neurological and psychiatric disorders.
The company recently raised major funding and acquired home sleep testing specialist CleveMed as it expands its AI-powered brain health platform. Its FDA-cleared wearable headband is already being used in more than 40 clinical trails studying conditions like depression, Alzheimer's, Parkinson's, and sleep disorders. By collecting millions of hours of brain activity data, Beacon hopes to help researchers detect diseases earlier and better understand how the brain changes over time.
Kirsty
Company Specialist at Welcome to the Jungle
Insights
40% employee growth in 12 months
Company
Funding (last 2 of 5 rounds)
Apr 2026
$11m
SERIES B
Nov 2025
$86m
SERIES B
Total funding: $127.5m
Company HQ
Beacon Hill, Boston, MA
Leadership
Jarrett Revels
(Co-Founder & CTO)Prior to co-founding Beacon Biosignals in 2019, Jarrett spent 4 years at Massachusetts Institute of Technology, joining as a Scientific Programmer before become a Performance Engineer then Research Software Developer.
Jacob Donoghue
(Co-Founder & CEO)Jacob completed a Neuroscience PhD at Massachusetts Institute of Technology, and received his MD from Harvard Medical School. Subsequently they carried out research for Cyberkinetics Neurotechnology Systems and Massachusetts General Hospital.
Brandon Westover
(Co-Founder)Received their MD from Washington University School of Medicine, then took up a Neurology residency at Harvard Medical School. Alongside their work at Beacon Biosignals, Brandon is also an HST Faculty member at MIT and a Neurologist/Medical AI Researcher at Massachusetts General Hospital.
Syd Cash
(Co-Founder)Syd is an Associate Professor at Harvard Medical School, who also leads the Center for Neurotechnology and Neurorecovery at MGH.
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