Full Stack Engineer

About ONLYQ

ONLYQ is building the world’s most advanced  ultra-slim, clinical-grade health wearable —combining premium materials (ceramic, sapphire, FKM), multi-sensor physiology (PPG, ECG, EDA, Temp, IMU), and real-time AI analytics.

Backed by  Cymetree Projects LLP , a high-growth multi-vertical enterprise (USD 340M projected revenue this year), ONLYQ is a  self-funded, long-term premium hardware–AI ecosystem  with global ambitions.

We’re assembling a world-class team to launch our Gen-1 wristband and mobile app—designed to compete with WHOOP, Oura, Garmin, and Apple.

Role Overview

We are looking for an exceptional  Senior Full-Stack Mobile Developer  with deep experience in  Bluetooth Low Energy (BLE), real-time sensor streaming, and native mobile development (iOS + Android) .

This is a  core team, high-ownership role  responsible for building the ONLYQ mobile app from scratch—architecture, BLE integration, data pipelines, backend APIs, and production-quality UI.

You will work closely with our firmware, sensor, and AI teams to deliver a world-class health and wellness experience.

What You Will Build

• Native iOS and Android apps for ONLYQ (Swift + Kotlin)
• High-stability BLE pipeline for PPG / ECG / EDA / Temp / IMU streaming
• Real-time data ingestion, processing, caching & cloud sync
• Backend API layer (Node.js or Python)
• AI / ML model integration (sleep, HRV, stress, readiness)
• Beautiful dashboards and wellness visualizations
• Secure user authentication, subscription, and cloud services
• CI / CD pipelines & scalable architecture for future V2 / V3 hardware

Key Responsibilities

Mobile Development

Backend & API

Data & AI Integration

Architecture & Quality

Required Skills

Mobile (Mandatory)

Backend

Wearable / Health Data

Bonus Skills

Who Should Apply

What We Offer