Lead Mobile/Firmware Engineer

Vital Growth Management Ltd; United States; Remote; USD 140,000 - 190,000; Full time

Benefits offered by this job

Competitive salary

Bonuses based on performance

Royalties potential for early employees

Fully remote work environment

Job summary

A tech wellness startup is looking for a Lead Full‑Stack Engineer to develop a next-generation wellness ecosystem centered around a smart hydrogen inhalation device. You'll lead the development of mobile and web features, integrate with hardware, and mentor junior developers. This full-time position offers a competitive salary, bonuses based on performance, and the chance to grow into senior leadership roles. Ideal candidates have 7+ years of experience, strong skills in React/Node.js, and a passion for innovative health technology.

Qualifications

• 7+ years of full‑stack engineering experience.
• Strong experience with modern frontend frameworks (React/React Native preferred).
• Experience building and scaling mobile applications.
• Ability to lead a startup engineering team.

Responsibilities

• Build the InhaleH2 wellness app for iOS and Android.
• Integrate with the hydrogen inhalation device over Bluetooth and Wi-Fi.
• Mentor junior developers and play a key role in team growth.
• Build secure APIs and cloud components.
• Implement device connectivity (Bluetooth/Wi‑Fi) and telemetry.
• Coordinate with product and design from ideation to deployment.

Skills

Full‑stack engineering

React / React Native

Node.js

Database design

Cloud platforms (AWS)

Bluetooth integration

Leadership

Tools

AWS

Git

Node.js

Python

AWS

CI/CD

Job description

InhaleH2 is building a next‑generation wellness ecosystem centered around a smart hydrogen inhalation device and a companion mobile application. Our hydrogen gas inhalation unit delivers therapeutic H₂ mixed with purified air, and the InhaleH2 app will provide users with real‑time insights, session history, personalized wellness recommendations, and integrations with other personal health devices. Similar in concept to Fitbit, Oura, or Garmin.

We are a small team building a new platform from scratch and we are looking for a Lead Full‑Stack Engineer who will help define architecture, build major features, and guide future development.

Role Overview

We’re seeking a versatile, experienced full‑stack engineer who is comfortable working across frontend, backend, mobile, and cloud architecture. You will lead development of the InhaleH2 app and ecosystem. This role is hands‑on and leadership oriented – you will write code daily while also mentoring future hires and driving engineering best practices.

What You’ll Work On

• Build the InhaleH2 wellness app (React Native or similar) for iOS and Android
• Develop responsive web features for account management and dashboards
• Implement user onboarding, authentication, and device setup flows

Device Connectivity & Data

• Integrate with the hydrogen inhalation device over Bluetooth and Wi‑Fi
• Build telemetry systems for device status, usage logs, alerts, and sensor data
• Enable cloud sync for session data and user history
• Implement firmware update flows

Health & Wellness Features

• Session tracking, real‑time monitoring, and usage analytics
• Personalized insights, patterns, and wellness scoring
• Integration with Apple Health, Google Fit, and other health platforms
• Notifications and habit‑building features (reminders, streaks, progress points)
• Architect and maintain backend services and APIs
• Design data models and database schema
• Build secure, scalable cloud components (AWS)
• Implement CI/CD pipelines and monitoring tools
• Collaborate with product and design from ideation through deployment
• Establish engineering best practices, code review processes, and documentation
• Mentor junior developers and help grow the engineering team
• Participate in planning, scoping, and roadmap discussions

What We’re Looking For

• 7+ years of full‑stack engineering experience
• Strong experience with modern frontend frameworks (React / React Native preferred)
• Strong backend experience (Node.js, Python, or similar)
• Experience building and scaling mobile applications
• Solid foundation in database design and API architecture
• Comfort integrating with hardware devices (Bluetooth, Wi‑Fi, or IoT protocols)
• Experience with cloud platforms (AWS) and DevOps best practices
• Ability to take a feature from concept to production independently
• Strong communication skills and leadership qualities
• Thrives in an early‑stage startup environment with fast iteration cycles

Nice to Have

• Experience with health/wellness apps or wearable tech
• Background in sensor data processing or biometrics
• Experience integrating third‑party health data sources
• Prior experience in an early‑stage startup role
• PTO and paid holidays
• Fully remote work environment
• Opportunity to grow into senior leadership

Compensation

• Competitive salary commensurate with experience
• Bonuses based on performance
• Royalties potential for early employees

Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Engineering and Information Technology